if (document.images) {

companyOff = new Image(58,46);
companyOff.src = "home.gif";
companyOn = new Image(58,46);
companyOn.src = "homedown.gif";

productsOff = new Image(58,46);
productsOff.src = "products.gif";
productsOn = new Image(58,46);
productsOn.src = "productsdown.gif";

servicesOff = new Image(58,46);
servicesOff.src = "services.gif";
servicesOn = new Image(58,46);
servicesOn.src = "servicesdown.gif";

techsupportOff = new Image(58,46);
techsupportOff.src = "techsupport.gif";
techsupportOn = new Image(58,46);
techsupportOn.src = "techsupportdown.gif";

softwareOff = new Image(211,133);
softwareOff.src = "software.jpg";
softwareOn = new Image(211,133);
softwareOn.src = "softwarehover.jpg";

communicationsOff = new Image(211,133);
communicationsOff.src = "communications.jpg";
communicationsOn = new Image(211,133);
communicationsOn.src = "communicationshover.jpg";

serviceOff = new Image(211,133);
serviceOff.src = "service.jpg";
serviceOn = new Image(211,133);
serviceOn.src = "servicehover.jpg";

products1Off = new Image(211,133);
products1Off.src = "products1.jpg";
products1On = new Image(211,133);
products1On.src = "products1hover.jpg";

products2Off = new Image(211,133);
products2Off.src = "products2.jpg";
products2On = new Image(211,133);
products2On.src = "products2hover.jpg";

products3Off = new Image(211,133);
products3Off.src = "products3.jpg";
products3On = new Image(211,133);
products3On.src = "products3hover.jpg";

}
	function switchOn(imgName) {
	    if (document.images) { 
	        imgOn = eval(imgName + "On.src"); 
	        document [imgName].src = imgOn;
	        }
	}
	
	function switchOff(imgName) {
	   if (document.images) {
	        imgOff = eval(imgName + "Off.src");
	        document [imgName].src = imgOff;
	        }
	}