var numberOfMenus;
var currentMenuNumber;

window.onload=InitAndAddEventToElements;	

function InitAndAddEventToElements()
{
	var menuslinks=document.getElementById('menus').getElementsByTagName('a');
	for(i=0;i<menuslinks.length;i++)
	{
		menuslinks[i].onmouseover=HandleMouseover;
		if(menuslinks[i].className=='activeMenu')
		{
			currentMenuNumber=i;
		}					
	}
	numberOfMenus=i;
	
	var submenulinks =document.getElementById('submenus').getElementsByTagName('a');
	for(i=0;i<submenulinks.length;i++)
	submenulinks[i].onmouseover=CheckUserInputForMenu;
}

function setLayerCurrentState()
{
	setLayerState(currentMenuNumber);	
	CheckUserInputForMenu();
}

function HandleMouseover()
{
	setLayerState(this.id.substring(4));
}

function setLayerState(menuNumber)
{	
	for(i=0;i<numberOfMenus;i++)
	{				
		if(i==menuNumber)
		{
			document.getElementById('menu'+i).className='activeMenu';
			MM_showHideLayers('submenu'+i,'','show');
		}
		else
		{
			document.getElementById('menu'+i).className='standardMenu';
			MM_showHideLayers('submenu'+i,'','hide');
		}
	}			
}

var checkIt
function CheckUserInputForMenu()
{
	if (checkIt) clearTimeout(checkIt);
	checkIt = setTimeout('setLayerCurrentState();',5000);
}


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; }
}
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;
}