/*
 * Thickbox 1.2 - One box to rule them all.
 * By Cody Lindley (http://www.codylindley.com)
 * Under an Attribution, Share Alike License
 * Thickbox is built on top of the very light weight jquery library.
 */

//on page load call TB_init
$(document).ready(TB_init);

//add thickbox to href elements that have a class of .thickbox
function TB_init(){
	$("img.lightbox").each(function(){
		// TODO: use a regular expression for more precise matching
		src = this.src.substr(0, this.src.indexOf('&'));
		$(this).wrap('<a class="thickbox" target="image" href="'+src+'" title="'+this.title+'"></a>');
	});

	$("a.thickbox").click(function(){
	var t = this.title || this.name || this.href || null;
	TB_show(t,this.href);
	this.blur();
	return false;
	});
}

function TB_show(caption, url) {//function called when the user clicks on a thickbox link
	try {

		$("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
		$("#TB_overlay").click(TB_remove);
		$(window).scroll(TB_position);

		$("#TB_HideSelect").css({display:"block"});
		TB_overlaySize();

		$("body").append("<div id='TB_load'><img src='/images/circle_animation.gif' /></div>");
		TB_load_position();

		var urlString = /\.jpg|\.jpeg|\.png|\.gif|\.html|\.htm|\.php|\.cfm|\.asp|\.aspx|\.jsp|\.jst|\.rb|\.txt/g;

		// match the extension, not the full url
		extension = url.substr(url.lastIndexOf('.'), url.length).toLowerCase();
		var urlType = extension.match(urlString);

		if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif'){//code to show images

			var imgPreloader = new Image();
			imgPreloader.onload = function(){

			imgPreloader.onload = null;

			// Resizing large images added by Christian Montoya
			var pagesize = getPageSize();
			var x = pagesize[0] - 150;
			var y = pagesize[1] - 150;
			var imageWidth = imgPreloader.width;
			var imageHeight = imgPreloader.height;
			if (imageWidth > x) {
				imageHeight = imageHeight * (x / imageWidth);
				imageWidth = x;
				if (imageHeight > y) {
					imageWidth = imageWidth * (y / imageHeight);
					imageHeight = y;
				}
			} else if (imageHeight > y) {
				imageWidth = imageWidth * (y / imageHeight);
				imageHeight = y;
				if (imageWidth > x) {
					imageHeight = imageHeight * (x / imageWidth);
					imageWidth = x;
				}
			}
			// End Resizing

			TB_WIDTH = imageWidth + 30;
			TB_HEIGHT = imageHeight + 60;
			$("#TB_window").append("<a href='' id='TB_ImageOff' title='Close'><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>"
								 + "<div id='TB_caption'>"+caption+"</div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton'>close</a></div>");
			$("#TB_closeWindowButton").click(TB_remove);
			TB_position();
			$("#TB_load").remove();
			$("#TB_ImageOff").click(TB_remove);
			$("#TB_window").show();
			}

			imgPreloader.src = url;
		}

		if(urlType==null||urlType=='.htm'||urlType=='.html'||urlType=='.php'||urlType=='.asp'||urlType=='.aspx'||urlType=='.jsp'||urlType=='.jst'||urlType=='.rb'||urlType=='.txt'||urlType=='.cfm' || (url.indexOf('TB_inline') != -1)){//code to show html pages

			var queryString = url.replace(/^[^\?]+\??/,'');
			var params = parseQuery( queryString );

			TB_WIDTH = (params['width']*1) + 30;
			TB_HEIGHT = (params['height']*1) + 40;
			ajaxContentW = TB_WIDTH - 30;
			ajaxContentH = TB_HEIGHT - 45;
			$("#TB_window").append("<div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");
			$("#TB_closeWindowButton").click(TB_remove);

				if(url.indexOf('TB_inline') != -1){
					$("#TB_ajaxContent").html($('#' + params['inlineId']).html());
					TB_position();
					$("#TB_load").remove();
					$("#TB_window").fadeIn("fast");
				}else{
					TB_WIDTH = 800;
					TB_HEIGHT = 500;
					$("#TB_ajaxContent").html('<iframe src="'+url+'" />');
					TB_position();
					$("#TB_load").remove();
					$("#TB_window").fadeIn("fast");
				}

		}

		$(window).resize(TB_position);

	} catch(e) {
		alert( e );
	}
}

//helper functions below

function TB_remove() {
	$("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').remove();});
	$("#TB_load").remove();
	return false;
}

function TB_position() {
	var pagesize = getPageSize();
	var arrayPageScroll = getPageScrollTop();

	$("#TB_window").css({width:TB_WIDTH+"px",height:TB_HEIGHT+"px",
	left: ((pagesize[0] - TB_WIDTH)/2)+"px", top: (arrayPageScroll[1] + ((pagesize[1]-TB_HEIGHT)/2))+"px" });
	TB_overlaySize();

}

function TB_overlaySize(){
	if (window.innerHeight && window.scrollMaxY) {
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		yScroll = document.body.offsetHeight;
	}
	$("#TB_overlay").css("height",yScroll +"px");
}

function TB_load_position() {
	var pagesize = getPageSize();
	var arrayPageScroll = getPageScrollTop();

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

function parseQuery ( query ) {
   var Params = new Object ();
   if ( ! query ) return Params; // return empty object
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
	  var KeyVal = Pairs[i].split('=');
	  if ( ! KeyVal || KeyVal.length != 2 ) continue;
	  var key = unescape( KeyVal[0] );
	  var val = unescape( KeyVal[1] );
	  val = val.replace(/\+/g, ' ');
	  Params[key] = val;
   }
   return Params;
}


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

function 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;
}