input[type="text"].unique-entry-text-field {
    background-image:url('loading.gif');
    background-position:left center;
    background-repeat:no-repeat;
    padding-left:46px;
}

input[type="text"].unique-entry-text-field.uetf-good {
    background-image:url('good.png');
}

input[type="text"].unique-entry-text-field.uetf-bad {
    background-image:url('bad.png');
}

input[type="text"].unique-entry-text-field.uetf-error {
    background-image:url('error.png');
    cursor:no-drop;
}