function image_preload() 
{
	dolby = new Image(); 
	dolby.src = "http://www.towerspost.com/images/nav/dolby_color.jpg";
	editors = new Image(); 
	editors.src = "http://www.towerspost.com/images/nav/editors_color.jpg";
	graphics = new Image(); 
	graphics.src = "http://www.towerspost.com/images/nav/graphics_color.jpg";
	hd_mastering = new Image(); 
	hd_mastering.src = "http://www.towerspost.com/images/nav/hd_mastering_color.jpg";
}