if(document.images){
	h_services_off=new Image;h_services_off.src='/Images/hp_residential_off.gif';
	h_services_on=new Image;h_services_on.src='/Images/hp_residential_on.gif';

	c_services_off=new Image;c_services_off.src='/Images/hp_commercial_off.gif';
	c_services_on=new Image;c_services_on.src='/Images/hp_commercial_on.gif';

	// Header Navigation
	about_off=new Image;about_off.src='/Images/about-off.gif';
	about_on=new Image;about_on.src='/Images/about-on.gif';

	contact_off=new Image;contact_off.src='/Images/contact-off.gif';
	contact_on=new Image;contact_on.src='/Images/contact-on.gif';

	home_off=new Image;home_off.src='/Images/home-off.gif';
	home_on=new Image;home_on.src='/Images/home-on.gif';

	// Secondary Navigation
	aboutisaac_off=new Image;aboutisaac_off.src='/Images/but_aboutisaac_off.gif';
	aboutisaac_on=new Image;aboutisaac_on.src='/Images/but_aboutisaac_on.gif';

	customerservice_off=new Image;customerservice_off.src='/Images/but_customerservice_off.gif';
	customerservice_on=new Image;customerservice_on.src='/Images/but_customerservice_on.gif';

	green_off=new Image;green_off.src='/Images/but_gogreen_off.gif';
	green_on=new Image;green_on.src='/Images/but_gogreen_on.gif';

	contactus_off=new Image;contactus_off.src='/Images/but_contactus_off.gif';
	contactus_on=new Image;contactus_on.src='/Images/but_contactus_on.gif';

	nav_h_services_off=new Image;nav_h_services_off.src='/Images/but_residential_off.gif';
	nav_h_services_on=new Image;nav_h_services_on.src='/Images/but_residential_on.gif';

	nav_c_services_off=new Image;nav_c_services_off.src='/Images/but_commercial_off.gif';
	nav_c_services_on=new Image;nav_c_services_on.src='/Images/but_commercial_on.gif';

	nav_h_services_main_off=new Image;nav_h_services_main_off.src='/Images/but_large_residential_off.gif';
	nav_h_services_main_on=new Image;nav_h_services_main_on.src='/Images/but_large_residential_on.gif';

	nav_c_services_main_off=new Image;nav_c_services_main_off.src='/Images/but_large_commercial_off.gif';
	nav_c_services_main_on=new Image;nav_c_services_main_on.src='/Images/but_large_commercial_off.gif';

	client_services_on=new Image;client_services_on.src='/Images/clients-on.gif';
	client_services_off=new Image;client_services_off.src='/Images/clients-off.gif';

	commercials_on=new Image;commercials_on.src='/Images/commercials-on.gif';
	commercials_off=new Image;commercials_off.src='/Images/commercials-off.gif';

	news_on=new Image;news_on.src='/Images/news-on.gif';
	news_off=new Image;news_off.src='/Images/news-off.gif';

	promotions_on=new Image;promotions_on.src='/Images/promotions-on.gif';
	promotions_off=new Image;promotions_off.src='/Images/promotions-off.gif';
}
function imageSwap(location,imageName){
	if(document.images)document.images[location].src=eval(imageName+'.src');
}