function addDOMLoadEvent(f){if(!window.__ADLE){var n=function(){if(arguments.callee.d)return;arguments.callee.d=true;if(window.__ADLET){clearInterval(window.__ADLET);window.__ADLET=null}for(var i=0;i<window.__ADLE.length;i++){window.__ADLE[i]()}window.__ADLE=null};if(document.addEventListener)document.addEventListener("DOMContentLoaded",n,false);/*@cc_on @*//*@if (@_win32)document.write("<scr"+"ipt id=__ie_onload defer src=//0><\/scr"+"ipt>");var s=document.getElementById("__ie_onload");s.onreadystatechange=function(){if(this.readyState=="complete")n()};/*@end @*/if(/WebKit/i.test(navigator.userAgent)){window.__ADLET=setInterval(function(){if(/loaded|complete/.test(document.readyState)){n()}},10)}window.onload=n;window.__ADLE=[]}window.__ADLE.push(f)}




function getElementsByClass(searchClass,node,tag) {

	var classElements = new Array();

	if ( node == null )

		node = document;

	if ( tag == null )

		tag = '*';

	var els = node.getElementsByTagName(tag);

	var elsLen = els.length;

	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");

	for (i = 0, j = 0; i < elsLen; i++) {

		if ( pattern.test(els[i].className) ) {

			classElements[j] = els[i];

			j++;

		}

	}

	return classElements;

 }
 
 
 function previewToggler () {
 	var preview_item = getElementsByClass('preview_item',null,'div'); 
	if(preview_item.length) {
		for(i=0; i<preview_item.length; i++) {
			preview_item[i].onmouseover = function () {
				for(x=0; x<preview_item.length; x++) {
					preview_item[x].removeAttribute('id');
				}
				this.setAttribute('id','opened_item');
			}
			
		}
	}
 }
 
 
  addDOMLoadEvent(previewToggler);