Jquery each使用

function selectChanged(target, containerId) {
var value = target.options[target.selectedIndex].value;
var cont = $("#" + containerId);
switch (value) {
default:
$("input", cont).each(function () {
$(this).attr("disabled", "");
$(this).css({ background: "white" });
});
break;
case "0":
case "none":
case "hidden":
$("input", cont).each(function () {
$(this).val('');
$(this).css({ background: '#F0F0F0' });
$(this).attr("disabled", "disabled");
});
break;
}
}