sfHover = function() {
	var sfEls = document.getElementById("menu").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

var prevFrame = '';

function slideFrame(thisID) {
	//we want to see thisID
	if(prevFrame) {
		//already previous frame
		new Effect.Fade(prevFrame);
		new Effect.Appear(thisID, {queue: 'end' });
	}
	else {
		//first frame change, turn maps off
		new Effect.Fade('gal_3');
		new Effect.Appear(thisID, {queue: 'end' });
	}
	prevFrame = thisID;
}
function sliderFrame(thisID) {
	//we want to see thisID
	if(prevFrame) {
		//already previous frame
		new Effect.Fade(prevFrame);
		new Effect.Appear(thisID, {queue: 'end' });
	}
	else {
		//first frame change, turn maps off
		new Effect.Fade('md1792');
		new Effect.Appear(thisID, {queue: 'end' });
	}
	prevFrame = thisID;
}