var Sys = {};
var ua = navigator.userAgent.toLowerCase();
var s;
(s = ua.match(/msie ([\d.]+)/)) ? Sys.ie = s[1] :
(s = ua.match(/firefox\/([\d.]+)/)) ? Sys.firefox = s[1] :
(s = ua.match(/chrome\/([\d.]+)/)) ? Sys.chrome = s[1] :
(s = ua.match(/opera.([\d.]+)/)) ? Sys.opera = s[1] :
(s = ua.match(/version\/([\d.]+).*safari/)) ? Sys.safari = s[1] : 0;
//以下进行测试
if (Sys.ie) {//alert('IE: ' + Sys.ie);
var ie_s=document.documentElement.scrollHeight;
var browser=navigator.appName;
var b_version=navigator.appVersion;
var version=b_version.split(";");
var trim_Version=version[1].replace(/[ ]/g,"");
    if(browser=="Microsoft Internet Explorer" && trim_Version=="MSIE6.0") 
	{
	document.getElementById("header").style.height=parseInt(ie_s);
	document.getElementById("footer").style.height=parseInt(ie_s);
	}else{
	document.getElementById("header").style.height=parseInt(ie_s);
	document.getElementById("footer").style.height=parseInt(ie_s);
	}
///alert(ie_s)
}else if (Sys.firefox){//alert('Firefox: ' + Sys.firefox);
var ie_firefox=document.documentElement.scrollHeight;
document.getElementById("header").style.height=ie_firefox+"px";
document.getElementById("footer").style.height=ie_firefox+"px";
///alert(ie_s)
}else if (Sys.chrome){ //alert('Chrome: ' + Sys.chrome);
var ie_chrome=document.body.scrollHeight;
document.getElementById("header").style.height=ie_chrome+"px";
document.getElementById("footer").style.height=ie_chrome+"px";
////alert(ie_s)
}else if (Sys.opera){ //alert('Opera: ' + Sys.opera);
var ie_opera=document.documentElement.scrollHeight;
document.getElementById("header").style.height=parseInt(ie_opera);
document.getElementById("footer").style.height=parseInt(ie_opera);
//alert(ie_s)
}else if (Sys.safari) {//alert('Safari: ' + Sys.safari);
var ie_safari=document.body.scrollHeight;
//var ie_safari=document.getElementsByTagName("body")[0].scrollHeight
document.getElementById("header").style.height=ie_safari+"px";
document.getElementById("footer").style.height=ie_safari+"px";
}

function liswin(boj,sing){
	var obj=boj+"win";
	if(sing=="o"){
	document.getElementById(obj).style.display="";
	}
	else
	{
	document.getElementById(obj).style.display="none";
	}
}