if (document.images) {

 homeon = new Image();
 homeon.src = "/images/menu_home_on.gif";

 homeoff = new Image();
 homeoff.src = "/images/menu_home_off.gif";

 about_uson = new Image();
 about_uson.src = "/images/menu_about_us_on.gif";

 about_usoff = new Image();
 about_usoff.src = "/images/menu_about_us_off.gif";

 productson = new Image();
 productson.src = "/images/menu_products_on.gif";

 productsoff = new Image();
 productsoff.src = "/images/menu_products_off.gif";

 find_a_repon = new Image();
 find_a_repon.src = "/images/menu_find_a_rep_on.gif";

 find_a_repoff = new Image();
 find_a_repoff.src = "/images/menu_find_a_rep_off.gif";

 news_and_eventson = new Image();
 news_and_eventson.src = "/images/menu_news_and_events_on.gif";

 news_and_eventsoff = new Image();
 news_and_eventsoff.src = "/images/menu_news_and_events_off.gif";

 downloadson = new Image();
 downloadson.src = "/images/menu_downloads_on.gif";

 downloadsoff = new Image();
 downloadsoff.src = "/images/menu_downloads_off.gif";

 contact_uson = new Image();
 contact_uson.src = "/images/menu_contact_us_on.gif";

 contact_usoff = new Image();
 contact_usoff.src = "/images/menu_contact_us_off.gif";

 }