if (document.images) {
	logoon = new Image(215,55);
	logoon.src = "../images/navBanner/iss_logo_on.gif";
	logooff = new Image(215,55);
	logooff.src = "../images/navBanner/iss_logo_off.gif";
	
	usingon = new Image(124,34);
	usingon.src = "../images/front_matter/index_using_on.gif";
	usingoff = new Image(124,34);
	usingoff.src = "../images/front_matter/index_using_off.gif";
	
	standardson = new Image(124,34);
	standardson.src = "../images/front_matter/index_integrating_on.gif";
	standardsoff = new Image(124,34);
	standardsoff.src = "../images/front_matter/index_integrating_off.gif";
	
	summaryon = new Image(124,20);
	summaryon.src = "../images/front_matter/index_summaries_on.gif";
	summaryoff = new Image(124,20);
	summaryoff.src = "../images/front_matter/index_summaries_off.gif";
	
	resourceson = new Image(124,47);
	resourceson.src = "../images/front_matter/index_resources_on.gif";
	resourcesoff = new Image(124,47);
	resourcesoff.src = "../images/front_matter/index_resources_off.gif";
	
	whoon = new Image(124,20);
	whoon.src = "../images/front_matter/index_whoswho_on.gif";
	whooff = new Image(124,20);
	whooff.src = "../images/front_matter/index_whoswho_off.gif";
}