function $() {
	for (var i=0, elements=new Array(); i<arguments.length; i++){
		var element=arguments[i];
		element =
		(typeof(element)=="object") ? element :
		document.getElementById(element);
		if (arguments.length == 1) return element;
		elements.push(element);
	}
	return elements;
}
function getElementsByClass(searchClass,node,tag){
	if (node==null) node = document;
	if (tag == null) tag = '*';
	var els = node.getElementsByTagName(tag);
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for(var i=0,x=0,Element= new Array(); i<els.length; i++){
		if (pattern.test(els[i].className)) Element[x++]=els[i];
	}
	return Element;
}
function getSpecificParent(obj,parentObj){//parentObj : class or tagname or id
	var pattern = new RegExp("(^|\\s)"+parentObj+"(\\s|$)");
	do{obj = obj.parentNode;}
	while(!pattern.test(obj.className) && obj.tagName!=parentObj.toUpperCase() && obj.tagName!="BODY" && obj.id!=parentObj)
	return obj;
}




var srcAry=[];
function preloadImg(){
	var thumbnailList = getElementsByClass("thumbnailList",$("main"),"ul");
	if(thumbnailList.length==0) return false;
	for(var k=0; k<thumbnailList.length; k++){
		thumbs = thumbnailList[k].getElementsByTagName("a");
		for(var i=0,len=thumbs.length; i<len; i++){
			var c = thumbs[i].getAttributeNode("href").nodeValue;
			srcAry.push(c.slice(c.indexOf(",")+2,c.lastIndexOf("'")));
		}
	}
	srcAry.loadImg();
}
function selectImage(OBJ,IMG){
	$(OBJ).src = IMG;
}