var cached=0;

if (document.images){

the_egham_off = new Image()
the_egham_off.src = "/navbar/egham.gif"
the_egham_on = new Image()
the_egham_on.src = "/navbar/egham_on.gif"

the_ferrari_off = new Image()
the_ferrari_off.src = "/navbar/ferrari.gif"
the_ferrari_on = new Image()
the_ferrari_on.src = "/navbar/ferrari_on.gif"

the_maserati_off = new Image()
the_maserati_off.src = "/navbar/maserati.gif"
the_maserati_on = new Image()
the_maserati_on.src = "/navbar/maserati_on.gif"

the_sevenoaks_off = new Image()
the_sevenoaks_off.src = "/navbar/sevenoaks.gif"
the_sevenoaks_on = new Image()
the_sevenoaks_on.src = "/navbar/sevenoaks_on.gif"

the_st_albans_off = new Image()
the_st_albans_off.src = "/navbar/st_albans.gif"
the_st_albans_on = new Image()
the_st_albans_on.src = "/navbar/st_albans_on.gif"

cached=1;
}

function imageOn(imgName) {
	if (cached==1) {
	lineOn = eval("the_" + imgName + "_on.src");
	document [imgName].src= lineOn;
	}
}

function imageOff(imgName) {
	if (cached==1) {
	lineOff = eval("the_" + imgName + "_off.src");
	document [imgName].src= lineOff;
	}
}