function simplePreload()
{ 
	var args = simplePreload.arguments;
	document.imageArray = new Array(args.length);
	for(var i=0; i<args.length; i++)
	{
		document.imageArray[i] = new Image;
		document.imageArray[i].src = args[i];
	}
}
function switchImage(imgName, imgSrc) 
{
	if (document.images)
	{
		if (imgSrc != "none")
		{
			document.images[imgName].src = imgSrc;
		}
	}
}
function preloadImages()
{
	simplePreload('images/home_over.png','images/about_us_over.png','images/our_services_over.png','images/testimonials_over.png','images/contact_us_over.png','images/links_over.png','images/home.png','images/about_us.png','images/our_services.png','images/testimonials.png','images/contact_us.png','images/links.png');
}