var divClass = new Array();
	function $(id) {
		return document.getElementById(id);
	}
	function getByTag(obj, tag) {
		if('undefined' == typeof(obj.tagName)) {
			return false;
		}
		if(obj.tagName == tag) {
			divClass[divClass.length] = obj;
			return ;
		}
		if(obj.hasChildNodes()) {
			var firstNode = obj.firstChild;
			getByTag(firstNode, tag);
			while(firstNode = firstNode.nextSibling) {
				getByTag(firstNode, tag);
			}
		}
	}
	getByTag($('Imgzoom'), 'LI');
	var divli = divClass;
	for(var i in divli) {
		divClass = new Array();
		getByTag(divli[i], 'IMG');
		for(var s in divClass) {
			var ref = divClass[s].src;
		}
		//alert(ref);
		divli[i].innerHTML = '<div class="divdown"><a href="http://www.mindesk.com/download.php?url='+ref+'" target="_blank" title="下载壁纸到电脑">下载壁纸到电脑</a></div>' + divli[i].innerHTML;//在这里加内容ref是取出的图片地址
	}