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Resetting a Text Object to Default Value

< html>  <head>  <title>Text Object DefaultValue</title>  <script type="text/javascript">  function upperMe(field) {      field.value = field.value.toUpperCase();  }  function resetField(form) {      form.converter.value = form.converter.defaultValue;  }  </script>  </head>  <body>  <form onsubmit="window.focus(); return false">  Lowercase letters: <input type="text" id="convert" name="converter" value="sample" onchange="upperMe(this)" />  <input type="button" id="reset" value="Reset Field" onclick="resetField(this.form)" />  </form>  </body>  </html>