/* ================================================
·Ñ¸µ À̺¥Æ®
================================================ */
function xwzRollingImageTrans(imageName, thumbnailName, eventName, winName){
	this.Index = 0;
	this.ListItem = new Array(0);
	this.Name = imageName;
	this.Thumbnail = thumbnailName;
	this.tmRotate = null;
	this.nInterval = 8000;
	this.eventName = eventName;
	this.winTarget = winName;
	
	if(window.xwzRollObject == null) window.xwzRollObject = new Array(0);
	window.xwzRollObject[this.Name] = this;

	//== ÃʱâÈ­ ÇÔ¼ö
	this.install = function(){
		window.document.images[this.Name].onclick=this.goLink;
		if(this.ListItem.length == 0) return;
		this.tmRotate = setTimeout("window.xwzRollObject['" + this.Name + "'].rotateTrans()" , this.nInterval);
		var icons = document.getElementsByName(this.Thumbnail);
		for(var i = 0; i < icons.length; i++){
			if(this.eventName == 'over') icons[i].onmouseover=new Function("window.xwzRollObject['"+this.Name+"'].alterImage(" + i + ")");
			else icons[i].onmousemove=new Function("window.xwzRollObject['"+this.Name+"'].alterImage(" + i + ")");
		}
	}
	//== ÇØ´ç ¾ÆÀÌÅÛ Ãß°¡ 
	this.addItem = function(Link, ImgSrc, Icon1, Icon2 ){
		var itmX = {Link : "", ImgSrc : "", DefIcon : "", OvrIcon : ""};
		itmX.Link = Link;
		itmX.ImgSrc = ImgSrc;
		itmX.DefIcon = Icon1;
		itmX.OvrIcon = Icon2;
		this.ListItem[this.ListItem.length] = itmX;
	}
	//== ¼öµ¿ º¯°æ 
	this.alterImage = function(index){
		var icons = document.getElementsByName(this.Thumbnail);
		if(this.Index == index) return;
		if(this.ListItem[this.Index].DefIcon !="") icons[this.Index].src = this.ListItem[this.Index].DefIcon;

		this.Index = index;
		this.imgTrans();
		clearTimeout(this.tmRotate);
		this.tmRotate = null;
		this.tmRotate = setTimeout("window.xwzRollObject['" + this.Name + "'].rotateTrans()" , this.nInterval);

	}

	//== ¸µÅ© Ŭ¸¯
	this.goLink = function(){
		var name = this.getAttribute('name');
		var xwzRoll = window.xwzRollObject[name];
		clearTimeout(xwzRoll.tmRotate);
		xwzRoll.tmRotate = null;

		if(xwzRoll.winTarget == '' || xwzRoll.winTarget == null){
			window.location.href=xwzRoll.ListItem[xwzRoll.Index].Link;
		}else if(xwzRoll.winTarget.toLowerCase().indexOf("javascript") == 0){
			alert( winTarget.replace(/javascript:/gi,'') )
		}else{
			window.open(xwzRoll.ListItem[xwzRoll.Index].Link, xwzRoll.winTarget);
		}
	}

	//==
	this.rotateTrans = function(){
		var icons = document.getElementsByName(this.Thumbnail);
		var itmX = this.ListItem[this.Index];
		if(itmX.DefIcon !="") icons[this.Index].src = itmX.DefIcon;

		this.Index +=1;
		if(this.Index >= this.ListItem.length) this.Index = 0;

		this.imgTrans();
		
		clearTimeout(this.tmRotate);
		this.tmRotate = null;
		this.tmRotate = setTimeout("window.xwzRollObject['" + this.Name + "'].rotateTrans()" , this.nInterval);
	}

	//==
	this.imgTrans = function(){
		var icons = document.getElementsByName(this.Thumbnail);
		var itmX = this.ListItem[this.Index];
		if(itmX.OvrIcon !=null  && itmX.OvrIcon !="") icons[this.Index].src = itmX.OvrIcon;
		try{
			document.images[this.Name].filters[0].apply();
			document.images[this.Name].src = itmX.ImgSrc;
			document.images[this.Name].filters[0].play();
		}catch(e){
			document.images[this.Name].src = itmX.ImgSrc;
		}
	}
}