//首页头部菜单JS
	function qiehuan(num){
		for(var id = 0;id<=9;id++)
		{
			if(id==num)
			{
				document.getElementById("qh_con"+id).style.display="block";
				document.getElementById("mynav"+id).className="nav_on";
			}
			else
			{
				document.getElementById("qh_con"+id).style.display="none";
				document.getElementById("mynav"+id).className="";
			}
		}
	}
	
	
	
function switchCell(tab, n) {
	tab=document.getElementsByName(tab);
	for(i=0;i<tab.length;i++) tab.item(i).className="tabBox";
	tab.item(n).className="";
}




function nTabs(thisObj,Num){
    if(thisObj.className == "active")return;
    var tabObj = thisObj.parentNode.id;
    var tabList = document.getElementById(tabObj).getElementsByTagName("li");
    for(i=0; i <tabList.length; i++)
    {
        if (i == Num)
        {
            thisObj.className = "active"; 
            document.getElementById(tabObj+"_Content"+i).style.display = "block";
        }else{
            tabList[i].className = "normal"; 
            document.getElementById(tabObj+"_Content"+i).style.display = "none";
        }
    } 
}