//判断浏览器

 

//----------------------------- 判断浏览器 -------------------------

var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串

var isOpera = userAgent.indexOf("Opera") > -1; //判断是否Opera

var isMaxthon = userAgent.indexOf("Maxthon") > -1 ; //判断是否傲游3.0

var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera ; //判断是否IE 

var isFF = userAgent.indexOf("Firefox") > -1 ; //判断是否Firefox

var isFireffox=isFF

var isSafari = userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Chrome") < 1 ; //判断是否Safari

var isChrome = userAgent.indexOf("Chrome") > -1 ; //判断是否Chrome

function myBrowser(){

if(isIE){ 

   var IE5 = IE55 = IE6 = IE7 = IE8 = false;

   var reIE = new RegExp("MSIE (\\d+\\.\\d+);");

   reIE.test(userAgent);

   var fIEVersion = parseFloat(RegExp["$1"]);

 

   IE55 = fIEVersion == 5.5 ;

   IE6 = fIEVersion == 6.0 ;

   IE7 = fIEVersion == 7.0 ;

   IE8 = fIEVersion == 8.0 ;

 

   if(IE55){ return "IE55"; }

   if(IE6){ return "IE6"; }

   if(IE7){ return "IE7"; }

   if(IE8){ return "IE8"; }

}

 

if(isFF){ return "FF"; }

if(isOpera){ return "Opera"; }

if(isMaxthon){ return "Maxthon"; }

if(isSafari){ return "Safari"; }

if(isChrome){ return "Chrome"; }

 

} //myBrowser() end

 

 

//window.onload=function(){

//document.getElementById("ua").innerHTML=navigator.userAgent;

//if(myBrowser()=="FF"){alert("我是 Firefox");}

//if(myBrowser()=="Maxthon"){alert("我是傲游(webkit核心)");}

//if(myBrowser()=="Opera"){alert("我是 Opera");}

//if(myBrowser()=="Safari"){alert("我是 Safari");}

//if(myBrowser()=="Chrome"){alert("我是 Chrome");}

//if(myBrowser().indexOf("IE")>-1){alert("我是 IE");} 

//if(myBrowser()=="IE55"){alert("我是 IE5.5");}

//if(myBrowser()=="IE6"){alert("我是 IE6");}

//if(myBrowser()=="IE7"){alert("我是 IE7");}

//if(myBrowser()=="IE8"){alert("我是 IE8");}

//

//}

 

function iif(a,b,c){

if(a){return b}else{return c;1}

}

 

 

var jishu1=0;

function rightbottomad(cid)

{

jishu1++;

var abc = document.getElementById(cid);

var top = document.documentElement.scrollTop+document.documentElement.clientHeight-80-560+"px";//20是这个层的高度；

abc.style.top=iif(isIE,top,"270px")

if (isIE){

setTimeout(function(){rightbottomad(cid);},50);

}

return abc.style.top;

}

function closediv()

{

document.getElementById('tuad').style.visibility='hidden';

}

var position=iif(isIE,"absolute","fixed");

 

document.write('<div id="tuad" style="position:'+position+';right:0;"><a href="/" ><img src="/pic/求片报错有奖.gif" /></a>