function OpenSsMenu( IdMenu ){
	var Menu = $( IdMenu );
	if( Menu.getStyle( 'display' ) == "none" ){		
		new Effect.SlideDown( IdMenu, { duration: 0.4 } );			
	}else{		
		new Effect.SlideUp( IdMenu,  { duration: 0.4 });			
	}	
	
}