function over(element) {
	if(element.className != "current") {
		var img = element.src;
		img = img.replace(/_off/, "_on");
		element.src = img;
	}
}
function out(element) {
	if(element.className != "current") {
		var img = element.src;
		img = img.replace(/_on/, "_off");
		element.src = img;
	}
}