JavaScript - Gallery Isnt Working

//add thickbox to href elements that have a class of .thickbox
function TB_init(){
	$("a.thickbox").click(function(){
	var t = this.title || this.name || null;
	var g = this.rel || false;
	TB_show(t,this.href,g);
	this.blur();
	return false;
	});
	$("a.thickbox").css({display:"inline"});
}

function TB_show(caption, url, imageGroup) {//function called when the user clicks on a thickbox link
	
	var images_location = 'extensions/thickbox_2'

	try {
		if (document.getElementById("TB_HideSelect") == null) {
		$("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
		$("#TB_overlay").click(TB_remove);
		}
		
		if(caption==null){caption=""};
		
		$(window).scroll(TB_position);
 		
		TB_overlaySize();
		
		$("body").append("<div id='TB_load'><img src='"+images_location+"/loadingAnimation.gif' /></div>");
		TB_load_position();
		
		
		
	   if(url.indexOf("?")!==-1){ //If there is a query string involved
			var baseURL = url.substr(0, url.indexOf("?"));
	   }else{ 
	   		var baseURL = url;
	   }
	   var urlString = /\.jpg|\.jpeg|\.png|\.gif|\.bmp/g;
	   var urlType = baseURL.toLowerCase().match(urlString);
		
		if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){//code to show images
				
			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 = "Image " + (TB_Counter + 1) +" of "+ (TB_TempArray.length);											
						}
				}
			}

			imgPreloader = new Image();
			imgPreloader.onload = function(){		
			imgPreloader.onload = null;
				
			// Resizing large images - orginal by Christian Montoya edited by me.
			var pagesize = TB_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 id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a></div>"); 		
			
			$("#TB_closeWindowButton").click(TB_remove);
			
			if (!(TB_PrevHTML == "")) {
				function goPrev(){
					if($(document).unclick(goPrev)){$(document).unclick(goPrev)};
					$("#TB_window").remove();
					$("body").append("<div id='TB_window'></div>");
					TB_show(TB_PrevCaption, TB_PrevURL, imageGroup);
					return false;	
				}
				$("#TB_prev").click(goPrev);
			}
			
			if (!(TB_NextHTML == "")) {		
				function goNext(){
					$("#TB_window").remove();
					$("body").append("<div id='TB_window'></div>");
					TB_show(TB_NextCaption, TB_NextURL, imageGroup);				
					return false;	
				}
				$("#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_ImageOff").click(TB_remove);
			$("#TB_window").css({display:"block"}); //for safari using css instead of show
			}
	  
			imgPreloader.src = url;
		}else{//code to show html pages
			
			var queryString = url.replace(/^[^\?]+\??/,'');
			var params = TB_parseQuery( queryString );
			
			TB_WIDTH = (params['width']*1) + 30;
			TB_HEIGHT = (params['height']*1) + 40;
			ajaxContentW = TB_WIDTH - 30;
			ajaxContentH = TB_HEIGHT - 45;
			
			if(url.indexOf('TB_iframe') != -1){				
					urlNoQuery = url.split('TB_');		
					$("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a></div></div><iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' onload='TB_showIframe()'> </iframe>");
				}else{
					$("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a></div></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").css({display:"block"}); 
				}else if(url.indexOf('TB_iframe') != -1){
					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()} });
					}
				}else{
					$("#TB_ajaxContent").load(url, function(){
						TB_position();
						$("#TB_load").remove();
						$("#TB_window").css({display:"block"}); 
					});
				}
			
		}
		
		$(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();
			}	
		}
		
	} catch(e) {
		alert( e );
	}
}

//helper functions below

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

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

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 +"px", "width":xScroll +"px"});
	$("#TB_HideSelect").css({"height":yScroll +"px","width":xScroll +"px"});
}

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

function TB_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 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;
}

$(function () {
var imgContainers = $('div.tabs > div');
imgContainers.hide().filter(':first').show();
			
$('div.tabs ul.number_nav a').click(function () {
imgContainers.hide();
imgContainers.filter(this.hash).show();
$('div.tabs ul.number_nav a').removeClass('selected');
$(this).addClass('selected');
return false;
}).filter(':first').click();
});

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>gallery</title>

<!--CSS-->

<link href="style.css" rel="stylesheet" type="text/css" />

<!--JavaScript-->
<script type="text/javascript" src="jquery-1.4.2.js"></script>

<script type="text/javascript" src="code.js"></script>

</head>
<body>
<div id="gallery"><!--IMG CONTAINER START -->
<div class="tabs">

<div id="image_01">
<div class="image">
<img src="image_one.png" width="795" height="395" />
</div>
</div>

<div id="image_02" >
<div class="image">
<img src="image_two.png" width="795" height="395" />
</div>
</div>

<div id="image_03">
<div class="image">
<img src="and_so_on.png" width="795" height="395" />
</div>
</div>


<ul class="number_nav">
<li><a href="#image_01">01</a></li>
<li><a href="#image_02">02</a></li>
<li><a href="#image_03">03</a></li>
</ul>

<ul class="prev_next_nav">
<li><a href="#">Previous</a></li> 
/ <li><a href="#">Next</a></li>
</ul>
</div>
</div>


</body>

</html>

<script type="text/javascript">
jQuery(document).ready(function(){
 
  $("a#single_image").fancybox({
		'transitionIn'	:	'elastic',
		'transitionOut'	:	'elastic',
		'speedIn'		:	600, 
		'speedOut'		:	200, 
		'overlayShow'	:	false
	});

});

</script>
</head>

<body>
<div class="hidden">
	<script type="text/javascript">
$(function() {
$(".image").click(function() {
var image = $(this).attr("rel");
var large = $(this).attr("title");
$('#image').hide();
$('#image').fadeIn('slow');
$('#image').html('<a href="' + large + '" id="single_image"><img src="' + image + '"/></a>');
return false;
    });
});
	</script>

#portfolioSlider

#portfolioSlider

<div id="middle4">
    <div class="videobox" style="height: 360px; overflow-y: scroll;">
	<ul>
		<li><a href="http://www.youtube.com/watch?v=iFGEHtqNZis">TRS 50X35</a></li>
		<li><a href="http://www.youtube.com/watch?v=9CaN2KBYpo8">98X104 Automobile Shredder</a></li>
		<li><a href="http://www.youtube.com/watch?v=BWHXX6u3tVk">60x60 Aluminum</a></li>
		<li><a href="http://www.youtube.com/watch?v=ZiWDKtdfqWQ">60X60 System</a></li>
	        <li><a href="http://www.youtube.com/watch?v=VMbbXcFju9E">Portable Shredding System</a></li>
		<li><a href="http://www.youtube.com/watch?v=WEn5xtJwtu4">60X85 System</a></li>
	        <li><a href="http://www.youtube.com/watch?v=1cOxYQB5icg">60X60 White Goods</a></li>
			      
	</ul>
 </div>

</div>

// Videobox object
VideoBox = Class.create();
VideoBox.prototype = {
	// Initialize object.
	initialize: function(index, item) {
		this.index = index;
		this.item = item;
		this.item.addClassName('videoboxjs');
		this.list = this.item.getElementsBySelector('ul')[0];
		// Create div.bigvideo and add it just before the ul.
		this.bigvideo = document.createElement('div');
		Element.addClassName(this.bigvideo, 'bigvideo');
		this.item.insertBefore(this.bigvideo, this.list);
		// Create array of videothumbs.
		this.thumbs = new Array;
		// Opera 9 doesn't like 'li a' in getElementsBySelector, so you
		// have to break it apart.
		var links = this.item.getElementsBySelector('li');
		for (var i=0; i < links.length; i++) {
			this.thumbs[i] = new VideoThumb(index, i, links[i].getElementsBySelector('a')[0]);
		}
		// Load up the first video.
		this.swap(0);
	},
	// Replace existing video with new one.
	swap: function(index) {
		// IE 6 won't show the video unless something else is in the box.
		// I chose to add a <br /> which I hide via CSS.
		this.bigvideo.innerHTML = '<br /><object width="425" height="350"><param name="movie" value="' + this.thumbs[index].video + '"></param><param name="wmode" value="transparent"></param><embed src="' + this.thumbs[index].video + '" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed></object>';
		// Deselect all the thumbnails.
		this.thumbs.invoke('deselect');
		// Select the current thumbnail.
		this.thumbs[index].select();
	}
};

// Videothumb object
VideoThumb = Class.create();
VideoThumb.prototype = {
	// Initialize object.
	initialize: function(boxindex, index, link) {
		this.boxindex = boxindex;
		this.index = index;
		this.item = link;
		this.href = this.item.getAttribute('href');
		// Extract the v querystring value from the href. Youtube uses this
		// value for everything.
		this.videocode = this.href.toQueryParams().v;
		// Direct link to the video for use in the object/embed
		this.video = 'http://www.youtube.com/v/' + this.videocode;
		// Create thumbnail image and append it inside the list item
		var img = document.createElement('img');
		img.src = 'http://img.youtube.com/vi/' + this.videocode + '/default.jpg';
		img.alt = this.item.innerHTML;
		img.title = this.item.innerHTML;
		this.item.innerHTML = "";
		this.item.appendChild(img);
		// Observe the click event.
		Event.observe(this.item, 'click', this.swap.bindAsEventListener(this));
	},
	swap: function(evt) {
		// Call the swap method of the parent videobox with the thumbnail
		// thumbnail index as a parameter.
		aVB[this.boxindex].swap(this.index);
		// Stop the event so the browser doesn't follow the link.
		if (evt) {
			Event.stop(evt);
		}
	},
	select: function() {
		this.item.addClassName('current');
	},
	deselect: function() {
		this.item.removeClassName('current');
	}
};

// Don't do anything if we're using Opera 8 or earlier.
if (!Prototype.Browser.Opera || (Prototype.Browser.Opera && navigator.userAgent.toLowerCase().charAt(navigator.userAgent.toLowerCase().indexOf('opera') + 6) > 8)) {
	// Create array of videoboxes so you can have more than one on a page.
	var aVB = new Array;
	$$('div.videobox').each ( function(videobox, index) {
		aVB[index] = new VideoBox(index, videobox);
	});
}