var doneAlert=false;

function toggleContentVisibility(Condition,IDlist) {
	if (document.getElementById) {
		if (Condition) {var strState="block"} else {var strState="none"}
		var arrIDs=IDlist.split(",");
		for (var i=0; i<arrIDs.length; i++) {if (document.getElementById(arrIDs[i])) {document.getElementById(arrIDs[i]).style.display=strState}}
		}
	else {
		if (doneAlert==false) {
			alert("Your web browser does not support the features required to use this system,\nplease use Internet Explorer (version 5.5 or higher), Safari or Firefox");
			doneAlert=true;
			}
		}
	}