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

//给Stirng 增加replaceAll函数
 String.prototype.replaceAll = function(
	 strTarget, // The substring you want to replace
	 strSubString // The string you want to replace in.
	 ){
	 var strText = this;
	 strText = strText.replace(new RegExp(strTarget,"gm"), strSubString);
	 return strText;
 }
 
String.prototype.endWith=function(oString){
  var   reg=new   RegExp(oString+"$");  
  return   reg.test(this);  
}

function WinOpen(url,name,iWidth,iHeight){
	var url;                                 //转向网页的地址;
	var name;                           //网页名称，可为空;
	var iWidth;                          //弹出窗口的宽度;
	var iHeight;                        //弹出窗口的高度;
	var iTop = (window.screen.height-30-iHeight)/2;       //获得窗口的垂直位置;
	var iLeft = (window.screen.width-10-iWidth)/2;           //获得窗口的水平位置;
	window.open(url,name,'height='+iHeight+',innerHeight='+iHeight+',width='+iWidth+',innerWidth='+iWidth+',top='+iTop+',left='+iLeft+',scrollbars=yes,resizeable=auto');
}

function IeTrueBody(){
	return (document.compatMode && document.compatMode!="BackCompat")?document.documentElement:document.body;
}