/*
* Thickbox 2.1 - jQuery plugin for displaying content in a box above the page
*
* Copyright (c) 2006, 2007 Cody Lindley (http://www.codylindley.com)
* >> modified 2007 by lbm-services.de to enable link galleries
* Licensed under the MIT License:
*   http://www.opensource.org/licenses/mit-license.php
*/

var linkurl = "" ;
homepath = ""
// var homepath = "/joomla";		 // <---   enter joomla homedir here and delete the preceding "//"


// on page load call TB_init
$(document).ready(TB_init);
// add thickbox to href elements that have a class of .thickbox
function TB_init(){
	$("a.thickbox").click(function(event){
		// stop default behaviour

		event.preventDefault();
		// remove click border
		this.blur();
		
		// get caption: either title or name attribute
		var caption = this.title || this.name || "";

		// get rel attribute for image groups
		var group = this.rel || false;
		
		linkurl = this.href;
		linkurl = linkurl.replace("index.php","index2.php");
		
		// display the box for the elements href
		TB_show(caption, linkurl, group);
	});
}

// called when the user clicks on a thickbox link
function TB_show(caption, url, rel){
	var queryString = url.match(/\?(.+)/)[1];
	var params = TB_parseQuery( queryString );

	// create iframe, overlay and box if non-existent
	if( !$("#TB_HideSelect").length ){
		$("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
		// commented out to prevent window from closing when click outside box
		// $("#TB_overlay").click(TB_remove);
	}
	
	var e=document.getElementsByTagName("object");
	for(var i=0;i<e.length;i++){
		e[i].style.visibility = 'hidden';
	}
	var e=document.getElementsByTagName("embed");
	for(var i=0;i<e.length;i++){
		e[i].style.visibility = 'hidden';
	}

	// TODO replace or check if event is already assigned
	$(window).scroll(TB_position);

	// TODO replace
	TB_overlaySize();

	// TODO create loader only once, hide and show on demand
	$("body").append("<div id='TB_load'><img src='/thickbox/images/loadingAnimation.gif' /></div>");
	TB_load_position();

	// check if a query string is involved
	var baseURL = url.match(/(.+)?/)[1] || url;

	// regex to check if a href refers to an image
	var imageURL = /\.(jpe?g|png|gif|bmp)/gi;


		//code to show html pages
		TB_dimensions();
		
		var dummy = { caption: "", url: "", html: "" };

		var prev = dummy,
		next = dummy,
		imageCount = "";

		if( rel ){
			function getInfo(image, id, label){
				return {
					caption: image.title,
					url: image.href,
					html: "<span id='TB_" + id + "'>&nbsp;&nbsp;<a href='#'>" + label + "</a></span>"
				}
			}

			// find the anchors that point to the group
			var imageGroup = $("a[@rel="+rel+"]").get();
			var foundSelf = false;

			// loop through the anchors, looking for ourself, saving information about previous and next image
			for (var i = 0; i < imageGroup.length; i++){
				var image = imageGroup[i];
				var urlTypeTemp = image.href.match(imageURL);

				// look for ourself
				if( image.href == url ){
					foundSelf = true;
					imageCount = "Page " + (i + 1) + " of "+ (imageGroup.length);
				}else{
					// when we found ourself, the current is the next image
					if( foundSelf ){
						next = getInfo(image, "next", "Next &gt;");
						// stop searching
						break;
					}else{
						// didn't find ourself yet, so this may be the one before ourself
						prev = getInfo(image, "prev", "&lt; Prev");
					}
				}
			}
		}

		urlNoQuery = url.split('TB_');
		$("#TB_window").append(
			"<div id='TB_title'>"+
				"<div id='TB_closeAjaxWindow'>"+
					"<a href='#' id='TB_closeWindowButton' title='X'><img class='closewindow' src='"+homepath+"/images/publish_x.png' border='0' /></a>"+
				"</div>"+
				"<div id='TB_ajaxWindowTitle'>"+
					caption +
					"<div id='TB_secondLine'>"+ 
						imageCount+prev.html+next.html+
					"</div>"+
				"</div>"+
			"</div>"+
			"<iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent' style='width:"+(TB_IFRAME_WIDTH)+"px;height:"+(TB_IFRAME_HEIGHT)+"px;' onload='TB_showIframe()'></iframe>"
		);	// gallery enabled
		// gallery enabled

		$("#TB_closeWindowButton").click(TB_remove);

		function buildClickHandler(image){
			return function(){
				$("#TB_window").remove();
				$("body").append("<div id='TB_window'></div>");
				TB_show(image.caption, image.url, rel);
				return false;
			};
		}
		var goPrev = buildClickHandler(prev);
		var goNext = buildClickHandler(next);
		if( prev.html ){
			$("#TB_prev").click(goPrev);
		}

		if( next.html ){
			$("#TB_next").click(goNext);
		}


		TB_position();
		if(frames['TB_iframeContent'] == undefined){
			//be nice to safari
			$("#TB_load").remove();
			$("#TB_window").css({display:"block"});
			$(document).keyup( function(e){ var key = e.keyCode; if(key == 27){TB_remove()} });
		}


	$(window).resize(TB_position);

	document.onkeyup = function(e){
		if(e == null){
			// ie
			keycode = event.keyCode;
		}else{
			// mozilla
			keycode = e.which;
		}
		if(keycode == 27){
			// close
			TB_remove();
		}
	}

}

//helper functions below

function TB_showIframe(){
	$("#TB_load").remove();
	$("#TB_window").css({display:"block"});
}

function TB_remove(){
	$("#TB_imageOff").unbind("click");
	$("#TB_overlay").unbind("click");
	$("#TB_closeWindowButton").unbind("click");
	$('#TB_window,#TB_overlay,#TB_HideSelect').remove();
	//$("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').remove();});
	$("#TB_load").remove();
	
	var e=document.getElementsByTagName("object");
	for(var i=0;i<e.length;i++){
		e[i].style.visibility = 'visible';
	}
	var e=document.getElementsByTagName("embed");
	for(var i=0;i<e.length;i++){
		e[i].style.visibility = 'visible';
	}
	return false;
}

function TB_dimensions(){
	var url = linkurl;
	var queryString = url.match(/\?(.+)/)[1];
	var params = TB_parseQuery( queryString );
	var pagesize = TB_getPageSize();
	
	TB_WIDTH = (params['width'])?(params['width']*1):800;
	TB_HEIGHT = (params['height'])?(params['height']*1):600;
	
	TB_WORK_WIDTH = TB_WIDTH + 30;
	TB_WORK_HEIGHT = TB_HEIGHT + 40;

	if (window.XMLHttpRequest && document.all){
		// IE7
		TB_WORK_HEIGHT = TB_WORK_HEIGHT + 5;
	}
	TB_WORK_WIDTH = (TB_WORK_WIDTH > (pagesize[0]-50)) ? (pagesize[0]-50) : TB_WORK_WIDTH;
	TB_WORK_HEIGHT = (TB_WORK_HEIGHT > (pagesize[1]-50)) ? (pagesize[1]-50) : TB_WORK_HEIGHT;

	TB_IFRAME_WIDTH = TB_WORK_WIDTH - 0;
	TB_IFRAME_HEIGHT = TB_WORK_HEIGHT - (30 + 1);
}

function TB_position(){
	var arrayPageScroll = TB_getPageScrollTop();
	var pagesize = TB_getPageSize();
	
	TB_dimensions();
	
	var xLeft = (arrayPageScroll[0] + (pagesize[0] - TB_WORK_WIDTH)/2);
	
	var xTop = (arrayPageScroll[1] + (pagesize[1]-TB_WORK_HEIGHT)/2);
	xTop = (xTop > 0) ? xTop : 0;
	
	var style = {width: TB_WORK_WIDTH, height: TB_WORK_HEIGHT, left: xLeft, top: xTop};
	$("#TB_window").css(style);
	var style = {width: TB_IFRAME_WIDTH, height: TB_IFRAME_HEIGHT};
	$("#TB_iframeContent").css(style);
	TB_overlaySize();
	//$("#TB_window").UnFold(850, 50);
}

function TB_overlaySize(){
	if(window.innerHeight && window.scrollMaxY || window.innerWidth && window.scrollMaxX){
		yScroll = window.innerHeight + window.scrollMaxY;
		xScroll = window.innerWidth + window.scrollMaxX;
		var deff = document.documentElement;
		var wff = (deff&&deff.clientWidth) || document.body.clientWidth || window.innerWidth || self.innerWidth;
		var hff = (deff&&deff.clientHeight) || document.body.clientHeight || window.innerHeight || self.innerHeight;
		xScroll -= (window.innerWidth - wff);
		yScroll -= (window.innerHeight - hff);
	}else if(document.body.scrollHeight > document.body.offsetHeight || document.body.scrollWidth > document.body.offsetWidth){
		// all but Explorer Mac
		yScroll = document.body.scrollHeight;
		xScroll = document.body.scrollWidth;
	}else{
		// Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		yScroll = document.body.offsetHeight;
		xScroll = document.body.offsetWidth;
	}
	$("#TB_overlay").css({"height": yScroll, "width": xScroll});
	$("#TB_HideSelect").css({"height": yScroll,"width": xScroll});
}

function TB_load_position(){
	var pagesize = TB_getPageSize();
	var arrayPageScroll = TB_getPageScrollTop();
	$("#TB_load")
	.css({left: (arrayPageScroll[0] + (pagesize[0] - 100)/2), top: (arrayPageScroll[1] + ((pagesize[1]-100)/2)) })
	.css({display:"block"});
}

function TB_parseQuery ( query ){
	// return empty object
	if( !query )
	return {};
	var params = {};

	// parse query
	var pairs = query.split(/[;&]/);
	for ( var i = 0; i < pairs.length; i++ ){
		var pair = pairs[i].split('=');
		if( !pair || pair.length != 2 )
		continue;
		// unescape both key and value, replace "+" with spaces in value
		params[unescape(pair[0])] = unescape(pair[1]).replace(/\+/g, ' ');
	}
	return params;
}

function TB_getPageScrollTop(){
	var yScrolltop;
	var xScrollleft;
	if(self.pageYOffset || self.pageXOffset){
		yScrolltop = self.pageYOffset;
		xScrollleft = self.pageXOffset;
	}else if(document.documentElement && document.documentElement.scrollTop || document.documentElement.scrollLeft ){
		// Explorer 6 Strict
		yScrolltop = document.documentElement.scrollTop;
		xScrollleft = document.documentElement.scrollLeft;
	}else if(document.body){
		// all other Explorers
		yScrolltop = document.body.scrollTop;
		xScrollleft = document.body.scrollLeft;
	}
	arrayPageScroll = new Array(xScrollleft,yScrolltop)
	return arrayPageScroll;
}

function TB_getPageSize(){
	var de = document.documentElement;
	var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
	var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;
	arrayPageSize = new Array(w,h);
	return arrayPageSize;
}