function imgOn(imgName)
{if (document.images) {document[imgName].src=eval(imgName+"on.src");}}

function imgOff(imgName)
{if (document.images) {document[imgName].src=eval(imgName+"off.src");}}

if (document.images)
{
homeon=new Image(); homeon.src="img/gnav_home_over.gif";
homeoff=new Image(); homeoff.src="img/gnav_home_off.gif";

aboutuson=new Image(); aboutuson.src="img/gnav_aboutus_over.gif";
aboutusoff=new Image(); aboutusoff.src="img/gnav_aboutus_off.gif";

productson=new Image(); productson.src="img/gnav_products_over.gif";
productsoff=new Image(); productsoff.src="img/gnav_products_off.gif";

resourceson=new Image(); resourceson.src="img/gnav_resources_over.gif";
resourcesoff=new Image(); resourcesoff.src="img/gnav_resources_off.gif";

newson=new Image(); newson.src="img/gnav_news_over.gif";
newsoff=new Image(); newsoff.src="img/gnav_news_off.gif";

clientson=new Image(); clientson.src="img/gnav_clients_over.gif";
clientsoff=new Image(); clientsoff.src="img/gnav_clients_off.gif";

contactuson=new Image(); contactuson.src="img/gnav_contactus_over.gif";
contactusoff=new Image(); contactusoff.src="img/gnav_contactus_off.gif";

}