///////////////////////判别浏览器///////////////////////////////////

function lib_bwcheck(){ 
  this.ver=navigator.appVersion; 
  //alert(this.ver)
  this.agent=navigator.userAgent
  this.dom=document.getElementById?1:0
  this.win = (navigator.appVersion.indexOf("Win")>0);
  this.xwin = (navigator.appVersion.indexOf("X11")>0);
  this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
  this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom)?1:0;
  this.ie7=(this.ver.indexOf("MSIE 7")>-1 && this.dom)?1:0;
  this.ie4=(document.all && !this.dom)?1:0;
  this.ie=this.ie4||this.ie5||this.ie6||this.ie7
  this.mac=this.agent.indexOf("Mac")>-1
  this.opera5=this.agent.indexOf("Opera 5")>-1
  this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
  this.ns4=(document.layers && !this.dom)?1:0;
  this.bw=(this.ie7 || this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5 || this.dom||false);
  this.width = null;
  this.height = null;
  return this
}
var bw = new lib_bwcheck();
/////////////////////////////////////////////////////////////////

/////////////获得querystring参数值/////////////
function QueryString(panStr) 
{ 
	var vStr=""; 
	sorStr=top.location.search;
	if (sorStr==null || sorStr=="" || panStr==null || panStr=="") return vStr; 
	sorStr = sorStr.toLowerCase();
	panStr += "="; 
	var itmp=sorStr.indexOf(panStr); 
	if (itmp<0){return vStr;} 
	sorStr = sorStr.substr(itmp + panStr.length); 
	itmp=sorStr.indexOf("&"); 
	if (itmp<0)
	{
		return sorStr; 
	} 
	else 
    {
		sorStr=sorStr.substr(0,itmp); 
		return sorStr;
	} 
}
//////////////////////////////////////////////////////

/*********Array***********/
if(Array.prototype.push==null)
Array.prototype.push = Push;
function Push(){
	var ar=[];
	for (var i=0;i<arguments.length;i++) this[this.length]=arguments[i];
	return this.length;
}

if(Array.prototype.pop==null)
Array.prototype.pop = Pop;
function Pop(){
	var rs=this[this.length-1];
	this.length = this.length-1;
	return rs;
}
/*********Array***********/