if (document.images) {

//rollovers
		about = new Image();
		about_down = new Image();
		solutions = new Image();
		solutions_down = new Image();
		services = new Image();
		services_down = new Image();
		why = new Image();
		why_down = new Image();
		industries = new Image();
		industries_down = new Image();
		contact = new Image();
		contact_down = new Image();

		about.src = "_images/btn-about.gif";
		about_down.src = "_images/btn-about_on.gif";
		solutions.src = "_images/btn-solutions.gif";
		solutions_down.src = "_images/btn-solutions_on.gif";
		services.src = "_images/btn-services.gif";
		services_down.src = "_images/btn-services_on.gif";
		why.src = "_images/btn-why.gif";
		why_down.src = "_images/btn-why_on.gif";
		industries.src = "_images/btn-industries.gif";
		industries_down.src = "_images/btn-industries_on.gif";
		contact.src = "_images/btn-contact.gif";
		contact_down.src = "_images/btn-contact_on.gif";

//services
		supply = new Image();
		supply_down = new Image();
		worldwide = new Image();
		worldwide_down = new Image();
		project = new Image();
		project_down = new Image();
		returns = new Image();
		returns_down = new Image();
		industry = new Image();
		industry_down = new Image();
		support = new Image();
		support_down = new Image();

		supply.src = "_images/home-supply.gif";
		supply_down.src = "_images/home-supply-on.gif";
		worldwide.src = "_images/home-worldwide.gif";
		worldwide_down.src = "_images/home-worldwide-on.gif";
		project.src = "_images/home-project.gif";
		project_down.src = "_images/home-project-on.gif";
		returns.src = "_images/home-returns.gif";
		returns_down.src = "_images/home-returns-on.gif";
		industry.src = "_images/home-industry.gif";
		industry_down.src = "_images/home-industry-on.gif";
		support.src = "_images/home-support.gif";
		support_down.src = "_images/home-support-on.gif";

//industries
		software = new Image();
		software_down = new Image();
		electronics = new Image();
		electronics_down = new Image();
		healthcare = new Image();
		healthcare_down = new Image();
		consumer = new Image();
		consumer_down = new Image();

		software.src = "_images/home-software.jpg";
		software_down.src = "_images/home-software-on.jpg";
		electronics.src = "_images/home-electronics.jpg";
		electronics_down.src = "_images/home-electronics-on.jpg";
		healthcare.src = "_images/home-healthcare.jpg";
		healthcare_down.src = "_images/home-healthcare-on.jpg";
		consumer.src = "_images/home-consumer.jpg";
		consumer_down.src = "_images/home-consumer-on.jpg";

}

function buttonOn(imageName) {
	if (document.images) {
		document[imageName].src = eval(imageName+"_down.src")
		}
	}

function buttonOff(imageName) {
	if (document.images) {
		document[imageName].src = eval(imageName+".src")
		}
	}