/* rollover
--------------------------------------------------------------------*/

function rollover() {
	if (!document.getElementById) return
	
	var img = document.getElementsByTagName("img");
	
	for(i=0;i<img.length;i++){

		var src   = img[i].getAttribute("src");
		var ftype = src.substring(src.lastIndexOf("."), src.length);
		
		if(new RegExp("_n"+ ftype + "\\b").exec(src)) {
			
			img[i].onmouseover = function() {
				var curSrc   = this.getAttribute("src");
				var curFtype = curSrc.substring(curSrc.lastIndexOf("."), curSrc.length);
				this.setAttribute("src", curSrc.slice(0, -1*(curFtype.length + 2)) + "_r" + curFtype);
			}	
			
			img[i].onmouseout = function() {
				var curSrc   = this.getAttribute("src");
				var curFtype = curSrc.substring(curSrc.lastIndexOf("."), curSrc.length);
				this.setAttribute("src", curSrc.slice(0, -1*(curFtype.length + 2)) + "_n" + curFtype);
			}
			
		}
	}
}

addEvent(window, "load", rollover);



/* add event
--------------------------------------------------------------------*/

function addEvent(obj, evType, fn){
	if (obj.addEventListener){
		obj.addEventListener(evType, fn, false);
		return true;
	}
	else if (obj.attachEvent){
		var r = obj.attachEvent("on"+evType, fn);
		return r;
	}
	else {
		return false;
	}
}




/* other
--------------------------------------------------------------------*/
function show(inputData) {
var objID=document.getElementById( "layer_" + inputData );
var buttonID=document.getElementById( "category_" + inputData );
if(objID.className=='close') {
objID.style.display='block';
objID.className='open';
}else{
objID.style.display='none';
objID.className='close';
}
}