function preload() { 
		preloadImage=new Image();
		preloadImage.src="images/button1-laminateflooring-on.jpg";
		preloadImage.src="images/button1-laminateflooring.jpg";
		
		preloadImage.src="images/button2-solidwood-flooring-on.jpg";
		preloadImage.src="images/button2-solidwood-flooring.jpg";
		
		preloadImage.src="images/button3-traviloc-on.jpg"; 
		preloadImage.src="images/button3-traviloc.jpg"; 


}