var selection; 
				
function load (target, caption,caller) {
	document.images['displaytarget'].src=target; 
	document.images['displaytarget'].alt=caption; 
	document.getElementById('caption').innerHTML=caption;
	if (selection != null) {					
	  selection.style.border = '1px solid white';}
	selection = caller;					
	selection.style.border = '1px solid black';
	return true;
}
			
function onMI (o) {
	o.style.background='#ffffcc';
}
				
function onMO (o) {
	o.style.background=document.body.style.background;
}