// JScript File

var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = "hidden";

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = "visible";

}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = "hidden";
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose; 



// OPENING AND CLOSING LAYERS

function toggleLayer( whichLayer ) { 

  var elem, vis;   
  
  if( document.getElementById ) 
  
  // this is the way the standards work    
  
  elem = document.getElementById( whichLayer );  
  
  else if( document.all ) // this is the way old msie versions work  
   
  elem = document.all[whichLayer];  
  else if( document.layers ) // this is the way nn4 works 
     
  elem = document.layers[whichLayer];  vis = elem.style;

  // if the style.display value is blank we try to figure it out here  
  if (vis.display == 'block')
    {vis.display = 'none';}
  else
    {vis.display = 'block';} 
}