function lightOff(img) {
	var regExp = /-on.gif/g;
	img.src = img.src.replace(regExp, "-off.gif");
}

function lightOn(img) {
	var regExp = /-off.gif/g;
	img.src = img.src.replace(regExp, "-on.gif");
}

function loadUrl(url){
	window.location = url;
}

function closeAndRefresh(){
	window.opener.location.reload();
	window.close();
}

function openWin(url, name){
	window.open(url,name, "width=300,height=240,left=340,top=200,scrollbars=yes,resizable=yes");
}