//动态为onload事件增加一个处理
//for IE
if(window.attachEvent){
    window.attachEvent("onload",function(){homeLeftNavShow();});
}
//for FF
if(window.addEventListener){
   window.addEventListener("load",homeLeftNavShowMain,false);
}
function homeLeftNavShowMain()
{
	homeLeftNavShow();
}
function homeLeftNavShow(){
	document.getElementById("homeLeftNav").style.display='block';
	document.getElementById("homeLeftNav2").style.display='block';
}