function flip(active) {
	
	var divs = document.getElementsByTagName('div');
	var numdivs = divs.length;
	
	for(var i = 0; i < numdivs; i++) {
		if(divs[i].className == 'flippage') {
			if(divs[i].id != active && divs[i].style.display != 'none') {
				new Effect.Fade(divs[i].id, { duration: 0.1 });
			}
		}
	}
	
	new Effect.Appear(active, { duration: 0.1, delay: 0.2 });

}