var menuRozwiniete;
function PokazUkryj(id){
	var subcategory=document.getElementById('subcategory_'+id);		
	//alert(subcategory.style.display);
	if(subcategory.style.display=='none'){
		if(menuRozwiniete){
			menuRozwiniete.style.display='none'
		}
		subcategory.style.display='block';
		menuRozwiniete=subcategory;
	}
	else{
		subcategory.style.display='none';
	}
}
/*
function pokaz(id){
	var subcategory=document.getElementById('subcategory_'+id);
	subcategory.style.display='block';
	menuRozwiniete=subcategory
}*/