Jquery文本水印

<ol>
    <li>
         <label for="d4-address">Address</label>
          <textarea id="d4-address" name="d4-address" rows="4" cols="60"></textarea>
     </li>
     <li>
            <label for="d1-country">Country</label>
            <input id="d1-country" />
     </li>
     <li>
            <label for="d1-password">Password</label>
            <input id="d1-password" type="password" />
     </li>
</ol>

.watermark
{
      color: #999 !important;
}

$(function() {
            $("#d1-country").watermark("test1");
            $("#d1-password").watermark("test2");
            
 });