var s=true;
var constant_num=0;//菜单元素偏离主菜单距离常量
var re_position=0;//修正下拉菜单出现的位置
var p_key=false;//修正下拉菜单出现的位置的开关
if(p_key=="true")
{
	re_position=200;
}


function wait_hide(num){
setTimeout("hide("+num+")",100);
}

function show1(num){
	var lumpdiv="nav_menu"+num;
  document.getElementById(lumpdiv).style.display="block";
  s=false;
}
function hid1(num){
  s=true;
  wait_hide(num);
}

function show(num){
  s=true;
  var lumpdiv="nav_menu"+num;
  document.getElementById(lumpdiv).style.display="block";
  document.getElementById(lumpdiv).style.pixelTop=document.body.scrollTop+event.clientY-event.offsetY+34;
  //document.getElementById("nav_menu"+num).style.pixelLeft=document.body.scrollLeft+event.clientX-event.offsetX-230;
  //document.getElementById("nav_menu"+num).style.pixelLeft=document.getElementById("wrapper").offsetLeft;
  document.getElementById(lumpdiv).style.margin_left=document.body.scrollLeft-200;
}

function hide(num){
	var lumpdiv="nav_menu"+num;
	if(s){
	document.getElementById(lumpdiv).style.display="none";
	}
}