if (document.images) {
	menu1=new Image();
	menu1.src="images/mainNav1o.png";
	menu1a=new Image();
	menu1a.src="images/mainNav2o.png";
	menu2=new Image();
	menu2.src="images/mainNav3o.png";
	menu2a=new Image();
	menu2a.src="images/mainNav4o.png";
	menu3=new Image();
	menu3.src="images/mainNav5o.png";
	menu3a=new Image();
	menu3a.src="images/mainNav6o.png";
	menu4=new Image();
	menu4.src="images/mainNav7o.png";
}