//判断浏览器类型
var qgExploer = navigator.appName;
var qgIE;
if(qgExploer == "Microsoft Internet Explorer")
{
	qgIE = "IE";
	if(navigator.appVersion.match(/7./i)!='7.')
	{
		qgIE = "IE6";
	}
}
else
{
	qgIE = "FF";
	document.write("<style type='text/css'>body{overflow-y:scroll;}</style>");
}

var qgbody = (document.documentElement) ? document.documentElement : document.body

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

//网页跳转
function tourl(url)
{
	window.location.href=url;
}