function openCatalog(IPaddress) {
	if (IPaddress.indexOf("161.97") == 0) {
		location.href = "http://infocentre.bvsd.org/InfoCentre/Library.do?library=BOH";
		return;
	} else {
		alert("The BHS Library Catalog is only accessible from BVSD computers.");
		return;
	}
}

function openWebmax(IPaddress) {
	if (IPaddress.indexOf("161.97") == 0) {
		location.href = "http://161.97.80.40/";
		return;
	} else {
		alert("WebMax/DIMC Booking is only accessible from BVSD computers.");
		return;
	}
}

function buttonExec(element, url) {
	var theBlock = document.getElementById(element);
	theBlock.className = "hidden";
	location.href = url;
}

function toggle(element) {
	var theBlock = document.getElementById(element);
	theBlock.className = (theBlock.className == "hidden") ? "show" : "hidden";
}

function hide(element) {
	var theBlock = document.getElementById(element);
	theBlock.className = "hidden";
}