function gid(id){
var d=document
if(d.getElementById){return d.getElementById(id);}
else if(d.all){return d.all[id];}
else if(d.layers){return d.layers[id];}
return null;
}
function gids(id){return gid(id).style;}

function elemOk(id) {
gids(id).color="darkblue"
gids(id).backgroundColor="#ffffe0"
}
function elemFail( id ) {
gids(id).color="black"
gids(id).backgroundColor="#ffa0a0"
}
function elemWait( id ) {
gids(id).color="green"
gids(id).backgroundColor="#e0e0e0"
}

function tag_value( xml, tag ) {
try{
	if (document.all){return xml.responseXML.getElementsByTagName(tag)[0].text;}
	else{ return xml.responseXML.getElementsByTagName(tag)[0].textContent; }
}catch(e){ return "";}
}
function tag_text( val ) {
try{
	if (document.all){return val[0].text;}
	else{ return val[0].textContent; }
}catch(e){ return "";}
}

function AJAX() {
    this._call = Math.random();
    this._method = "GET";
    this._vars = null;
    if(window.XMLHttpRequest) { // Mozilla, Safari, etc.
        this._request = new XMLHttpRequest();
    } else if (window.ActiveXObject) { // IE
        try {
            this._request = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
                this._request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {
                alert('Failed to create');
            }
        }
    }
}

AJAX.prototype.execute = function(url,parser) {
    var xml = this._request;
    this._call++;
    xml.open(this._method, url, true);
    xml.setRequestHeader('Content-Type', 'text/xml');
    var readystate = function() {
        try {
            if((xml.readyState == 4) && (xml.status == 200)) {
                parser(xml);
                xml.onreadystatechange = function(){};
                xml = null;
            }
        } catch(e) {
            // alert(e);
        }
    }
    this._request.onreadystatechange = readystate;
    this._request.send(this._vars);
}
AJAX.prototype.get = function(url,parser) {
    var xml = this._request;
    this._call++;
    xml.open(this._method, url, true);
    xml.setRequestHeader('Content-Type', 'text/html');
    var readystate = function() {
        try {
            if((xml.readyState == 4) && (xml.status == 200)) {
                parser(xml);
                xml.onreadystatechange = function(){};
                xml = null;
            }
        } catch(e) {}
    }
    this._request.onreadystatechange = readystate;
    this._request.send(this._vars);
}
function htmlget(url,divname){
	var req=new AJAX();
	req.get(url,function(t){try{gid(divname).innerHTML=t.responseText;}catch(e){gid(divname).innerHTML=e;}});
}
function cancel_popunder() {
	gid("popunder").style.visibility="hidden"; 
	gid("bk").style.visibility="hidden";
}

function reduce_param( form ) {
	form.style.display = "none";
	for ( i = 0; i < form.length; ) {
		if ( form.elements[ i ].name != "" 
			&& ( form.elements[ i ].name == "pg" || form.elements[ i ].value == "" ) ) {
			try {
				var el = form.elements[ i ];			
				el.parentNode.removeChild( el );
				i --;
			} catch( e ) {
				alert( e );
			}
		}
		i ++;
	}
	return true;
}

function switchNarrow() {
	el = gid('narrowbyprice');
	if( el.style.display == 'none' ) el.style.display='block';
	else el.style.display='none';
}

function roundTo(inputNum, precision){
	var guide = Math.pow(10, precision);
	var inputnum = ( Math.round( inputNum * guide) / guide );
	var numString = inputNum.toString() + "";
	if ( numString.search(/\./) < 0 ) {
		numString += ".";	
		for ( var j =0; j<precision; j++ ) numString += "0";
	}
	var afterDecimal = numString.substring(numString.search(/\./) + 1);
	if ( afterDecimal.length > precision ) {
		return numString.substring( 0, numString.search(/\./) + 1 + precision )
	}
	while (afterDecimal.length < precision) {
		afterDecimal += "0";
		numString += "0";
	}
	return (numString);
}

var thumbnailviewer = {
	enableTitle: true, //Should "title" attribute of link be used as description?
	enableAnimation: true, //Enable fading animation?
	//Define HTML for footer interface
	definefooter: '<div class="footerbar">CLOSE <big>&times;</big></div>', 
	//Define HTML for "loading" div
	defineLoading: '<img src="/g/c/loading.gif" /> Loading Image...', 

/////////////No need to edit beyond here/////////////////////////
	scrollbarwidth: 16,
	opacitystring: 'filter:progid:DXImageTransform.Microsoft.alpha(opacity=10); -moz-opacity: 0.1; opacity: 0.1',
	targetlinks:[], //Array to hold links with rel="thumbnail"

createthumbBox:function(){
	//write out HTML for Image Thumbnail Viewer plus loading div
	document.write('<div style="visibility: hidden"  id="thumbBox" onClick="thumbnailviewer.closeit()"><div id="thumbImage"></div>'+this.definefooter+'</div>')
	document.write('<div style="visibility: hidden" id="thumbLoading">'+this.defineLoading+'</div>')
	this.thumbBox=document.getElementById("thumbBox")
	//Reference div that holds the shown image
	this.thumbImage=document.getElementById("thumbImage") 
	//Reference "loading" div that will be shown while image is fetched
	this.thumbLoading=document.getElementById("thumbLoading")
	//create reference to common "body" across doctypes 
	this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body 
},

centerDiv:function(divobj){ //Centers a div element on the page
	var ie=document.all && !window.opera
	var dom=document.getElementById
	var scroll_top=(ie)? this.standardbody.scrollTop : window.pageYOffset
	var scroll_left=(ie)? this.standardbody.scrollLeft : window.pageXOffset
	var docwidth=(ie)? this.standardbody.clientWidth : window.innerWidth-this.scrollbarwidth
	var docheight=(ie)? this.standardbody.clientHeight: window.innerHeight
	var docheightcomplete=(this.standardbody.offsetHeight>this.standardbody.scrollHeight)? this.	standardbody.offsetHeight : this.standardbody.scrollHeight //Full scroll height of document
	var objwidth=divobj.offsetWidth //width of div element
	var objheight=divobj.offsetHeight //height of div element
	var topposition=(docheight>objheight)? scroll_top+docheight/2-objheight/2+"px" : scroll_top+	10+"px" //Vertical position of div element: Either centered, or if element height larger than viewpoint height, 10px from top of viewpoint
	divobj.style.left=docwidth/2-objwidth/2+"px" //Center div element horizontally
	divobj.style.top=Math.floor(parseInt(topposition))+"px"
	divobj.style.visibility="visible";
},

showthumbBox:function(){ //Show ThumbBox div
	this.centerDiv(this.thumbBox)
	if (this.enableAnimation){ //If fading animation enabled
		this.currentopacity=0.1 //Starting opacity value
		this.opacitytimer=setInterval("thumbnailviewer.opacityanimation()", 20)
		if( gid('sel_quantity') )
			gid('sel_quantity').style.visibility = 'hidden';
		if( gid('sel_variations') )
		gid('sel_variations').style.visibility = 'hidden';
	}
},


loadimage:function(link){ 
	// Load image function that gets attached to each link on the page with rel="thumbnail"
	if (this.thumbBox.style.visibility=="visible") //if thumbox is visible on the page already
	this.closeit() //Hide it first (not doing so causes triggers some positioning bug in Firefox
	// Construct HTML for shown image
	var imageHTML='<img src="'+link.getAttribute("href")+'" style="'+this.opacitystring+'" />' 
	
	//if (this.enableTitle && link.getAttribute("title")) 
	//Use title attr of the link as description?
	//imageHTML+='<br />'+link.getAttribute("title")
	this.centerDiv(this.thumbLoading) 
	//Center and display "loading" div while we set up the image to be shown
	this.thumbImage.innerHTML=imageHTML 
	//Populate thumbImage div with shown image's HTML (while still hidden)
	this.featureImage=this.thumbImage.getElementsByTagName("img")[0] 
	//Reference shown image itself
	
	this.featureImage.onload=function(){ //When target image has completely loaded
		thumbnailviewer.thumbLoading.style.visibility="hidden" //Hide "loading" div
		thumbnailviewer.showthumbBox() //Display "thumbbox" div to the world!
	}
	if (document.all && !window.createPopup) 
		// Target IE5.0 browsers only. Address IE image cache not 
		// firing onload bug: panoramio.com/blog/onload-event/
		this.featureImage.src=link.getAttribute("href")
		
	this.featureImage.onerror=function(){ 
		//If an error has occurred while loading the image to show
		//Hide "loading" div, game over
		thumbnailviewer.thumbLoading.style.visibility="hidden" 
	}
},

setimgopacity:function(value){ 
	// Sets the opacity of "thumbimage" div per the passed 
	// in value setting (0 to 1 and in between)
	var targetobject=this.featureImage
	if (targetobject.filters && targetobject.filters[0]){ //IE syntax
		if (typeof targetobject.filters[0].opacity=="number") //IE6
			targetobject.filters[0].opacity=value*100
		else //IE 5.5
			targetobject.style.filter="alpha(opacity="+value*100+")"
	} else if (typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
		targetobject.style.MozOpacity=value
	else if (typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
		targetobject.style.opacity=value
	else //Non of the above, stop opacity animation
		this.stopanimation()
},

opacityanimation:function(){ //Gradually increase opacity function
	this.setimgopacity(this.currentopacity)
	this.currentopacity+=0.1
	if (this.currentopacity>1)
	this.stopanimation()
},

stopanimation:function(){
	if (typeof this.opacitytimer!="undefined") clearInterval(this.opacitytimer)
},

closeit:function(){ //Close "thumbbox" div function
	this.stopanimation()
	this.thumbBox.style.visibility="hidden";
	if( gid('sel_quantity') )
		gid('sel_quantity').style.visibility = 'visible';
	if( gid('sel_variations') )
		gid('sel_variations').style.visibility	= 'visible';
	this.thumbImage.innerHTML=""
	this.thumbBox.style.left="-2000px"
	this.thumbBox.style.top="-2000px"
},

cleanup:function(){ //Clean up routine on page unload
	this.thumbLoading=null
	if (this.featureImage) this.featureImage.onload=null
	this.featureImage=null
	this.thumbImage=null
	for (var i=0; i<this.targetlinks.length; i++) this.targetlinks[i].onclick=null
	this.thumbBox=null
},

dotask:function(target, functionref, tasktype){ 
	//assign a function to execute to an event handler (ie: onunload)
	var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
	if (target.addEventListener)
		target.addEventListener(tasktype, functionref, false)
	else if (target.attachEvent)
		target.attachEvent(tasktype, functionref)
},

init:function(){ //Initialize thumbnail viewer script by scanning page and attaching appropriate function to links with rel="thumbnail"
	if (!this.enableAnimation)
		this.opacitystring=""

	var pagelinks=document.getElementsByTagName("a")
	for (var i=0; i<pagelinks.length; i++){ //BEGIN FOR LOOP
	if (pagelinks[i].getAttribute("rel") && pagelinks[i].getAttribute("rel")=="thumbnail"){ 
		// Begin if statement
		pagelinks[i].onclick=function(){
		//Stop any currently running fade animation on "thumbbox" div before proceeding
			thumbnailviewer.stopanimation() 
			thumbnailviewer.loadimage(this) //Load image
			return false
		}
	this.targetlinks[this.targetlinks.length]=pagelinks[i] //store reference to target link
	} //end if statement

	} //END FOR LOOP

	//Reposition "thumbbox" div when page is resized
	this.dotask(window, function(){
		if (thumbnailviewer.thumbBox.style.visibility=="visible") 
			thumbnailviewer.centerDiv(thumbnailviewer.thumbBox)
		}, "resize")
} //END init() function

}

thumbnailviewer.createthumbBox() //Output HTML for the image thumbnail viewer
thumbnailviewer.dotask(window, function(){thumbnailviewer.init()}, "load") //Initialize script on page load
thumbnailviewer.dotask(window, function(){thumbnailviewer.cleanup()}, "unload")