function PreLoadSiteMap(){
	if (document.images){
		unit1on=new Image(); unit1on.src="images/unit1.gif";
		unit2on=new Image(); unit2on.src="images/unit2.gif";
		unit3on=new Image(); unit3on.src="images/unit3.gif";
		unit4on=new Image(); unit4on.src="images/unit4.gif";
		unit5on=new Image(); unit5on.src="images/unit5.gif";
		unit6on=new Image(); unit6on.src="images/unit6.gif";
		unit7on=new Image(); unit7on.src="images/unit7.gif";
		unit8on=new Image(); unit8on.src="images/unit8.gif";
		unit9on=new Image(); unit9on.src="images/unit9.gif";
		unitoff=new Image(); unitoff.src="images/blank_siteplan.gif";
		
		map1on=new Image(); map1on.src="images/sitemap_unit1.gif";
		map2on=new Image(); map2on.src="images/sitemap_unit2.gif";
		map3on=new Image(); map3on.src="images/sitemap_unit3.gif";
		map4on=new Image(); map4on.src="images/sitemap_unit4.gif";
		map5on=new Image(); map5on.src="images/sitemap_unit5.gif";
		map6on=new Image(); map6on.src="images/sitemap_unit6.gif";
		map7on=new Image(); map7on.src="images/sitemap_unit7.gif";
		map8on=new Image(); map8on.src="images/sitemap_unit8.gif";
		map9on=new Image(); map9on.src="images/sitemap_unit9.gif";
		mapoff=new Image(); mapoff.src="images/sitemap_base.gif";
	}
}

function rollOn(img1,img2,text){
	str="window.status = '"+text+"'";
	if(document.all)setTimeout(str,5);
	else window.status=text;
	if(document.images){
		document.unit.src=eval(img1+"on.src");
		document.map.src=eval(img2+"on.src");
	}
}
function rollOff(){
	window.status="";
	if(document.images){
		document.unit.src=unitoff.src;
		document.map.src=mapoff.src;
	}
}


function PreLoadOccupiers(){
	if (document.images){
		occ1on=new Image(); occ1on.src="images/occ1.gif";
		occ2on=new Image(); occ2on.src="images/occ2.gif";
		occ3on=new Image(); occ3on.src="images/occ3.gif";
		occ4on=new Image(); occ4on.src="images/occ4.gif";
		occ5on=new Image(); occ5on.src="images/occ5.gif";
		occ6on=new Image(); occ6on.src="images/occ6.gif";
		occ7on=new Image(); occ7on.src="images/occ7.gif";
		occ8on=new Image(); occ8on.src="images/occ8.gif";
		occ9on=new Image(); occ9on.src="images/occ9.gif";
		occ10on=new Image(); occ10on.src="images/occ10.gif";
		occ11on=new Image(); occ11on.src="images/occ11.gif";
		occ12on=new Image(); occ12on.src="images/occ12.gif";
		occ13on=new Image(); occ13on.src="images/occ13.gif";
		occ14on=new Image(); occ14on.src="images/occ14.gif";
		occ15on=new Image(); occ15on.src="images/occ15.gif";
		occ16on=new Image(); occ16on.src="images/occ16.gif";
		occ17on=new Image(); occ17on.src="images/occ17.gif";
		occ18on=new Image(); occ18on.src="images/occ18.gif";
		occ19on=new Image(); occ19on.src="images/occ19.gif";
		occ20on=new Image(); occ20on.src="images/occ20.gif";
		occoff=new Image(); occoff.src="images/blank.gif";
	}
}
function OccOn(img1,text){
	str="window.status = '"+text+"'";
	if(document.all)setTimeout(str,5);
	else window.status=text;
	if(document.images){
		document.occ.src=eval(img1+"on.src");
	}
}
function OccOff(){
	window.status="";
	if(document.images){
		document.occ.src=occoff.src;
	}
}