if (document.images) 

	{
	normal0 = new Image();
	normal0.src = "images/normal0.gif";
	normal1 = new Image();
	normal1.src = "images/normal1.gif";
	normal2 = new Image();
	normal2.src = "images/normal2.gif";
	normal3 = new Image();
	normal3.src = "images/normal3.gif";

	
	over0 = new Image();
	over0.src = "images/over0.gif";
	over1 = new Image();
	over1.src = "images/over1.gif";
	over2 = new Image();
	over2.src = "images/over2.gif";
	over3 = new Image();
	over3.src = "images/over3.gif";


	}