function toggleDisplay(indicator, object){
	if (document.getElementById(object).style.display=='') {
		document.getElementById(object).style.display='none';
		document.getElementById(indicator).src='/images/plus.gif';
	}
	else {
		document.getElementById(object).style.display='';
		document.getElementById(indicator).src='/images/minus.gif';
	}
}

function toggleVis(object){
	if (object.style.visibility=='visible') {
		object.style.visibility='hidden';
	}
	else {
		object.style.visibility='visible';
	}
}