//转换中间的tab
	function chage_centerTab(type,value){
		for(var i=1;i<=2;i++){
			if(i==value){
				document.getElementById(type+"_"+i).className="wz1 zjTab_over";
				document.getElementById("table_"+type+"_"+i).style.display="block";
			}else{
				document.getElementById(type+"_"+i).className="wz2 zjTab";
				document.getElementById("table_"+type+"_"+i).style.display="none";
			}
		}
	}