anchor.diff:  <script type="text/javascript">
       function CheckPlatformVendor(vendor) {
           if (vendor != "Agilent") {
  +            document.getElementById("platformName").value = " ";
               document.getElementById("platformName").disabled = true;
           } else {
  -            document.getElementById("platformName").value = "";
               document.getElementById("platformName").disabled = false;
           }
       }
  
positive.code:             <th colspan="2">
                  <s:select name="platformVendor" label="Vendor"
                      list="@gov.nih.nci.caintegrator2.application.arraydata.PlatformVendorEnum@getValuesToDisplay()"
                      onchange="CheckPlatformVendor(this.form.platformVendor.value);" />
                  <s:textfield id="platformName" name="platformName" label="Platform Name (only needed for Agilent)" />
                  <s:file name="platformFile" label="Annotation File" />
                  <s:hidden name="selectedAction" value="addPlatform" />
                  <s:submit value="Add" align="center" />
  
negative.code:         </s:iterator>
      </table>
  </s:form></div>
  
  <div class="clear"><br />
  </div>
  