function showSubitems(item_id, lista, sub_id_lista) {
	
	
	// chowamy subkontenery
	var sub_lista = sub_id_lista.split(";")
	
	for(var prop in sub_lista) {
		var cont = document.getElementById("cont_"+sub_lista[prop]);
		if(cont!=null) {
			
			cont.style.display = "none"
			cont.style.position = "absolute";
			}	
	}
	
	var current_menu_cont = document.getElementById("cont_"+item_id);

	var list = lista.split(";")
	for(var prop in list) {

		var menu_cont = document.getElementById("cont_"+list[prop]);
		var menu_item = document.getElementById("item_"+list[prop]);
		
		
		if (menu_cont!=null && current_menu_cont!=menu_cont) {
			//menu_cont.style.display = "none";
		
			menu_cont.style.display = "none";
			menu_cont.style.position = "absolute";
			menu_item.style.borderBottom = "1px dashed #94ed2c"
			
		} else if (current_menu_cont==menu_cont) {
			
			menu_cont.style.position = "relative";
			menu_cont.style.display = "block";
			menu_item.style.borderBottom = "1px dashed #befd74"
			}
		
		
		var img_str = "img_"+list[prop];
		var img = document.getElementById(img_str);
		if(img!=null) {
			img.src ="images/menu_decor.jpg"	
		}
			
		var arrow_str = "arrow_"+list[prop]
		var arrows_arr  = document.getElementsByName(arrow_str)
		
		var current_arrow_str = "arrow_"+item_id;
		
		if(arrow_str!=current_arrow_str) {
			for(var i=0; i<arrows_arr.length; i++) {
				arrows_arr[i].style.visibility = "hidden"
			}
		} else {
			
			for(var i=0; i<arrows_arr.length; i++) {
				arrows_arr[i].style.visibility = "visible"
				var temp = arrows_arr[i];
			}
		}
	
	}
	
	// zmieniamy wyglad strony glównej
	document.getElementById('img_0').src = "images/menu_decor.jpg"
	document.getElementById('item_0').style.borderBottom = "1px dashed #b6e85e"
	var img_str = "img_"+item_id;
	document.getElementById(img_str).src = "images/menu_decor_ext.jpg"
}

function showLevel3(menu_id, subitem_id, lista_id, sublista_id, subsublista_id) {
	//alert(document.getElementById("item_"+menu_id).style.visibility)
	//alert(document.getElementById("cont_"+menu_id).style.visibility)
	//alert(document.getElementById("item_"+subitem_id).style.visibility)
	
	var current_menu_cont = document.getElementById("cont_"+subitem_id);
	
	//alert(current_menu_cont.style.display)
	var sublista = sublista_id.split(";")
	for(var prop in sublista) {
		var menu_cont = document.getElementById("cont_"+sublista[prop])

		if(menu_cont!=null && current_menu_cont!=menu_cont) {
			menu_cont.style.display = "none"
			menu_cont.style.position = "absolute"
		
			
		} else if(current_menu_cont==menu_cont) {
			current_menu_cont.style.visibility = "visible"
			current_menu_cont.style.display = "block"
			current_menu_cont.style.position = "relative"
			}
	}
	
	// pokazujemy itemy w kontenerze
	var subsublista = subsublista_id.split(";") 
	
	for(var prop in subsublista) {
		var item_obj = document.getElementById("item_"+subsublista[prop])
		if(item_obj!=null) {
		item_obj.style.visibility = "visible"
		}
	}
	
	//alert(current_menu_cont.style.display)
//	alert(current_menu_cont.style.visibility)
//	alert(current_menu_cont.style.position)
	
}







function checkMail(field_id, form_id) {
	var emailValue=document.getElementById(field_id).value;
	
	var wzorzec = '^[a-zA-Z0-9.-_]+@[a-zA-Z0-9-.]+.[a-zA-Z]{2,4}$';
	var result = emailValue.match(wzorzec);
	
	if(result==null) {
		alert("To nie jest poprawny adres email");
		document[form_id].email_txt.value = "Wpisz jeszcze raz swój adres email";
		return false
	}else {
		document[form_id].submit();
	}
}