function js_catalogMenuShow(id, catalog){

	var el = $(id);

	if(el.style.display == 'none'){
		//el.style.display = '';
		//new Effect.Appear(id,{duration:0.5});
		//new Effect.SlideDown(id,{duration:0.2});
		new Effect.Parallel(
			[
				new Effect.Opacity(id,{from:0, to:1, sync:true}), 
				new Effect.SlideDown(id, {sync:true})
			],
			{duration:0.5}
		);
		
		//$('catalogDis').innerHTML = catalog;

	}
	else{
		//el.style.display = 'none';
		new Effect.SlideUp(id,{duration:0.2});
		
		//$('catalogDis').innerHTML = 'Please Select';
		
	}

}