/**
 * AJAX FUNCTIONS
 */

	/****************************************************
	 * DONT EDIT BELOW HERE
	 * UNLESS YOU KNOW WHAT YOU'RE DOING, OF COURSE
	 ****************************************************/
	
	//// CPAINT OBJECT (TEXT OUTPUT)
	var cp = new cpaint()
	cp.set_transfer_mode('get')
	cp.set_response_type('text')
	if (javascript_debug_flag) cp.set_debug(2)
	
	
	//// PRIVATE EVENT HANDLING ////
	window.onload = init;
	window.onkeydown = keyNavigation;
	window.onresize = (preview_mode == 0)
		? resizeImageBg
		: function(){};
	
	// elect menu show/hide vars
	var select_menu = false;
	var select_menu_width = 200;
	
	
	////// FUNCTIONS ////////////////////////////////////////////
	
	//// init functions //////////////////////////////////////////////
	
	function init()
	{
		setCurrentPosition();
		resizeImageBg();
		setMaxSizes();
		setGalleries();
		display('gallery_description','block');
		innerhtml('gallery_title',lang['menu_guide']);
		
		if (use_select_menu) display('msc_menu','none');
		
		if (alert_message.length>0) showAlert();
		
		inited = true;
	}
	
	function resizeImageBg() {
		setMaxSizes();
		var bg_div = getID('image_bg');
		var pageSize = getPageSize();
		bg_div.style.width = pageSize[2]+"px";
		bg_div.style.height = pageSize[3]+"px";
	}
	
	
	//// set gallery and image paths
	
	function setCurrentPosition()
	{
		if (show_permalink) {
		
			var current_path = '';
			var window_location = window.location.href;
			var window_hash = window.location.hash;
			
			// strip any permalinks if they exist
			var wl = window.location.href.length
			var whl = window.location.hash.length
			var location = window.location.href.substring(0,wl-whl);
			
			var current_link = (!active_permalink)
				? location+'#'
				: '';
			
			display('image_url', 'block');
			
			if (active_id) {
				current_link += sendEncoded(active_id.sq(),'url');
				if (active_img) {
					current_link += ':'+ sendEncoded(active_img.sq(),'url');
				}
			}
			
			var gallery_name = sendEncoded(active_id.sq(),'url');
			
			current_path = '<a id="permalink_a" href="javascript:;" '
				+ 'onclick="showPermalink(\''+current_link+'\');">('
				+ lang['permalink']+')</a>'
			
			innerhtml('tools_permalink', current_path);
			innerhtml('image_url', current_path);
			
			//window.location.hash = gallery_name;
		}
	}
	
	function showPermalink(link)
	{
		if (!active_permalink) {
			var openWin = prompt(lang['permalink']+':#',link);
		} else {
			getID('hash').name = link;
			window.location.hash = link;
			return true;
		}
	}
	
	//// check galleries //////////////////////////////////////////////
	
	function setGalleries()
	{
		cp.call( base_url+'libraries/ajax.gateway.php',
			'get_galleries',
			updateGalleries );
		
		var html = '<span><img src="'
			+indicator_src+'" /> '
			+lang['loading_menu']
			+'...</span>';
		
		if (use_select_menu) {
			innerhtml('galleries_select', html);
		} else {
			innerhtml('galleries_menu', html);
		}
	}
	
	function updateGalleries(request)
	{
		if (use_select_menu) {
			updateGalleriesSelect(request);
			
		} else {
			updateGalleriesMenu(request);
		}
	}
	
	
	function updateGalleriesMenu(request)
	{
		var result = getEncoded(request,'enc');
		
		if (result != "null") {
			var galleries = result.split("|");
			var selected = null;
			var menu = "";
			var gallery_list = new Array();
			
			var ul = document.createElement('ul')
			
			for (var i=0; i<galleries.length-1; i++)
			{
				var galleries_data = galleries[i].split(":");
				var id = galleries_data[0];
				var g_id_files = galleries_data[1];
				var g_password = galleries_data[2];
				
				id_files[id] = g_id_files;
				id_password[id] =  (g_password) ? g_password : '';
				
				var li = document.createElement('li')
				li.setAttribute('id', 'mitem_'+i)
				if (i>0) li.setAttribute('class', 'topline')
				
				if (number_galleries) {
					var em = document.createElement('em')
					em.innerHTML = zero(i+1)+'&nbsp;'
					li.appendChild(em)
				}
				
				var a = document.createElement('a')
				a.setAttribute('id', id)
				a.setAttribute('href', 'javascript:;')
				if (!number_galleries) a.setAttribute('class', 'nonum')
				a.onclick = function() { setGallery(this.id.sq(),this) }
				a.innerHTML = ''
					+((g_password)?'<img class="lock" src="images/lock.gif" alt="" />':'')
					+ galleryName(id)
					+' <small>('+g_id_files+')</small>'
					
				li.appendChild(a)
				
				ul.appendChild(li)
			}
			
			innerhtml('galleries_menu', '');
			
			var m = getID('galleries_menu')
			m.appendChild(ul)
			
			if (query_parameters['g']) {
				setGallery(query_parameters['g'], false);
				
			} else if (g_default) {
				if ((g_default_name != '') && (g_default_name_exists)) {
					setGallery(g_default_name, false);
				} else {
					for (i=0; i<galleries.length; i++) {
						var g_default_data = galleries[i].split(":");
						if (g_default_data[1]!="p") {
							setGallery(g_default_data[0], false);
							break;
						}
					}
				}
			}
		
		// no galleries available
		} else {
			var menu = "";
			
			menu += '<ul>';
			menu += '<li id="mitem_0">';
			menu += 'no galleries found';
			menu += '</li>';
			menu += '</ul>';
			
			innerhtml('galleries_menu',menu);
		}
	}
	
	function updateGalleriesSelect(request)
	{
		var result = getEncoded(request,'enc');
		
		if (result != "null") {
			var galleries = result.split("|");
			var selected = null;
			var menu = "";
			var gallery_list = new Array();
			
			menu += lang['menu_title']+': ';
			menu += '<span id="gallery_select_menu">';
			menu += '<select id="select_menu" onchange="setGallery(this.value,false)">';
			menu += '<option value="null">'+lang['menu_guide']+'</option>';
			for (var i=0; i<galleries.length-1; i++)
			{
				var galleries_data = galleries[i].split(":");
				var id = galleries_data[0];
				var g_id_files = galleries_data[1];
				var g_password = galleries_data[2];
				
				id_files[id] = g_id_files;
				id_password[id] = (g_password) ? g_password : '';
				
				menu += '<option value="'+id+'">';
				menu += galleryName(id);
				if (g_password) menu += ' (password)';
				menu += '</option>';
			}
			menu += '</select>';
			menu += '</span>';
			
			innerhtml('galleries_select', menu);
			
			if (query_parameters['g']) {
				setGallery(query_parameters['g'], false);
				
			} else if (g_default) {
				if ((g_default_name != '') && (g_default_name_exists)) {
					setGallery(g_default_name, false);
				} else {
					for (i=0; i<galleries.length; i++) {
						var g_default_data = galleries[i].split(":");
						if (g_default_data[1]!="p") {
							setGallery(g_default_data[0], false);
							break;
						}
					}
				}
			}
		
		// no galleries available
		} else {
			var menu = "";
			
			menu += '<select>';
			menu += '<option value="null">no galleries found</option>';
			menu += '</select>';
			
			innerhtml('galleries_menu',menu);
		}
	}
	
	
	//// set selected gallery ///////////////////////////////////////
	
	function setGallery(id, link)
	{
		if (id_password[id] && id_password[id]!='') {
			gallery_password = prompt('Password:');
			if (gallery_password != id_password[id]) {
				alert('This gallery is password protected, sorry.');
				return false;
			}
		}
		if (!reloading) {
			th_min = 0;
		
			//// check if we're retrieving all thumbnails or just a block
			if (compact_navigation) {
				th_max = ((th_min+th_diff) < id_files[id])
					? (th_min+th_diff)
					: id_files[id];
					
			} else {
				th_max = id_files[id];
			}
		} else {
			reloading = false;
		}
		
		if (active_id != id) {
			
			//// clean up the globals
			
			active_id = id;
			
			active_img = '';
			th_array = Array();
			image_list = Array();
			
			innerhtml('image_title','');
			
			display('msc_image','none');
			
			//display('toolmenu','block');
			
			if (show_visited_galleries && !use_select_menu) {
				if (link) link.style.color = theme_menu_hover;
				else getID(id).style.color = theme_menu_hover;
			}
			
			innerhtml('gallery_title','<img src="'+indicator_src
				+'" /> <span>'+lang['loading_title']+'</span><strong>'
				+galleryName(id)
				+'</strong>...');
			
			getData(id);
			
			getThumbs(id, th_min, th_max);
			
			setCurrentPosition();
		}
	}
	
	//// get gallery data ///////////////////////////////////////
	
	function getData(id)
	{
		display('gallery_description','none');
		innerhtml('gallery_description','');
		
		cp.call(base_url+'libraries/ajax.gateway.php', 'get_data', updateData, Url.encode(id));
		
	}
	
	function updateData(request)
	{
		var result = getEncoded(request,'url');
		//Url.decode(request.responseText);
		
		if (result != 'null') {
			innerhtml('gallery_description', result);
			display('gallery_description','block');
		}
	}
	
	
	function getBlockNav(id)
	{
		if (compact_navigation
			&& (id_files[id] > th_diff)) {
			display('gallery_nav','block');
			display('gallery_nav2','block');
		
			var block = '';
			var l = Math.round(id_files[id])-1;
			var block_number = 0;
			
			//// arrow nav
			//block += '<a href="javascript:;">&larr;</a> ';
		
			var i = 0;
			while (i<=l) {
				var min = i;
				var max = (i+th_diff < l)
					? Math.round(i+th_diff)
					: l;
			
				var show_min = Math.round(min+1);
				var show_max = Math.round(max+1);
			
				current_block = ((th_min <= i) && (th_max >= i)) ? true : false;
			
				if (!current_block) {
					block += '<a href="javascript:;" onclick="getThumbs(';
					block += "'"+id.sq()+"', "+min+","+max;
					block += ')">';
				}
			
				block_number++;
			
				if (!numbered_blocks) {
					if (show_min == show_max) {
						block += ' ['+zero(show_max)+']';
					} else {
						block += ' ['+zero(show_min)+':'+zero(show_max)+']';
					}
				} else {
					block += ' ['+zero(block_number)+']';
				}
			
				if (!current_block) block += '</a>';
			
				i = max+1;
			}
			
			//// arrow nav
			//block += ' <a href="javascript:;">&rarr;</a>';
		
			innerhtml('gallery_block', block);
			innerhtml('gallery_block2', block);
		
		} else {
			display('gallery_nav','none');
			display('gallery_nav2','none');
		}
	}
	
	
	//// update thumbs //////////////////////////////////////////////
	
	function getThumbs(id, min, max)
	{
		if (compact_navigation) {
			th_min = min;
			th_max = max;
		} else {
			th_min = 0;
			th_max = id_files[id];
		}
		
		innerhtml('thumbs_cont','');
		
		showLoadingBar();
		
		active_id = id;
		
		cp.call(base_url+'libraries/ajax.gateway.php', 'get_thumbs', 
			updateThumbs, Url.encode(id), min, max);
		
		getBlockNav(active_id);
	}
	
	
	function updateThumbs(request)
	{
		var result = getEncoded(request,'url');
		
		var output = '';
		var total = 0;
		var overwidth = 12;
		var total_width = 0;
		images_total = 0;
		image_list = [];
		thNum = 0;
		
		gallery_title_cont = '<span class="xtra">'
			+lang['gallery_name_prepend']
			+'</span> <strong>'
			+galleryName(active_id)
			+'</strong> <span class="xtra">'
			+lang['gallery_name_append']
			
			// reload gallery
			+' <a href="javascript:;" onclick="active_id=false;reloading=true;setGallery('
			+"'"+active_id.sq()+"', false"
			+')">('+lang['gallery_reload']+')</a>'
			
			+'</span>';
			
			// slideshow
			var slideshow_link = ' <a href ="javascript:;"'
				+ ' onclick="startSlideshow();">'
				+ '('+lang['slideshow_name']+')</a>'
			
			display('tools_menu', 'block');
			innerhtml('tools_slideshow',slideshow_link);
		
		/* gateway internal error reporting: */
		// no images in gallery
		if (result == "null") {
			resetLoadingBar();
			innerhtml('thumbs_cont', '<p class="noimg">'+lang['alert_no_images']+'...</p>');
			innerhtml('thumbs_load','');
			innerhtml('gallery_title',gallery_title_cont);
		
		// show thumbnails
		} else {
			th_array = result.split('|');
			images_total = th_array.pop();
			
			innerhtml('thumbs_cont','<ul id="thumbs_ul"></ul>');
				
			innerhtml('gallery_title', '<img src="'+indicator_src+'" /> '+gallery_title_cont);
				
			var thul = getID('thumbs_ul')
			
			for (i=1; i<=images_total; i++) {
				var li = document.createElement('li')
				li.setAttribute('id','list_'+i)
				
				var a = document.createElement('a')
				a.setAttribute('id','link_'+i)
				
				var d1 = document.createElement('div')
				d1.setAttribute('id','image_'+i)
				
				var d2 = document.createElement('div')
				d2.setAttribute('class','th_load_div')
				d2.innerHTML = 'loading...'
				
				d1.appendChild(d2)
				a.appendChild(d1)
				
				if (show_thumb_name) {
					var p = document.createElement('p')
					p.setAttribute('id','text_'+i)
					p.innerHTML = '&nbsp;'
					a.appendChild(p)
				}
				
				li.appendChild(a)
				thul.appendChild(li)
				
				/*
				var li = '<li id="list_'+i+'">';
				li += '<a id="link_'+i+'">';
				li += '<div id="image_'+i+'">';
				li += '<div class="th_load_div">';
				li += 'loading...'
				li += '</div>';
				li += '</div>';
				if (show_thumb_name) li += '<p id="text_'+i+'">&nbsp;</p>';
				li += '</a>';
				li += '</li>';
				getID('thumbs_ul').innerHTML += li;
				*/
				//// loadbar
				updateLoadingBar((i-1), images_total);
			}
			
			if (set_thumbnail_container_height) {
				var thContDiv = getID('thumbs_ul');
				thContDiv.style.height = (thContDiv.offsetHeight + 10) + "px";
			}
			
			if (use_load_interval) {
				thNum = 0;
				var intNum = (msie) ? 1 : 0;
				loadThumbsInterval = setInterval("buildAllThumbs()",intNum);
				
			} else {
				thNum = 0;
				buildAllThumbs();
				
			}
		}
	}
	
	
	function buildAllThumbs()
	{
		knum = thNum;
		thNum++;
		inum = thNum;
		
		var output_image = '';
		var output_text = '';
		
		if (th_array[knum]) {
		
			//// loadbar
			updateLoadingBar(knum, images_total);
			
			var image = th_array[knum].split(';');
			var img = image[0];
			var name = imageName(image[1]);
			var w = image[2];
			var h = image[3];
			var thumb = image[4];
			
			image_list[inum] = new Array();
			image_list[inum]['num'] = inum;
			image_list[inum]['image'] = img;
			image_list[inum]['name'] = name;
			image_list[inum]['w'] = w;
			image_list[inum]['h'] = h;
			image_list[inum]['thumb'] = thumb;
			
			if (query_parameters['i']
				&& query_parameters['i']==image_list[inum]['image']) {
				open_image = image_list[inum];
			}
			
			var image_url = base_url+"galleries/"+active_id+"/"+img;
			
			//// attach onclick method to link
			var alink = getID('link_'+inum);
			alink.name = name;
			alink.title = name;
			
			if (preview_mode == 1) {
				// Slimbox 1.22 by Christophe Beyls
				alink.href = image_url;
				alink.rel = 'lightbox['+active_id.sq()+']';
				alink.style.display = 'none';
				
			} else if (preview_mode == 2) {
				// ThickBox 2.1 by Cody Lindley
				alink.href = image_url;
				alink.className = 'thickbox';
				alink.rel = active_id.sq();
				alink.style.display = 'none';
				
			} else {
				alink.href = 'javascript:;';
				alink.num = inum;
				alink.img = img;
				alink.name = name;
				
				alink.onclick = function() {
					getImage(this.num, this.img, this.filename);
				}
			}
			
			if (!square_thumbnails) {
				output_image += '<table id="thtable_'+inum+'" '
					+'border="0" cellpadding="0" '
					+'cellspacing="0" width="100%" height="'+(thumbnail_max_size+6)+'" '
					+ 'valign="middle" align="center">'
					+'<tr><td valign="middle" align="center">';
			}
			
			thumb_div_style = (square_thumbnails)
				? "width:"+(thumbnail_max_size+6)+"px;height:"
					+(thumbnail_max_size+6)+"px;"
				: '';
			
			output_image += '<div style="'+thumb_div_style+'"'
				+' id="thcont_'+inum+'">';
			
			// add image code //
			output_image += '<img id="thimg_'+inum+'"'
				+' class="thumb_loader"'
				+' title="'+name+'" alt="'+name+'"'
				+' src="'+indicator_src+'" />'
			
			output_image += '</div>';
			
			if (!square_thumbnails) {
				output_image += '</td></tr></table>';
			}
				
			if (show_thumb_name) {
				output_text = thumbName(image_list[inum]['name']);
			}
			
			getID('image_'+inum).innerHTML = output_image;
			
			if (show_thumb_name)
				getID('text_'+inum).innerHTML = output_text;
			
			if (set_thumbnail_container_height) {
				var thContDiv = getID('thumbs_ul');
				thContDiv.style.height = (thContDiv.offsetHeight + 10) + "px";
			}
			
			if (!use_load_interval) buildAllThumbs();
			 
		} else {
			
			clearInterval(loadThumbsInterval);
			
			thNum = 0;
			addThumbImage();
			
			if (open_image) {
				getImage(
					open_image['num'],
					open_image['image'],
					open_image['name']
				);
			}
		}
	}
	
	function addThumbImage()
	{
		thNum++;
		var inum = thNum;
		
		updateLoadingBar(inum, images_total);
		
		if (image_list[inum]) {
			var thumbPath = '';
			if (image_list[inum]['thumb'] != '1') {
				if (create_thumbnails) {
					
					// cache_thumb_size = max thumb size when cached
					thumbPath = base_url
						+'libraries/thumb.display.php?'
						+ 'max='+cache_thumb_size+'&img='
						+ base_url+'galleries/'+setUrlEncoding(active_id)+'/'
						+ setUrlEncoding(image_list[inum]['image']);
					
					if (cache_thumbnails)
						thumbPath += '&c=1';
					
					if (square_thumbnails)
						thumbPath += '&sq=1';
					
				} else {
					thumbPath = base_url
						+'galleries/'+setUrlEncoding(active_id)+'/'
						+setUrlEncoding(image_list[inum]['image']);
				}
			} else {
				thumbPath = base_url
					+ 'cache/' + gallery_prefix + setUrlEncoding(active_id)
					+ '/' + thumbnail_prefix
					+ setUrlEncoding(image_list[inum]['image']);
			}
			
			var image = thumbPath;
			var name = image_list[inum]['name'];
			var ow = image_list[inum]['w'];
			var oh = image_list[inum]['h'];
			
			var ww = 0;
			var hh = 0;
				
			if (!square_thumbnails) {
				if (Math.floor(ow) <= Math.floor(oh)) {
					hh = Math.floor(thumbnail_max_size);
					ww = Math.floor((ow*thumbnail_max_size)/oh);
				} else {
					ww = Math.floor(thumbnail_max_size);
					hh = Math.floor((oh*thumbnail_max_size)/ow);
				}
			} else {
				ww = thumbnail_max_size;
				hh = thumbnail_max_size;
			}
			
			output_image = '<img id="thimg_'+inum+'" '
				+'class="thumb_img" '
				+' title="'+name+'" alt="'+name+'"'
				+'src="'+image+'" '
				+'width="'+ww+'" '
				+'height="'+hh+'" />';
			
			innerhtml('thcont_'+inum, output_image);
			
			/*if (show_thumb_name) {
				output_text = thumbName(image_list[inum]['name']);
				getID('text_'+inum).innerHTML = output_text;
			}*/
			
			addThumbImage();
			
		} else {
			
			resetLoadingBar();
			
			delete currentThumb;
			delete currentThumbData;
			thNum = 0;
			
			if (preview_mode == 1) SlimboxInit();
			else if (preview_mode == 2) ThickBoxInit();
			
			innerhtml('gallery_title', gallery_title_cont);
			
			if (set_thumbnail_container_height) {
				var thContDiv = getID('thumbs_ul');
				thContDiv.style.height = (thContDiv.offsetHeight + 10) + "px";
			}
			
			if (continuous_nav
				&& open_first_image
				) {
				last_num = false;
				num = (open_first_image == 'next')
					? 1
					: image_list.length-1;
				getImage(
						num,
						image_list[num]['image'],
						image_list[num]['name']
					);
				open_first_image = false;
			}
		}
	}
	
	
	/**** image extensions init scripts ****/
	
	function LightboxInit() { initLightbox(); }
	function ThickBoxInit() { TB_init(); }
	function SlimboxInit() { Lightbox.init(); }
	
	
	/**** loading bar scripts ****/
	
	function showLoadingBar()
	{
		if (show_loading_bar) {
			display('thumbs_load','block');
			innerhtml('thumbs_load', '<div id="loadbar"></div>');
		}
	}
	
	function updateLoadingBar(num, total)
	{
		if (show_loading_bar) {
			var diff = Math.floor(((content_width-160)/total)*(num+1))+100;
			getID('loadbar').style.width = diff+'px';
			getID('loadbar').innerHTML = '<p>'+lang['loading_title']+' '+(total-num)+'</p>';
		}
	}
	
	function resetLoadingBar()
	{
		if (show_loading_bar) {
			getID('loadbar').innerHTML = '';
			getID('loadbar').style.width = '0px';
			
			display('thumbs_load','none');
			innerhtml('thumbs_load','');
		}
	}
	
	
	
	/**** IMAGE SCRIPTS **************************/
	
	//// show selected image //////////////////////////////////////////
	
	function getImage(num, img, uname)
	{
		//display('img','block');
		
		innerhtml('mainimg_desc', '');
		
		display('gallery_select_menu','none');
		
		var name = imageName(getEncoded(uname,'esc'));
		
		active_img = img.split("/").pop();
		
		var imgPath =  base_url+"galleries/"+active_id+"/"+img;
		
		var imgload = '';
		var name = img.split("/").pop();
		imgload += '<div id="loaddiv"><img id="loadimg" src="'+indicator_src+'" /> '+lang['loading_title']+' <strong>'+name+'</strong></div>';
		
		innerhtml('img',imgload);
		display('img','block');
		
		var loadobj = getID('loaddiv');
		loadobj.style.display = 'block';
		
		active_num = Math.floor(num);
		
		last_num = num;
		
		//// image title scripts
		var load_cont = '<small>'+lang['loading_title']+' '
			+lang['loading_image']+': <strong>'
			+imageName(name)
			+'</strong>...</small>';
		
		innerhtml('image_title',load_cont);
		
		//// relocate msc_image
		var msc_image = getID('msc_image');
		if (!msie) msc_image.style.position = 'fixed';
		
		//display('msc_image','block');
		
		checkNavigation(num);
		
		cp.call(base_url+'libraries/ajax.gateway.php', 'get_image', 
			updateImage, num, Url.encode(imgPath), Url.encode(name));
		
		
		var pageSize = getPageSize();
		var bg_div = getID('image_bg');
		bg_div.style.width = pageSize[2]+"px";
		bg_div.style.height = pageSize[3]+"px";
		
		if (animate_preview) {
			showDiv('msc_image',false);
			
		} else {
			display('msc_image','block');
		}
		
		//// create nav thumbs
		buildNavThumbs();
	}
	
	
	function updateImage(request)
	{
		var result = getEncoded(request,'url');
		
		currentImage = new Image();
		currentImageData = new Object();
		
		var output = result.split(';');
		var num = output[0];
		var img = output[1];
		var name = imageName(getEncoded(output[2],'esc')); //// ######
		var w = Math.floor(output[3]);
		var h = Math.floor(output[4]);
		var desc = (output[5]!='null') ? output[5] : 'null';
		
		var nw = w;
		var nh = h;
		var link = false;
		
		var iname = '<strong>'+name
			+'</strong> <small>'+w+'x'+h+'px ('
			+lang['loading_image']+' '
			+num+' '+lang['loading_of']+' '
			+images_total+')</small>';
			
		var imgout = '';
		
		if (desc != 'null') {
			imgdesc = '<div class="image_description">'+desc+'</div>';
			innerhtml('mainimg_desc', imgdesc);
		} else {
			innerhtml('mainimg_desc', '');
		}
		
		//// size code
		
		//alert('num:'+num+'\nimg:'+img+'\nname:'+name+'\nw:'+w+'\nh:'+h);
		
		if (set_double_encoding) {
			escapedImg = escape(img);
		} else {
			escapedImg = Url.encode(img);
		}
		
		//// this code selects the image to be displayed
		//// whether cached, resized or original
		
		setMaxSizes();
		
		var resized_img = false;
		
		// set cached image size
		if (nh > max_image_height) {
			nh = max_image_height;
			nw = Math.round((w*max_image_height)/h);
			if (nw > max_image_width) {
				dw = nw;
				dh = nh;
				nw = max_image_width;
				nh = Math.round((dh*max_image_width)/dw);
			}
			resized_img = true;
		}

		var img_maxsize = (nh > nw) ? nh : nw;
		var fw = nw;
		var fh = nh;
		
		if (resized_img && create_thumbnails) {
			//// enlarge message on top
			//imgout += '<p><a href="'+escapedImg+'" target="_blank"><small>'+lang['alert_enlarge']+'</small></a></p>';
			
			var targetLink = escapedImg
			
			imgout += '<a href="'+targetLink+'" target="_blank">';
			imgout += '<img id="mainimg" class="imagen" src="';
			
			if (scale_big_images) {
				imgout += base_url+'libraries/thumb.display.php?';
				imgout += 'max='+img_maxsize
					+'&q='+large_image_quality
					+'&img='+escapedImg;
			} else {
				imgout += base_url+escapedImg;
			}
			
			imgout += '" width="'+fw+'" height="'+fh+'"';
			imgout += ' title="'+name+'" alt="'+name+'" />';
			imgout += '</a>';
			
			//// enlarge message at bottom
			imgout += '<p><a href="'+escapedImg+'" target="_blank"><small>'+lang['alert_enlarge']+'</small></a></p>';
			
		} else {
			imgout = '<img id="mainimg" class="imagen" src="'+escapedImg+'"  width="'+fw+'" height="'+fh+'" title="'+name+'" alt="'+name+'" />';
			
		}
		
		var imgdiv = getID('img');
		imgdiv.style.width = Math.round(nw+18)+'px';
		imgdiv.style.height = Math.round(nh+18)+'px';
		
		//// set image source
		innerhtml('img', imgout);
		
		//// set image title
		innerhtml('image_title', iname);
		
		//// add image description
		if (show_image_description) {
			var image_desc_content = 'Description of image'
			var image_desc = '<div class="description">'+image_desc_content+'</div>'
			
			display('mainimg_desc','block');
			innerhtml('mainimg_desc',image_desc);
		}
		
		setCurrentPosition();
	}
	
	function buildNavThumbs()
	{
		innerhtml('nav_thumbs','');
		
		var thumbsDiv = getID('nav_thumbs');
		
		var outimg = '';
		var num = 0;
		var activeNum = Number(active_num);
		
		var image = '';
		var name = '';
		var selectDiv = new Object();
		
		//// first thumbnail
		num = Number(activeNum-2);
		if (num>=1) {
			image = image_list[num]['image'];
			name = image_list[num]['name'];
		} else {
			image = false;
			name = false;
		}
		//selectDiv = addNavThumb(image, name, activeNum);
		thumbsDiv.appendChild(addNavThumb(image, name, num));
		
		//// second thumbnail
		num = Number(activeNum-1);
		if (num>=1) {
			image = image_list[num]['image'];
			name = image_list[num]['name'];
		} else {
			image = false;
			name = false;
		}
		//selectDiv = addNavThumb(image, name, activeNum);
		thumbsDiv.appendChild(addNavThumb(image, name, num));
		
		//// third thumbnail
		num = Number(activeNum);
		if (image_list[num]['image']) {
			image = image_list[num]['image'];
			name = image_list[num]['name'];
		} else {
			image = false;
			name = false;
		}
		//selectDiv = addNavThumb(image, name, activeNum);
		thumbsDiv.appendChild(addNavThumb(image, name, num));
		
		//// fourth thumbnail
		num = Number(activeNum+1);
		if (num<image_list.length) {
			image = image_list[num]['image'];
			name = image_list[num]['name'];
		} else {
			image = false;
			name = false;
		}
		//selectDiv = addNavThumb(image, name, activeNum);
		thumbsDiv.appendChild(addNavThumb(image, name, num));
		
		//// fifth thumbnail
		num = Number(activeNum+2);
		if (num<image_list.length) {
			image = image_list[num]['image'];
			name = image_list[num]['name'];
		} else {
			image = false;
			name = false;
		}
		//selectDiv = addNavThumb(image, name, activeNum)
		thumbsDiv.appendChild(addNavThumb(image, name, num));
	}
	
	function appendNavThumb()
	{
		var thumbsDiv = getID('nav_thumbs');
		
		// delete firstChild
		thumbsDiv.removeChild(thumbsDiv.firstChild);
		
		// check if there's a next image
		var activeNum = Number(active_num);
		var image = false;
		var name = false;
		num = Number(activeNum+2);
		if (num<image_list.length) {
			image = image_list[num]['image'];
			name = image_list[num]['name'];	
		}
		
		// appendChild
		thumbsDiv.appendChild(addNavThumb(image, name, num));
	}
	
	function prependNavThumb()
	{
		var thumbsDiv = getID('nav_thumbs');
		
		var activeNum = Number(active_num);
		var image = false;
		var name = false;
		
		num = Number(activeNum-2);
		if (num>=1) {
			image = image_list[num]['image'];
			name = image_list[num]['name'];
		}
		//alert('active_num:'+active_num+'\nimage:'+image+'\nname:'+name);
		thumbsDiv.removeChild(thumbsDiv.lastChild);
		thumbsDivChilds = thumbsDiv.childNodes;
		
		//thumbsDiv.innerHTML = '';
		
		for (i=thumbsDiv.childNodes.length; i>=0; i--) {
			thumbsDivChilds.push(thumbsDiv.childNodes[i]);
			thumbsDiv.removeChild(thumbsDiv.childNodes[i]);
		}
		
		thumbsDiv.appendChild(addNavThumb(image, name, num));
		
		/*
		for (i=thumbsDiv.childNodes.length-1; i>=1; i--)
		{
			//alert(thumbsDiv.childNodes[i].id)
			var prevNode = thumbsDiv.childNodes[i-1].innerHTML;
			thumbsDiv.childNodes[i].innerHTML = prevNode;
		}
		
		var firstThumb = addNavThumb(image, name, num);
		thumbsDiv.childNodes[0].innerHTML = firstThumb.innerHTML;
		*/
	}
	
	
	function addNavThumb(image, name, num)
	{
		//var thumbsDiv = getID('nav_thumbs');
		var content = '';
		
		if (image) {
			
			var enc_image_path = (cache_thumbnails)
					? base_url + 'cache/' + gallery_prefix
						+ setUrlEncoding(active_id) + '/'
						+ thumbnail_prefix + setUrlEncoding(image)
					: base_url + 'galleries/'
						+ setUrlEncoding(active_id) + '/'
						+ setUrlEncoding(image);
			
			var setLink = document.createElement('a');
			setLink.href = 'javascript:;';
			setLink.onclick = function()
			{
				getImage(num, image.sq(), name.sq());
			}
			
			var setThumb = document.createElement('img');
			setThumb.src = 'libraries/thumb.display.php?max='
				+square_thumbnail_max_size
				+'&sq=1&pr=1&img='+enc_image_path
			setThumb.alt = name;
			setThumb.className = (num == active_num) ? 'sel' : 'th';
			
			setLink.appendChild(setThumb);
			
			/*
			var setLink_pre = '<a href="javascript:;" onclick="getImage('
				+"'"+num+"','"+image.sq()+"','"+name.sq()+"'"
				+')">';
			var setLink_post = '</a>';
			
			var thumbClass = (num==active_num)
				? 'sel'
				: 'th';
			
			thumbClass = 'sel';
			
			var setThumb = '<img src="libraries/thumb.display.php?max='
				+square_thumbnail_max_size
				+'&sq=1&pr=1&img='+enc_image_path
				+'" alt ="'+name+'" class="'+thumbClass+'" />';
				
			content = setLink_pre + setThumb + setLink_post;
			*/
			
			content = setLink;
			
		} else {
			var setThumb = document.createElement('img');
			setThumb.src = 'images/spacer.gif';
			setThumb.alt = '';
			setThumb.className = 'th';
			
			/*var thumbClass = 'th'
			var setThumb = '<img src="images/spinner.gif" alt ="spinner" class="'+thumbClass+'" />';*/
				
			content = setThumb;
			num = 'null';
		}
			
		var selectDiv = document.createElement('div');
		selectDiv.id = 'navthumb_'+num;
		selectDiv.className = 'navthumb';
		selectDiv.appendChild(content);
		
		//selectDiv.innerHTML = content;
		//if (content != '') selectDiv.appendChild(content);
		
		return selectDiv;
	}
	
	
	function getImage_th(num, img, name)
	{
		getImage(num, getEncoded(img,'enc'), getEncoded(name,'enc'));
	}
	
	//// image navigation scripts /////////////////////////////////////////
	
	/*** NEW NEXT/PREV IMAGES SCRIPT *******************************/
	
	function checkNavigation(num)
	{
		var n = Math.floor(num);
	
		var i_prev = ((n-1)>0) ? 'inline' : 'none';
		if (continuous_nav)
			if (((n+th_min)-1)>0) {
				i_prev = 'inline'
				go_to_prev = true
			} else {
				i_prev = 'none'
				go_to_prev = false
			}
	
		var i_next = ((n+1)<image_list.length) ? 'inline' : 'none';
		if (continuous_nav)
			if ((n+th_min)<id_files[active_id]) {
				i_next = 'inline'
				go_to_next = true
			} else {
				i_next = 'none'
				go_to_next = false
			}
	
		display('a_prev',i_prev);
		display('a_next',i_next);
		
		key_navigation = true;
	}
	
	
	function prevImage()
	{
		nav_direction_flag = 'prev';
		
		var id = active_id;
		var num = Math.floor(active_num);
		var p = ((num-1)>0) ? num-1 : false;
		
		if (p != false) {
			getImage(p, image_list[p]['image'], image_list[p]['name']);
		} else {
			if (continuous_nav) {
				var max = th_min-1;
				var min = ((th_min-th_diff)>0)
					? th_min-th_diff-1
					: 0;
				
				// if there are more thumbs
				if (compact_navigation
					&& id_files[id]>th_diff) {
					loadingNewBlock();
					getThumbs(id, min, max);
					open_first_image = 'prev';
				}
			}
		}
		if (slideshow_flag) startTimer();
	}
	
	function nextImage(flag)
	{
		if (flag) first_image_in_slideshow_viewed = 1;
		
		nav_direction_flag = 'next';
		
		var id = active_id;
		var num = Math.floor(active_num);
		var n = ((num+1)<image_list.length) ? num+1 : false;
		
		if (n != false) {
			getImage(n, image_list[n]['image'], image_list[n]['name']);
		} else {
			if (continuous_nav) {
				var min = th_max+1;
				var max = ((th_max+th_diff)>id_files[id])
					? id_files[id]
					: th_max+th_diff+1;
				
				// if there are more thumbs
				if (compact_navigation
					&& max <= id_files[id]) {
					loadingNewBlock();
					getThumbs(id, min, max);
					open_first_image = 'next';
				}
			}
		}
		if (slideshow_flag) startTimer();
	}
	
	function loadingNewBlock()
	{
		display('img','none');
		
		var load_cont = '<img id="loadimg" src="'+indicator_src+'" /> '
			+'&nbsp;<strong>'+lang["loading_thumbs"]+'</strong>...';
		
		innerhtml('image_title',load_cont);
	}
	
	
	function nextImageSlideshow()
	{
		nav_direction_flag = 'next';
		close_slideshow = false;
		
		var n = ((Math.floor(active_num)+1)<image_list.length)
			? Math.floor(active_num)+1
			: 1;
		if (first_image_in_slideshow_viewed && n==1) {
			first_image_in_slideshow_viewed = 0;
			if (go_to_next) {
				nextImage(1);
			} else {
				//alert("go_to_next:"+go_to_next)
				if (timerID) clearTimeout(timerID);
				if (timeout) clearInterval(timeout);
				active_num = 0;
				slideshow_flag = false;
				close_slideshow = true;
				closeImageWin();
			}
		} else {
			getImage(n, image_list[n]['image'], image_list[n]['name']);
		}
		
		if (!close_slideshow) startTimer();
	}
	
	function firstImageSlideshow()
	{
		first_image_in_slideshow_viewed = 1;
		
		nav_direction_flag = 'next';
		
		var n = Math.floor(active_num);
		n = (n < 1) ? 1 : n;
		
		getImage(n, image_list[n]['image'], image_list[n]['name']);
		
		startTimer();
	}
	
	
	function showTooltip(obj, name)
	{
		var ttip = getID('tooltip');
		var l = findPosX(obj)+40;
		var t = findPosY(obj)-20;
		
		ttip.style.left = findPosX(obj);
		ttip.style.top = findPosY(obj)+thumbnail_max_size+14;
		
		innerhtml('tooltip', name);
		display('tooltip','block');
	}
	
	function hideTooltip()
	{
		var ttip = getID('tooltip');
		
		display('tooltip','none');
		
		//ttip.left = 0;
		//ttip.top = 0;
		//ttip.innerhtml = '';
		
	}
	
	
	function startTimer()
	{
		clearTimeout(timerID);
		clearTimeout(timeout);
		
		tStart = new Date();
		innerhtml('time',zero(slideshow_time)+' '+lang['slideshow_seconds']);
		
		updateTimer();
		
		timeout = setTimeout("nextImageSlideshow();", 1000*slideshow_time);
	}
	
	function updateTimer()
	{
		if(timerID) {
			clearTimeout(timerID);
			clockID  = 0;
		}

		if(!tStart)
		tStart = new Date();

		var tDate = new Date();
		var tDiff = tDate.getTime() - tStart.getTime();
	
		tDate.setTime(tDiff);
	
		innerhtml('time',zero(slideshow_time-tDate.getSeconds())+' '+lang['slideshow_seconds']);
	   
		timerID = setTimeout("updateTimer()", 1000);
	}
	
	
	function startSlideshow()
	{
		nav_direction_flag = 'next';
		
		if (!slideshow_flag) {
			clearTimeout(timerID);
			clearTimeout(timeout);
			timeout = null;
			innerhtml('toggle_show',lang['slideshow_pause']+' '+lang['slideshow_name']);
			firstImageSlideshow();
			slideshow_flag = true;
			
		} else {
			if (timerID) clearTimeout(timerID);
			if (timeout) clearTimeout(timeout);
			timeout = null;
			innerhtml('toggle_show',lang['slideshow_resume']+' '+lang['slideshow_name']);
			slideshow_flag = false;
		}
		display('msc_image','block');
		display('timer','block');
	}
	
	
	function closeImageWin()
	{
		display('gallery_select_menu','inline');
		
		currentImage = new Image();
		currentImageData = new Object();
		
		active_img = '';
		
		if (slideshow_flag) {
			if (timerID) clearTimeout(timerID);
			if (timeout) clearInterval(timeout);
			active_num = 0;
			slideshow_flag = false;
		}
		getID('thumbs_ul').style.opacity=1;
		display('timer','none');
		//display('msc_image','none');
		
		if (show_permalink) setCurrentPosition();
		
		innerhtml('img','');
		innerhtml('image_title','');
		innerhtml('nav_thumbs','');
		
		if (animate_preview) {
			display('img','none');
			hideDiv('msc_image',false);
			
		} else {
			display('msc_image','none');
		}
		
		preview_open = false;
	}	
	
	function toolToggle()
	{
		var obj = getID('utilities')
		if (obj.style.display == 'block') {
			innerhtml('toolshowhide',lang['tools_show']+' '+lang['tools_title']);
			display('utilities','none');
		} else {
			innerhtml('toolshowhide',lang['tools_hide']+' '+lang['tools_title']);
			display('utilities','block');
		}
	}
	
	function setMaxSizes()
	{
		var pageSize = getPageSize();
		var imageOff = (msie) ? 220 : 180;
		
		max_image_width = Math.floor(pageSize[2] - 100);
		max_image_height = Math.floor(pageSize[3] - imageOff);
	}
	
	function showAlert()
	{
		var out = '';
		for(i=0; i<alert_message.length; i++) {
			out += '<p><b>'+lang['alert_title']+'!</b> '+alert_message[i]+'</p>';
		}
		
		innerhtml('msg',out);
		display('alert','block');
		
		for(i=0; i<alert_message.length; i++) {
			alert_message.pop();
		}
	}
	
	function checkForIE()
	{
		if (msie) {
			alert_message.push(lang['alert_browser_error']+' <small>('+agent+')</small>');
		}
	}
	
	
	/**** TRANSITION EFFECTS *****************/
	
	function hideDiv(id, callback)
	{
		transDiv = getID(id);
		transCallback = callback;
		transDiv.style.opacity = 1.0;
		trans = setInterval("hideObj();",1);
	}
	
	function hideObj()
	{
		if (transDiv.style.opacity > .1) {
			var opacity = transDiv.style.opacity*10 - 1;
			transDiv.style.opacity = opacity/10;
			
		} else {
			transDiv.style.opacity = 0;
			transDiv.style.display = 'none';
			transDiv.style.opacity = 1.0;
			
			clearInterval(trans);
			
			transCallback = undefined;
		}
	}
	
	
	function showDiv(id, callback)
	{
		transDiv = getID(id);
		transCallback = callback;
		
		if (transDiv.style.display == 'none')
			transDiv.style.display = 'block';
		
		if (transDiv.style.visibility == 'hidden')
			transDiv.style.display = 'visible';
		
		transDiv.style.opacity = 0.0;
		trans = setInterval("showObj();",1);
	}
	
	function showObj(callback)
	{
		//alert(transDiv.style.opacity)
		if (transDiv.style.opacity < .9) {
			var opacity = transDiv.style.opacity*5 + 1;
			transDiv.style.opacity = opacity/5;
			
		} else {
			transDiv.style.opacity = 1;
			//transDiv.style.display = 'none';
			//transDiv.style.opacity = 0;
			
			clearInterval(trans);
			
			transCallback = undefined;
		}
	}
	
	
	/****** HELPER FUNCTIONS *****************/
	
	function innerhtml(id, cont)
	{
		if (getID(id)) getID(id).innerHTML = cont;
	}
	
	function display(id, flag)
	{
		if (getID(id)) getID(id).style.display = flag;
	}
	
	function imageName(img)
	{
		var n = img.split('/');
		var name = n[n.length-1];
		if (!show_thumb_number) name = name.replace(/^[0-9]*[_-]/g,"");
		name = name.replace(/\_/g," ")
		name = name.replace(/\-/g," - ");
		name = name.replace(/\.[A-Za-z0-9]*$/g,"");
		
		return name;
	}
	
	function galleryName(g)
	{
		var name = g;
		if (!show_gallery_number) name = name.replace(/^[0-9]*-/g,"");
		name = name.replace(/\_/g," ")
		name = name.replace(/\-/g," - ");
		
		return name;
	}
	
	function thumbName(g)
	{
		var c = 0;
		var ds = .19;
		var name = '';
		var dw = (ds*thumbnail_max_size);
		var rows = false;
		if (rows) {
			dw = dw-1;
			for (k=0; k<g.length; k++) {
				if (c>dw) {
					name += g.charAt(k)+'<br/>';
					c = 0;
				} else {
					name += g.charAt(k);
				}
				c++;
			}
		} else {
			if (g.length>dw) name = g.substring(0,dw-4)+'&#133;'+g.substring(g.length-3,g.length);
			else name = g;
		}
		return name;
	}
	
	//// toggle image visibility until loaded
	function toggleImageContainer()
	{
		var thContDiv = getID('thumbs_ul');
		
		if (preview_mode == 1 || preview_mode == 2 ) {
			//alert(thContDiv.style.visibility)
			if (thContDiv.style.visibility == 'hidden') {
				thContDiv.style.visibility = 'visible';
			} else {
				thContDiv.style.visibility = 'hidden';
			}
		}
	}
	
	//// return number to zero-leading string
	function zero(num)
	{
		if (num < 10) num = '0'+num;
		return num;
	}
	
	//// find x position
	function findPosX(obj)
	{
		var curleft = 0;
		if (obj.offsetParent) {
			while (obj.offsetParent) {
				curleft += obj.offsetLeft
				obj = obj.offsetParent;
			}
		}
		else if (obj.x)
			curleft += obj.x;
		return curleft;
	}
	
	//// find y position
	function findPosY(obj)
	{
		var curtop = 0;
		if (obj.offsetParent) {
			while (obj.offsetParent) {
				curtop += obj.offsetTop
				obj = obj.offsetParent;
			}
		}
		else if (obj.y)
			curtop += obj.y;
		return curtop;
	}
	
	//
	// getPageSize()
	// Returns array with page width, height and window width, height
	// Core code from - quirksmode.org
	// Edit for Firefox by pHaez
	//
	function getPageSize()
	{
		
		var xScroll, yScroll;
		
		if (window.innerHeight && window.scrollMaxY) {
			xScroll = document.body.scrollWidth;
			yScroll = window.innerHeight + window.scrollMaxY;
			
		// all but Explorer Mac
		} else if (document.body.scrollHeight > document.body.offsetHeight) {
			xScroll = document.body.scrollWidth;
			yScroll = document.body.scrollHeight;
			
		// Explorer Mac...would also work in Explorer 6 Strict,
		// Mozilla and Safari
		} else {
			xScroll = document.body.offsetWidth;
			yScroll = document.body.offsetHeight;
		}
		
		var windowWidth, windowHeight;
		
		// all except Explorer
		if (self.innerHeight) {
			windowWidth = self.innerWidth;
			windowHeight = self.innerHeight;
			
		// Explorer 6 Strict Mode
		} else if (document.documentElement && document.documentElement.clientHeight) {
			windowWidth = document.documentElement.clientWidth;
			windowHeight = document.documentElement.clientHeight;
		
		// other Explorers
		} else if (document.body) {
			windowWidth = document.body.clientWidth;
			windowHeight = document.body.clientHeight;
		}	
		
		// for small pages with total height
		// less than height of the viewport
		if(yScroll < windowHeight){
			pageHeight = windowHeight;
		} else { 
			pageHeight = yScroll;
		}
	
		// for small pages with total width
		// less then width of the viewport
		if(xScroll < windowWidth){	
			pageWidth = windowWidth;
		} else {
			pageWidth = xScroll;
		}
	
		arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
		return arrayPageSize;
	}
	
	String.prototype.trim = function()
	{
		return this.replace(/^\s+|\s+$/, '');
	};
	
	String.prototype.sq = function()
	{
		return this.replace("'","\\'");
	};
	
	
	/**** UTF-8 data encode / decode (http://www.webtoolkit.info) ****/
	
	var Utf8 = {
	
		// public method for url encoding
		encode : function (string) {
			string = string.replace(/\r\n/g,"\n");
			var utftext = "";
	
			for (var n = 0; n < string.length; n++) {
				var c = string.charCodeAt(n);
				if (c < 128) {
					utftext += String.fromCharCode(c);
				}
				else if((c > 127) && (c < 2048)) {
					utftext += String.fromCharCode((c >> 6) | 192);
					utftext += String.fromCharCode((c & 63) | 128);
				}
				else {
					utftext += String.fromCharCode((c >> 12) | 224);
					utftext += String.fromCharCode(((c >> 6) & 63) | 128);
					utftext += String.fromCharCode((c & 63) | 128);
				}
			}
			return utftext;
		},
	
		// public method for url decoding
		decode : function (utftext) {
			var string = "";
			var i = 0;
			var c = c1 = c2 = 0;
	
			while ( i < utftext.length ) {
				c = utftext.charCodeAt(i);
				if (c < 128) {
					string += String.fromCharCode(c);
					i++;
				}
				else if((c > 191) && (c < 224)) {
					c2 = utftext.charCodeAt(i+1);
					string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
					i += 2;
				}
				else {
					c2 = utftext.charCodeAt(i+1);
					c3 = utftext.charCodeAt(i+2);
					string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
					i += 3;
				}
			}
			return string;
		}
	}
	
	
	/**** set url encoding to single/double ****/
	
	function setUrlEncoding(string)
	{
		var output = '';
		if (set_double_encoding) {
			output = Url.double_encode(string);
		} else {
			output = Url.encode(string);
		}
		return output;
	}
	
	function getUrlEncoding(string)
	{
		var output = '';
		if (set_double_encoding) {
			output = Url.decode(string);
		} else {
			output = unescape(string);
		}
		return output;
	}
	
	function sendEncoded(string, encoding)
	{
		var output = '';
		
		switch (encoding) {
			case "url":
				output = Url.encode(string);
				break;
			case "esc":
				output = escape(string);
				break;
			case "utf8":
				output = Utf8.encode(string);
				break;
			default:
				output = string;
				break;
		}
		return output;
	}
	
	function getEncoded(string, encoding)
	{
		var output = '';
		
		switch (encoding) {
			case "url":
				output = Url.decode(string);
				break;
			case "esc":
				output = unescape(string);
				break;
			case "utf8":
				output = Utf8.decode(string);
				break;
			default:
				output = string;
				break;
		}
		return output;
	}
	
	
	/**** URL encode / decode (http://www.webtoolkit.info) ****/
	
	var Url = {
		
		// public method for double-encoding urls
		double_encode : function (string) {
			dbl = escape( this._utf8_encode( string ) );
			return escape( this._utf8_encode( dbl ) );
		},
		
	
		// public method for url encoding
		encode : function (string) {
			return escape(this._utf8_encode(string));
		},
	
		// public method for url decoding
		decode : function (string) {
			return this._utf8_decode(unescape(string));
		},
	
		// private method for UTF-8 encoding
		_utf8_encode : function (string) {
			string = string.replace(/\r\n/g,"\n");
			var utftext = "";
	
			for (var n = 0; n < string.length; n++) {
				var c = string.charCodeAt(n);
				if (c < 128) {
					utftext += String.fromCharCode(c);
				}
				else if((c > 127) && (c < 2048)) {
					utftext += String.fromCharCode((c >> 6) | 192);
					utftext += String.fromCharCode((c & 63) | 128);
				}
				else {
					utftext += String.fromCharCode((c >> 12) | 224);
					utftext += String.fromCharCode(((c >> 6) & 63) | 128);
					utftext += String.fromCharCode((c & 63) | 128);
				}
			}
	
			return utftext;
		},
	
		// private method for UTF-8 decoding
		_utf8_decode : function (utftext) {
			var string = "";
			var i = 0;
			var c = c1 = c2 = 0;
	
			while ( i < utftext.length ) {
				c = utftext.charCodeAt(i);
				if (c < 128) {
					string += String.fromCharCode(c);
					i++;
				}
				else if((c > 191) && (c < 224)) {
					c2 = utftext.charCodeAt(i+1);
					string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
					i += 2;
				}
				else {
					c2 = utftext.charCodeAt(i+1);
					c3 = utftext.charCodeAt(i+2);
					string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
					i += 3;
				}
			}
			return string;
		}
	}
	
	/**** adding single quote escaping
	 as a method to the String Object ****/
	
	String.prototype.sq = function()
	{
		return this.replace("'","\\'")
	}
	
	
	/* convert characters */
	
	function encode_utf8(string)
	{
		return unescape(encodeURIComponent(string))
	}

	function decode_utf8(string)
	{
		return decodeURIComponent(escape(string))
	}
	
	/* private getID() method */
	function getID(obj)
	{
		return document.getElementById(obj)
	}
	
	
	//// Key Functions ////
	
	function keyNavigation(e) 
	{
		//alert(e.which)
		
		// forward (right arrow | space | down arrow)
		if ((e.type == 'keydown' && e.which == 39)
		 	|| (e.type == 'keydown' && e.which == 32)
			|| (e.type == 'keydown' && e.which == 40)) {
				if (active_img == '' || !active_img || active_img == undefined) {
					getImage(1,image_list[1]['image'],image_list[1]['name']);
				} else {
					//if (active_num < image_list.length) 
					if (go_to_next && key_navigation) {
						key_navigation = false;
						nextImage();
					}
				}
		 
		// backwards (left arrow | up arrow)
		} else if ((e.type == 'keydown' && e.which == 37)
		 		|| (e.type == 'keydown' && e.which == 38)) {
			if (go_to_prev && key_navigation) {
				key_navigation = false;
				prevImage();
			}
		
		// fullscreen (F)
		} else if (e.type == 'keydown' && e.which == 70) {
			if (!fullscreen) {
				pos_orig.l = window.pageXOffset;
				pos_orig.t = window.pageYOffset;
				
				if (parseInt(navigator.appVersion)>3) {
					if (navigator.appName.indexOf("Microsoft")!=-1) {
						pos_orig.w = document.body.offsetWidth;
						pos_orig.h = document.body.offsetHeight;
					} else { //if (navigator.appName=="Netscape") {
						pos_orig.w = window.outerWidth;
						pos_orig.h = window.outerHeight;
					}
				}
				window.moveTo(0,0);
				window.resizeTo(screen.availWidth, screen.availHeight);
				size_fullscreen = true;
				
			} else {
				pos_orig.l = (screen.availWidth-pos_orig.w)/2;
				pos_orig.t = (screen.availHeight-pos_orig.h)/2;
				window.resizeTo(pos_orig.w, pos_orig.h);
				window.moveTo(pos_orig.l,pos_orig.t);
				size_fullscreen = false;
			}
		
		// fullscreen
		} else if (e.type == 'keydown' && e.which == 27) {
			closeImageWin();
		}
	}