function swapIt(img, src) {
	document.images[img].src = src;
}

function preloader(){
	var the_images = new Array('/images/navbar/home_btn.gif',
	'/images/navbar/products_btn.gif',
	'/images/navbar/customer_service_btn.gif', 
	'/images/navbar/contests_btn.gif',
	'/images/navbar/where_btn.gif');
	preloadImages(the_images);
}

function preloadImages(the_images_array){
	for(var loop = 0; loop < the_images_array.length; loop++){
		var an_image = new Image();
		an_image.src = the_images_array[loop];
	}
}