if (document.images){
	about_off = new Image();
	about_off.src = "images/about_off.png";
	about_on = new Image();
	about_on.src = "images/about_on.png";

	services_off = new Image();
	services_off.src = "images/services_off.png";
	services_on = new Image();
	services_on.src = "images/services_on.png";

	products_off = new Image();
	products_off.src = "images/products_off.png";
	products_on = new Image();
	products_on.src = "images/products_on.png";

	signbids_off = new Image();
	signbids_off.src = "images/signbids_off.png";
	signbids_on = new Image();
	signbids_on.src = "images/signbids_on.png";
	
	contact_off = new Image();
	contact_off.src = "images/contact_off.png";
	contact_on = new Image();
	contact_on.src = "images/contact_on.png";
}
	
	function myOn(about){
		document[about].src = eval(about + "_on").src;
	}
	
	function myOut(about){
		document[about].src = eval(about + "_off").src;
	}
	
		function myOn(services){
		document[services].src = eval(services + "_on").src;
	}
	
	function myOut(services){
		document[services].src = eval(services + "_off").src;
	}
	
		function myOn(products){
		document[products].src = eval(products + "_on").src;
	}
	
	function myOut(products){
		document[products].src = eval(products + "_off").src;
	}
	
		function myOn(signbids){
		document[signbids].src = eval(signbids + "_on").src;
	}
	
	function myOut(signbids){
		document[signbids].src = eval(signbids + "_off").src;
	}
	
			function myOn(contact){
		document[contact].src = eval(contact + "_on").src;
	}
	
	function myOut(contact){
		document[contact].src = eval(contact + "_off").src;
	}