if (document.images) {
	logoon = new Image(183,52);
	logoon.src = "/workshops/socialstudies/images/global/logo_on.gif";
	logooff = new Image(183,52);
	logooff.src = "/workshops/socialstudies/images/global/logo_off.gif";
	
	homeon = new Image(49,52);
	homeon.src = "/workshops/socialstudies/images/global/home_on.gif";
	homeoff = new Image(49,52);
	homeoff.src = "/workshops/socialstudies/images/global/home_off.gif";
	
	siteMapon = new Image(52,22);
	siteMapon.src = "/workshops/socialstudies/images/global/sitemap_on.gif";
	siteMapoff = new Image(52,22);
	siteMapoff.src = "/workshops/socialstudies/images/global/sitemap.gif";
	
	glossaryon = new Image(50,22);
	glossaryon.src = "/workshops/socialstudies/images/global/glossary_on.gif";
	glossaryoff = new Image(50,22);
	glossaryoff.src = "/workshops/socialstudies/images/global/glossary.gif";
	
	abouton = new Image(119,33);
	abouton.src = "/workshops/socialstudies/images/front/about_on.gif";
	aboutoff = new Image(119,33);
	aboutoff.src = "/workshops/socialstudies/images/front/about_off.gif";
	
	usingon = new Image(119,48);
	usingon.src = "/workshops/socialstudies/images/front/using_on.gif";
	usingoff = new Image(119,48);
	usingoff.src = "/workshops/socialstudies/images/front/using_off.gif";
	
	facilitatoron = new Image(119,22);
	facilitatoron.src = "/workshops/socialstudies/images/front/facilitator_on.gif";
	facilitatoroff = new Image(119,22);
	facilitatoroff.src = "/workshops/socialstudies/images/front/facilitator_off.gif";
	
	summarieson = new Image(119,36);
	summarieson.src = "/workshops/socialstudies/images/front/summaries_on.gif";
	summariesoff = new Image(119,36);
	summariesoff.src = "/workshops/socialstudies/images/front/summaries_off.gif";
	
	whoswhoon = new Image(119,22);
	whoswhoon.src = "/workshops/socialstudies/images/front/whoswho_on.gif";
	whoswhooff = new Image(119,22);
	whoswhooff.src = "/workshops/socialstudies/images/front/whoswho_off.gif";
	
	creditson = new Image(119,22);
	creditson.src = "/workshops/socialstudies/images/front/credits_on.gif";
	creditsoff = new Image(119,22);
	creditsoff.src = "/workshops/socialstudies/images/front/credits_off.gif";
	
}