function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

var timer = "";
var previous_menu = "";

function showSub(myButton, sub)
{
 // Reposition Submenu according to position of button
 mySub = MM_findObj(sub);
 mySubX = getLeft(myButton) - 5;
 mySubY = getTop(myButton) + 24;
 
 
    if (sub=='submenu[home]')
   {
    mySubX -= 4;
   } 
   rightOffset = mySub.offsetWidth - myButton.offsetWidth;
   mySubX -= rightOffset - 13; 
  
 
 if (sub=='submenu[home]')
 {
  mySubX += 2;
 }
 
 mySub.style.left = mySubX;
 mySub.style.top = mySubY;

 closeSub(previous_menu);
 clearTimeout(timer);
 MM_showHideLayers(sub,'','show')
 previous_menu = sub;
}

function checkSub(sub)
{
 if (sub != previous_menu)
 MM_showHideLayers(previous_menu,'','hide')
 else
 {
  timer=setTimeout('closeSub(\''+sub+'\')',2000);
 }
}

function resetSubtimer()
{
 clearTimeout(timer); 
}

function closeSub(sub)
{
 if (sub!="")
 {
  MM_showHideLayers(sub,'','hide');
 }
}

function getTop(myObj)
{
 var top=0;
 while (myObj != document.body)
 {
  top += myObj.offsetTop;
  myObj = myObj.offsetParent;
 } 
 return top;
}

function getLeft(myObj)
{
 var left=0;
 while (myObj != document.body)
 {
  left += myObj.offsetLeft;
  myObj = myObj.offsetParent;
 } 
 return left;
}