function animateColor(_ctrl) {
    $(_ctrl).animate({ borderBottomColor: "#ff0000", borderLeftColor: "#ff0000", borderRightColor: "#ff0000", borderTopColor: "#ff0000" }, 1000);
}
function restoreColor(_ctrl) {
    $(_ctrl).animate({ borderBottomColor: "#999999", borderLeftColor: "#999999", borderRightColor: "#999999", borderTopColor: "#999999" }, 500);
}

function emailValid(src) {
    var emailReg = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;
    return emailReg.test(src);
}