function showContent(tab, num){
	//alert(num);
	if (tab == 'main'){
		if (curentMain){
			var contentOldId = 'ulMain'+curentMain;
			new Effect.BlindUp(contentOldId,{ duration: 0.3 });
		}
		var contentNewId = 'ulMain'+num;
		new Effect.BlindDown(contentNewId,{ duration: 0.3 });
		curentMain = num;
		if (curentSub){
			var contentOldId = 'ulSub'+curentSub;
			new Effect.BlindUp(contentOldId,{ duration: 0.3 });
			curentSub = 0;
		}
	} else {
		if (curentSub){
			var contentOldId = 'ulSub'+curentSub;
			new Effect.BlindUp(contentOldId,{ duration: 0.3 });
		}
		var contentNewId = 'ulSub'+num;
		new Effect.BlindDown(contentNewId,{ duration: 0.3 });
		curentSub = num;
	}

}