// JavaScript Document
function $(val)
{
	return document.getElementById(val);
	}
	
function changeTab(div_id,target){
	if(target!=null&&target!=""){
		var h=$(div_id).getElementsByTagName("li");//数组h=不同id下的li属性,
		for(var i=1;i<=h.length;i++)
		{
			$(div_id+i).style.display="none";
			if(target==i){//点击时的个数
			   h[i-1].className="serverF_active";
			}else
			{
				h[i-1].className="serverF_normal";
			}
		}
		$(div_id+target).style.display="";
	}
	else{
		}
}