var cssdriveimagepalette={

lastxarray: [], //array containing last 8 selected colors
lastxdivs: [],

addEvent:function(targetarr, functionref, tasktype){
	if (targetarr.length>0){
		var target=targetarr.shift()
		if (target.addEventListener)
			target.addEventListener(tasktype, functionref, false)
		else if (target.attachEvent)
			target.attachEvent('on'+tasktype, function(){return functionref.call(target, window.event)})
		this.addEvent(targetarr, functionref, tasktype)
	}
},

getElementsByClass:function(targetclass){
	if (document.querySelectorAll)
		return document.querySelectorAll("."+targetclass)
	else{
		var classnameRE=new RegExp("(^|\\s+)"+targetclass+"($|\\s+)", "i") //regular expression to screen for classname
		var pieces=[]
		var alltags=document.all? document.all : document.getElementsByTagName("*")
		for (var i=0; i<alltags.length; i++){
			if (typeof alltags[i].className=="string" && alltags[i].className.search(classnameRE)!=-1)
				pieces[pieces.length]=alltags[i]
		}
		return pieces
	}
},

showcolor:function(e, mode){
	var e=e || window.event
	if (typeof e.target=="undefined")
		e.target=e.srcElement
	var selectedhex=e.target.getAttribute("title")
	if (selectedhex!=null && selectedhex!=""){ //if target element isn't a blank LI
		var targetelements=(mode=="current")? ["colorDisplay", "colorHexDisplay"] : ["selectedColorDisplay", "selectedColorHexDisplay"]
		document.getElementById(targetelements[0]).style.background=selectedhex
		document.getElementById(targetelements[1]).innerHTML="Hex: " + selectedhex
		if (mode=="selected" && e.target.parentNode.id!="lastx")
			this.savelastxcolor(selectedhex)
	}
},

savelastxcolor:function(selectedhex){
	if (this.lastxarray.join().indexOf(selectedhex)==-1){ //check for existence of selectedhex first
		this.lastxarray=[selectedhex].concat(this.lastxarray).slice(0,8)
		for (var i=0; i<this.lastxarray.length; i++){
			this.lastxdivs[i].style.backgroundColor=this.lastxarray[i]
			this.lastxdivs[i].title=this.lastxarray[i]
		}
		this.lastxdivs[0].style.borderColor="red"
	}
},

clearlist:function(){
	this.lastxarray=[]
	for (var i=0; i<this.lastxdivs.length; i++){
		this.lastxdivs[i].style.backgroundColor=""
		this.lastxdivs[i].title=""
	}
	this.lastxdivs[0].style.borderColor="black"
},

resizeimage:function(imgid){
	var img=document.getElementById(imgid)
	var dimensions=[Math.round(img.offsetWidth), Math.round(img.offsetHeight)]
	dimensions.sort(function(a,b){return a - b}) //smallest to largest
	dimensions=[250 * dimensions[0]/dimensions[1] , 250]
	if (img.offsetWidth>img.offsetHeight)
		dimensions.sort(function(a,b){return b - a})
	img.style.width=dimensions[0]+"px"
	img.style.height=dimensions[1]+"px"
},

init:function(){
	var paletteuls=this.getElementsByClass("colorpalette")
	for (var i=0; i<paletteuls.length; i++){
		this.addEvent([paletteuls[i]], function(e){
			cssdriveimagepalette.showcolor(e, "selected")
		}, "click")
		this.addEvent([paletteuls[i]], function(e){
			cssdriveimagepalette.showcolor(e, "current")
		}, "mouseover")
	}
	var lastx=document.getElementById("lastx").getElementsByTagName("div")
	for (var i=0; i<lastx.length; i++){ //catch lastx divs
		this.lastxdivs.push(lastx[i])
	}
	var loadedimg=document.getElementById("loadedimage")
	if (loadedimg){
	if (loadedimg.complete) //account for IE not firing onload
		this.resizeimage("loadedimage")
	else{
		loadedimg.onload=function(){
			cssdriveimagepalette.resizeimage("loadedimage")
		}
	}
	}
}

}