function expandOptions(b,ob){
	var myBrothers;
	var myCousins;
	var myParent = ob.getParent('div');
	
	if(b){
		ob.setStyle('display','none');
		myBrothers = myParent.getChildren('.less_options');
		$$(myBrothers).setStyle('display','block');
		
		var showCon = new Fx.Tween(myParent, {
			duration : 700,
			onComplete : function() {
				
			}
		}).start('max-height', 1000); 
	}
	else{
		var showCon = new Fx.Tween(myParent, {
			duration : 700,
			onComplete : function() {
				
			}
		}).start('max-height', 77); 	
		
		ob.setStyle('display','none');
		myBrothers = myParent.getChildren('.more_options');
		$$(myBrothers).setStyle('display','block');
	}
}

function reset_filter(ob){
	$$('.uncheck-me').each(function(el) { el.checked = false; });
	$$('label.checked').setProperty('class', 'unchecked' );
	
	$$('.n2Select2').set('value', '');
	$$('.n2Select2-anchor').set('html','- Wybierz rozmiar -');
}