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";
	
	frontHomeon = new Image(109,38);
	frontHomeon.src = "../images/front_matter/about_video_on.gif";
	frontHomeoff = new Image(109,38);
	frontHomeoff.src = "../images/front_matter/about_video_off.gif";
	
	usingon = new Image(109,33);
	usingon.src = "../images/front_matter/using_videos_on.gif";
	usingoff = new Image(109,33);
	usingoff.src = "../images/front_matter/using_videos_off.gif";
	
	standardson = new Image(109,45);
	standardson.src = "../images/front_matter/integrating_on.gif";
	standardsoff = new Image(109,45);
	standardsoff.src = "../images/front_matter/integrating_off.gif";
	
	summarieson = new Image(109,20);
	summarieson.src = "../images/front_matter/summaries_on.gif";
	summariesoff = new Image(109,20);
	summariesoff.src = "../images/front_matter/summaries_off.gif";
	
	resourceson = new Image(109,45);
	resourceson.src = "../images/front_matter/resources_on.gif";
	resourcesoff = new Image(109,45);
	resourcesoff.src = "../images/front_matter/resources_off.gif";
	
	whoon = new Image(109,20);
	whoon.src = "../images/front_matter/whoswho_on.gif";
	whooff = new Image(109,20);
	whooff.src = "../images/front_matter/whoswho_off.gif";
}