if (document.images) {
	logoon = new Image(183,52);
	logoon.src = "../images/global/logo_on.gif";
	logooff = new Image(183,52);
	logooff.src = "../images/global/logo_off.gif";
	
	homeon = new Image(49,52);
	homeon.src = "../images/global/home_on.gif";
	homeoff = new Image(49,52);
	homeoff.src = "../images/global/home_off.gif";
	
	siteMapon = new Image(52,22);
	siteMapon.src = "../images/global/sitemap_on.gif";
	siteMapoff = new Image(52,22);
	siteMapoff.src = "../images/global/sitemap.gif";
	
	glossaryon = new Image(50,22);
	glossaryon.src = "../images/global/glossary_on.gif";
	glossaryoff = new Image(50,22);
	glossaryoff.src = "../images/global/glossary.gif";
	
	engageon = new Image(119,20);
	engageon.src = "../images/global/engage_on.gif";
	engageoff = new Image(119,20);
	engageoff.src = "../images/global/engage_off.gif";
	
	exploreon = new Image(119,20);
	exploreon.src = "../images/global/explore_on.gif";
	exploreoff = new Image(119,20);
	exploreoff.src = "../images/global/explore_off.gif";
	
	explainon = new Image(119,20);
	explainon.src = "../images/global/explain_on.gif";
	explainoff = new Image(119,20);
	explainoff.src = "../images/global/explain_off.gif";
	
	applyon = new Image(119,20);
	applyon.src = "../images/global/apply_on.gif";
	applyoff = new Image(119,20);
	applyoff.src = "../images/global/apply_off.gif";
	
	evaluateon = new Image(119,20);
	evaluateon.src = "../images/global/evaluate_on.gif";
	evaluateoff = new Image(119,20);
	evaluateoff.src = "../images/global/evaluate_off.gif";
	
	resourceson = new Image(119,20);
	resourceson.src = "../images/global/resources_on.gif";
	resourcesoff = new Image(119,20);
	resourcesoff.src = "../images/global/resources_off.gif";
	
	printoutson = new Image(119,20);
	printoutson.src = "../images/global/printouts_on.gif";
	printoutsoff = new Image(119,20);
	printoutsoff.src = "../images/global/printouts_off.gif";
	
	assignon = new Image(119,20);
	assignon.src = "../images/global/assign_on.gif";
	assignoff = new Image(119,20);
	assignoff.src = "../images/global/assign_off.gif";
}