var spawn = 0;
function popup (url,width,height) {
	if(spawn) spawn.close();
	theUrl = url;
	theWidth = (width) ? width : 500;
	theHeight = (height) ? height: 400;
	leftPosition = (screen.width) ? (screen.width-theWidth)/2 : 0;
	topPosition = (screen.height) ? (Math.round(((screen.height-theHeight)/2)*0.9)) : 0;
	settings='width='+theWidth+',height='+theHeight+',left='+leftPosition+',top='+topPosition+',menubar=yes,toolbar=no,status=no,scrollbars=yes,resizable=yes';
	spawn = window.open(theUrl,'popupwindow',settings);
}


function toggleDivByCheckBox(checkBoxId, divId) {
	if(checkBoxId && divId && document.getElementById(checkBoxId) && document.getElementById(divId)) {
		if(document.getElementById(checkBoxId).checked) {
			document.getElementById(divId).style.display='block';
		} else {
			document.getElementById(divId).style.display='none';
		}
	}
}


function favoris() {
	bookmarkurl = top.location.href;
	bookmarktitle = top.document.title;
	if (navigator.appName != "Microsoft Internet Explorer") {
		window.sidebar.addPanel(bookmarktitle, bookmarkurl, "");
	} else {
		window.external.AddFavorite(bookmarkurl, bookmarktitle);
	}
}