function checkboxDateEffect(c, fieldprefix) {
	if (c.checked) {
		$("select[@name^='" + fieldprefix + "']").removeAttr('disabled');
	} else {
		$("select[@name^='" + fieldprefix + "']").attr('disabled','disabled');
	}
}

function checkboxJQDateEffect(c, fieldname) {
	if (c.checked) {
		$("input[name='" + fieldname + "']").removeAttr('disabled');
	} else {
		$("input[name='" + fieldname + "']").attr('disabled','disabled');
	}
}