function select_menu(menu){

	menus = 3;

	for(var i = 3 ; i <= menus ; i++){
		if(menu == i){
			Effect.toggle('lm_'+i+'_tohide', 'blind',{ duration: 0.5 });
		}else{
			Effect.BlindUp('lm_'+i+'_tohide', { duration: 0.5 });
		}
	}
}