function cimg(name,ov){
	if (document.images[name]){
		document.images[name].src = "images/menu/" + name + ((ov == 0)?"over":"") + ".gif";
	}
}

function popup(url, title, W, H, features)
{
	var X = Math.ceil((window.screen.availWidth - W) / 2);
	var Y = Math.ceil((window.screen.availHeight - H) / 2);
	features = "width=" + W + ", height=" + H + ", left=" + X + ", top=" + Y + ", " + features;
	window.open(url, title, features);
}


function goToURL( url )
{
	document.location.href = url;
}