window.onload = function(){

if($('klik')) {	
	$('klik').onclick = function(){
		$('gielda').setStyle('visibility','hidden');
		var slider = new Fx.Slide($('gielda'));
		slider.toggle();
	
	};
}
$(document.body).getElements('a.log_in').addEvents({
    "click": function(){
          	var slider = new Fx.Slide($('log_men'));
			if($('log_menu').getStyle('display') == 'none') {
				$('log_menu').setStyle('display','block');
			}
			else {
				$('log_menu').setStyle('display','none');
			}
			slider.toggle();
		}});
};