Effect.Open = function(element) {
  element = $(element);
  new Effect.SlideDown(element, { duration:0.6});
}

Effect.Close = function(element) {
  element = $(element);
  new Effect.SlideUp(element,{duration:0.6});
}


Effect.Slideing=function(element){
	element=$(element);
	if(element.style.display=='none'){
		new Effect.Open(element);
	}else{
		new Effect.Close(element, arguments[1] || {duration:0.7});
	}
}