function mouseovermenu(obj){
obj.className="current"; 
var id;
var ma;
var mb;
 for (var i =1; i < 6; i++)
 {
  id ="menu"+i+"a";
  ma = document.getElementById(id);
  mb = document.getElementById("menu"+i+"b");
  if(id != obj.id) {
   ma.className="menu"+i+"_off";
   mb.style.display = "none";
  }
  else{
   ma.className="menu"+i+"_on";
   mb.style.display = "block";
  }
 }
} 
function mouseoverzxfw(obj){
obj.className="current"; 
var id;
var za;
var zb;
 for (var i =1; i < 5; i++)
 {
  id ="zxfw"+i+"a";
  za = document.getElementById(id);
  zb = document.getElementById("zxfw"+i+"b");
  if(id != obj.id) {
   za.className="zxfw_off";
   zb.style.display = "none";
  }
  else{
   za.className="zxfw_on";
   zb.style.display = "block";
  }
 }
} 
function mouseoverflfg(obj){
obj.className="current"; 
var id;
var fa;
var fb;
 for (var i =1; i < 3; i++)
 {
  id ="flfg"+i+"a";
  fa = document.getElementById(id);
  fb = document.getElementById("flfg"+i+"b");
  if(id != obj.id) {
   fa.className="flfg_off";
   fb.style.display = "none";
  }
  else{
   fa.className="flfg_on";
   fb.style.display = "block";
  }
 }
}
function view(number)
{
var obj=document.getElementById("group"+number);
if (obj.style.display=="block")
	{
		obj.style.display="none";
	}
else
	{
		obj.style.display="block";
	}
}