function blockShow(blck, blckbtn) {
	var queue = Effect.Queues.get(blck);
	if($A(queue).length == 0) {
		Element.addClassName(blckbtn, 'active');
		new Effect.BlindDown(blck, {duration: 0.5, transition: Effect.Transitions.sinoidal, queue: {position: 'end', scope: blck}, afterFinish: function() {new Effect.SlideUp(blck, {duration: 0.5, delay: 3, transition: Effect.Transitions.sinoidal, queue: {position: 'end', scope: blck}, afterFinish: function() { Element.removeClassName(blckbtn, 'active'); } }); }});
	}
}