if (document.images) {
	normal_products = new Image(107,36);
	normal_products.src ="/nav/tab-Products.jpg";
	over_products = new Image(107,36);
	over_products.src = "/nav/tab-Products-over.jpg";
	
	normal_support = new Image(105,36);
	normal_support.src ="/nav/tab-Support.jpg";
	over_support = new Image(105,36);
	over_support.src = "/nav/tab-Support-over.jpg";
	
	normal_academic = new Image(105,36);
	normal_academic.src ="/nav/tab-Academic.jpg";
	over_academic = new Image(105,36);
	over_academic.src = "/nav/tab-Academic-over.jpg";
	
	normal_freetools = new Image(105,36);
	normal_freetools.src ="/nav/tab-FreeTools.jpg";
	over_freetools = new Image(105,36);
	over_freetools.src = "/nav/tab-FreeTools-over.jpg";
	
	normal_aboutus = new Image(105,36);
	normal_aboutus.src ="/nav/tab-AboutUs.jpg";
	over_aboutus = new Image(105,36);
	over_aboutus.src = "/nav/tab-AboutUs-over.jpg";
	
	normal_retailer = new Image(370,36);
	normal_retailer.src ="/nav/tab-Retailer.jpg";
	over_retailer = new Image(370,36);
	over_retailer.src = "/nav/tab-Retailer-over.jpg";
	
	normal_subtab_about = new Image(117,22);
	normal_subtab_about.src ="/nav/subtab-About.jpg";
	over_subtab_about = new Image(117,22);
	over_subtab_about.src = "/nav/subtab-About-over.jpg";
	
	normal_subtab_news = new Image(61,22);
	normal_subtab_news.src ="/nav/subtab-News.jpg";
	over_subtab_news = new Image(61,22);
	over_subtab_news.src = "/nav/subtab-News-over.jpg";
	
	normal_subtab_press = new Image(127,22);
	normal_subtab_press.src ="/nav/subtab-Press.jpg";
	over_subtab_press = new Image(127,22);
	over_subtab_press.src = "/nav/subtab-Press-over.jpg";
	
	normal_subtab_employment = new Image(101,22);
	normal_subtab_employment.src ="/nav/subtab-Employment.jpg";
	over_subtab_employment = new Image(101,22);
	over_subtab_employment.src = "/nav/subtab-Employment-over.jpg";
	
	normal_subtab_awards = new Image(75,22);
	normal_subtab_awards.src ="/nav/subtab-Awards.jpg";
	over_subtab_awards = new Image(75,22);
	over_subtab_awards.src = "/nav/subtab-Awards-over.jpg";
	
	normal_sendemail = new Image(115,30);
	normal_sendemail.src ="images/sendemail.gif";
	over_sendemail = new Image(115,30);
	over_sendemail.src = "images/sendemail-over.gif";
	
	normal_droparrow = new Image(11,11);
	normal_droparrow.src ="images/droparrow.gif";
	over_droparrow = new Image(11,11);
	over_droparrow.src = "images/droparrow-over.gif";
	
	function chGraphic(imgModule,imgObject) {
		document.images[imgModule].src = eval(imgObject + ".src");
	}
}