function $(id) {
	return document.getElementById(id);
}

function AddFavourite(file,title)
{
var url="http://www.90he.com"+file+"";
try
{
window.external.addFavorite(url, ""+title+"");
}
catch (e)
{
try
{
window.sidebar.addPanel(""+title+"", url, "");
}
catch (e)
{
alert("加入收藏失败，请使用Ctrl+D进行添加");
}
}
}

var userAgent = navigator.userAgent.toLowerCase();
var is_opera = userAgent.indexOf('opera') != -1 && opera.version();
var is_ie = (userAgent.indexOf('msie') != -1 && !is_opera) && userAgent.substr(userAgent.indexOf('msie') + 5, 3);
	function altStyle(obj) {
		function altStyleClear(obj) {
			var input, lis, i;
			lis = obj.parentNode.getElementsByTagName('li');
			for(i=0; i < lis.length; i++){
				lis[i].className = '';
			}
		}
		var input, lis, i, cc, o;
		cc = 0;
		lis = obj.getElementsByTagName('li');
		for(i=0; i < lis.length; i++){
			lis[i].onclick = function(e) {
				o = is_ie ? event.srcElement.tagName : e.target.tagName;
				if(cc) {
					return;
				}
				cc = 1;
				input = this.getElementsByTagName('input')[0];
				if(input.getAttribute('type') == 'checkbox' || input.getAttribute('type') == 'radio') {
					if(input.getAttribute('type') == 'radio') {
						altStyleClear(this);
					}

					if(is_ie || o != 'INPUT' && input.onclick) {
						input.click();
					}
					if(this.className != 'checked') {
						this.className = 'checked';
						input.checked = true;
					} else {
						this.className = '';
						input.checked = false;
					}
				}
			}
			lis[i].onmouseup = function(e) {
				cc = 0;
			}
		}
	}


function setTab(area,id) {
	var tabArea=document.getElementById(area);
	var contents=tabArea.childNodes;
	for(i=0; i<contents.length; i++) {
		if(contents[i].className=='tab' || contents[i].className=='tab1'){contents[i].style.display='none';}
	}
	document.getElementById(id).style.display='block';
}