function viewBG() {
		$$('.viewBG').each(function(e) {
			new Effect.Fade(e);							
		});	
	}
	function viewContent() {
		$$('.viewBG').each(function(e) {
			new Effect.Appear(e,{to: (e.hasClassName('transparenz')?0.8:1)});							
		});	
	}