function showHideBottom(element){
	element = $(element);
	if (element.isSliding) return;
	
	if (element.style.display =='none') {
		element.isSliding = true;
		new Effect.BlindDown(element,{
				duration:0.5,
				afterUpdate:function(){
					window.scrollTo(0,Position.realOffset(element)[1]+Element.getHeight(element));
				},
				afterFinish:function(){element.isSliding = false;}
			});
	} else {
		element.isSliding = true;
		new Effect.BlindUp(element,{
			duration:0.5,
			afterFinish:function(){element.isSliding = false;}
			});
	}
}