// JavaScript Document
function SwitchTab(num){
 for(var id = 1;id<=2;id++)
 {
  var ss="tb"+id;
  if(id==num)
  document.getElementById(ss).style.display="block";
  else
  document.getElementById(ss).style.display="none";
 }
 
 for(var id = 1;id<=2;id++)
 {
  var tb="tab"+id;
  if(id==num)
  document.getElementById(tb).className="td_on";
  else
  document.getElementById(tb).className="td_off";
 } 
}

//下拉显示
function Menu_hide(divid) { //v3.0
  var mydiv=document.getElementById(divid); //鼠标移出，两秒后隐藏当前的
  preid=divid;
  if(mydiv.style.display=="block"){
	  if(lastid!=="")
	  window.clearTimeout(lastid);
  	  lastid=window.setTimeout(hideMyDiv,1000);
  }
}
var preid="";
var currid="";
var lastid="";
function changemenu(mydiv){
	 if(lastid!=="")
	  window.clearTimeout(lastid);
currid=mydiv;
  if(preid!==""&&preid!==currid)
  	document.getElementById(preid).style.display="none";//鼠标移进，把之前的马上隐藏
  
  var obj = document.getElementById(mydiv);//显示当前鼠标所在div
  if (obj.style.display=='none'){
    obj.style.display='block';
  }else{
    obj.style.display='block';
  }
}
function hideMyDiv(){
	if(preid!=="")
	var obj=document.getElementById(preid);
	obj.style.display='none';
}