function clearSelectList(selList)
	{
		for (var i = 0; i < (selList.options.length - 1); i++ )
		{
			selList.options[i + 1] = null;
		}
		selList.options.length = 1;
	}

	function setDisplay(elId, dispMode)
	{
		var obj = document.getElementById(elId);
		if (obj)
		{
			obj.style.display = dispMode;
		}
	}

	function changeArea(areaId)
	{
		if (areaId != 0)
		{
			// todo: add wait img
			callNAJAXFunc('getAreaTowns', 'frmStoreFind', areaId);
		} else {
			// todo: hide wait img
			setDisplay('town', 'none');
			setDisplay('townTitle', 'none');
			setDisplay('vsBtn', 'none');
		}
	}