/*
 * Thickbox 3.1 - One Box To Rule Them All.
 * By Cody Lindley (http://www.codylindley.com)
 * Copyright (c) 2007 cody lindley
 * Licensed under the MIT License: http://www.opensource.org/licenses/mit-license.php
 
 * This version modified by thoppe http://www.tomhoppe.com to allow for larger image handling, click navigation, and better ui

 * Image Viewer 1.0.0
 * Modified by All Web Promotion http://www.allwebpromotion.com Sep 2008.
 * Eliminate previous and next hover links.
 * Invoking:
       $(document).ready(function(){   
	       tb_init('a.iviewer', "/images/loading.gif", "/images/close.gif");
       });
*/

var tb_imgloader, tb_imgCloseSrc;

// add viewer elements that have a class of .iviewer
function tb_init (domChunk, imgLoaderSrc, imgCloseSrc) {
	if (!imgLoaderSrc)
		{ imgLoaderSrc = "/allwebpromotion/images/loading.gif"; } /* default value */
	tb_imgCloseSrc = imgCloseSrc;
	if (!tb_imgCloseSrc)
		{ tb_imgCloseSrc = "/allwebpromotion/images/close.gif"; } /* default value */
	tb_imgloader = new Image();
	tb_imgloader.src = imgLoaderSrc;
	$(domChunk).click(function(){
		//var t = this.title || this.name || null;
		var t = $(this).find('img').attr('title') || this.name || null;
		var a = this.href || this.alt;
		var g = this.rel || false;
		tb_show(t, a, g);
		this.blur();
		return false;
	});
}

function tb_show (caption, url, imageGroup) {

	try {

		if (document.getElementById("TB_overlay") === null) {
			$("body").append("<div id='TB_overlay'></div><div id='TB_window'></div>");
			$("#TB_overlay").bgiframe();
			$("#TB_overlay").click(tb_remove);
		}
		
		if (tb_detectMacXFF()) {
			$("#TB_overlay").addClass("TB_overlayMacFFBGHack"); //use png overlay so hide flash
		} else {
			$("#TB_overlay").addClass("TB_overlayBG"); //use background and opacity
		}

		if (caption === null)
			{ caption = ""; }
		$("body").append("<div id='TB_load'><img src='"+tb_imgloader.src+"' /></div>"); //add loader to the page
		$('#TB_load').show();//show loader
		
		var baseURL;
		if (url.indexOf("?")!==-1) { //ff there is a query string involved
			baseURL = url.substr(0, url.indexOf("?"));
		} else { 
			baseURL = url;
		}
	   
		var urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$/;
		var urlType = baseURL.toLowerCase().match(urlString);

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

			TB_PrevCaption = "";
			TB_PrevURL = "";
			TB_PrevHTML = "";
			TB_NextCaption = "";
			TB_NextURL = "";
			TB_NextHTML = "";
			TB_imageCount = "";
			TB_FoundURL = false;

			if (imageGroup) {

				TB_TempArray = $("a[@rel="+imageGroup+"]").get();
				for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML === "")); TB_Counter++) {
					var urlTypeTemp = TB_TempArray[TB_Counter].href.toLowerCase().match(urlString);
					if (!(TB_TempArray[TB_Counter].href == url)) {						
						if (TB_FoundURL) {
							TB_NextCaption = TB_TempArray[TB_Counter].title;
							TB_NextURL = TB_TempArray[TB_Counter].href;
							TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'>Next &gt;</a></span>";
						} else {
							TB_PrevCaption = TB_TempArray[TB_Counter].title;
							TB_PrevURL = TB_TempArray[TB_Counter].href;
							TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'>&lt; Prev</a></span>";
						}
					} else {
						TB_FoundURL = true;
						TB_imageCount = "&nbsp;&nbsp;Image " + (TB_Counter + 1) +" of "+ (TB_TempArray.length);											
					}
				}
			}

			imgPreloader = new Image();

			imgPreloader.onload = function() {

				imgPreloader.onload = null;
			
				var imageWidth = imgPreloader.width;
				var imageHeight = imgPreloader.height;
				TB_WIDTH = imageWidth + 34;
				TB_HEIGHT = imageHeight + 60;
				captionInsert = "";
			
				if (caption)
					{captionInsert = "<div id='TB_caption'>" + caption + "</div>";}

				$("#TB_window").hide();

				/*$("#TB_window").append("<div id='TB_secondLine'>" + TB_PrevHTML + TB_imageCount + TB_NextHTML + "</div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>click to close</a> or Esc Key</div><img class='TB_Image' id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/><div class='navText' id='closeText' style='left:"+(imageWidth-58)+"px'>Close</div><div class='navText' id='prevText'>Previous</div><div class='navText' id='nextText' style='left:"+(imageWidth-58)+"px'>Next</div>"+captionInsert);*/

				$("#TB_window").append("<div id='TB_navbox'>" + TB_PrevHTML + TB_imageCount + TB_NextHTML + "</div><div id='TB_closebox'><a href='#' id='TB_closeboxButton' title='Close'><img id='TB_closeImage' alt='close' src='"+tb_imgCloseSrc+"' /></a></div><img class='TB_Image' id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/>"+captionInsert);
				$("#TB_window").fadeIn("fast");
				$("#TB_closeboxButton").click(tb_remove);
			
				function goNext() {
					$("#TB_window").remove();
					$("body").append("<div id='TB_window'></div>");
					tb_show(TB_NextCaption, TB_NextURL, imageGroup);	
					return false;	
				}

				function goPrev() {
					if ($(document).unbind("click", goPrev))
						{ $(document).unbind("click", goPrev); }
					$("#TB_window").remove();
					$("body").append("<div id='TB_window'></div>");
					tb_show(TB_PrevCaption, TB_PrevURL, imageGroup);
					return false;	
				}

				if ((!(TB_PrevHTML == "")) && (imageGroup)) {
					$("#TB_prev").click(goPrev);
				}
				if ((!(TB_NextHTML == "")) && (imageGroup)) {		
					$("#TB_next").click(goNext);
				}

				document.onkeydown = function(e) { 	
					if (e == null) { // ie
						keycode = event.keyCode;
					} else { // mozilla
						keycode = e.which;
					}
					if (keycode == 27) { // close
						tb_remove();
					} else if (keycode == 190) { // display previous image
						if (!(TB_NextHTML == "")) {
							document.onkeydown = "";
							goNext();
						}
					} else if (keycode == 188) { // display next image
						if (!(TB_PrevHTML == "")) {
							document.onkeydown = "";
							goPrev();
						}
					}	
				};

				tb_position();
				$("#TB_load").remove();			
				$("#TB_window").css({display:"block"}); //for safari using css instead of show

			}; /* end imgPreloader.onload = function() */

			imgPreloader.src = url;

		} // end if (urlType)

	} catch(e) {
		// no action
	}
}

/* utility functions */

function tb_remove() {
 	$("#TB_imageOff").unbind("click");
	$("#TB_closeboxButton").unbind("click");
	$("#TB_window").fadeOut("fast",function(){
		$('.bgiframe', '#TB_overlay').remove();
		$('#TB_window,#TB_overlay,#TB_HideSelect').trigger("unload").unbind().remove();
	});
	$("#TB_load").remove();
	if (typeof document.body.style.maxHeight == "undefined") { // if IE6
		$("body","html").css({height: "auto", width: "auto"});
		$("html").css("overflow","");
	}
	document.onkeydown = "";
	document.onkeyup = "";
	return false;
}

function tb_position () {
	var de = document.documentElement;
	/*var pagew = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
	var pageh = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;*/
	if (de&&de.clientWidth < TB_WIDTH) {
		$("#TB_window").css({left: '20px', width: TB_WIDTH + 'px', marginRight:'20px'});
	} else {
		$("#TB_window").css({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
	}
	if (de&&de.clientHeight < TB_HEIGHT) {
		$("#TB_window").css({top: (document.documentElement.scrollTop + 20) + 'px'});
	} else {
		$("#TB_window").css({top: parseInt(document.documentElement.scrollTop + ((de.clientHeight - TB_HEIGHT) / 2)) + 'px'});
	}
}

function tb_detectMacXFF () {
  var userAgent = navigator.userAgent.toLowerCase();
  if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
    return true;
  }
}