if (document.images) 

	{
	normal0 = new Image();
	normal0.src = "nav_bar/normal0.gif";
	normal1 = new Image();
	normal1.src = "nav_bar/normal1.gif";
	normal2 = new Image();
	normal2.src = "nav_bar/normal2.gif";
	normal3 = new Image();
	normal3.src = "nav_bar/normal3.gif";
	normal4 = new Image();
	normal4.src = "nav_bar/normal4.gif";
	normal5 = new Image();
	normal5.src = "nav_bar/normal5.gif";
	
	over0 = new Image();
	over0.src = "nav_bar/over0.gif";
	over1 = new Image();
	over1.src = "nav_bar/over1.gif";
	over2 = new Image();
	over2.src = "nav_bar/over2.gif";
	over3 = new Image();
	over3.src = "nav_bar/over3.gif";
	over4 = new Image();
	over4.src = "nav_bar/over4.gif";
	over5 = new Image();
	over5.src = "nav_bar/over5.gif";
	
	}