function preloadImages( imageRoot )
{
 if (document.images) 
  {  
  preloadPics(imageRoot,
        'js', 'js-' ); 

  preloadPics(imageRoot+'metanav/',
        'map', 'map-', 
        'home', 'home-', 
        'mail', 'mail-' );
  }

  preloadFlag = true;
}


/*
function popup_image(url, width, height, top, left){
	var h = screen.availHeight;
	var w = screen.availWidth;
	if(!h && !w)	{
		var h = screen.Height;
		var w = screen.width;
	}
	w = w - 100;
	h = h - 100;
	
	if((width > w) && (w > 0)) width = w;
	if((height > h) && (h > 0)) height = h;
	
	width = parseInt(width);
	height = parseInt(height);	
	
	width+= 20;
	
	if(name==null) name='_blank';
	format = "top="+top+",left="+left+", height="+height+",width="+width+",status=yes,toolbar=no,scrollbars=yes,resizable=yes";
	var t = window.open(url,'_blank', format);
}
*/