Thanks for reply. I have 5-6 fields in drop down. But when i click on "ManageAccount" option they only it should invoke. I tried in the following way.
Code:
  <select name=CATEGORY class=selInput onchange="onChange=go();">
<option value="sample1">sample1</option>
<option value="sample2">sample2</option>
<option value=\"#\"> ---------------- </option>
<option value="manageaccount"> manage accounts</option>
</select>

<head>
<script>
   function go() {
              window.location = "ozSetupOptValues.jsp?id=SLS_CUSTOMER_CATEGORY";
       }
</script>
</head>
It is calling the JS function when i choose every option. But i need to invoke the JSP when i choose "Manage Accounts" only. Can you an idea on this ??

thanks ..