function closeMe() {
	document.getElementById('ad').style.visibility = 'hidden';
	document.getElementById('ad').style.display = 'none';
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function doPreload() {
   var the_images = new Array('nav_overview.gif', 
							  'nav_overview_f2.gif', 
							  'nav_programs.gif', 
							  'nav_programs_f2.gif', 
							  'nav_portfolio.gif', 
							  'nav_portfolio_f2.gif',
							  'nav_team.gif', 
							  'nav_team_f2.gif', 
							  'nav_news.gif', 
							  'nav_news_f2.gif', 
							  'nav_contact.gif', 
							  'nav_contact_f2.gif'
								);
	newPreload(the_images);
}

function newPreload(the_images_array) {
	if (document.images) {
	   for( var loop = 0; loop < the_images_array.length; loop++) {
			var an_image = new Image();
			an_image.src = '/images/' + the_images_array[loop];
	   }
   		preloadFlag = true;
	}
}