Option label
<html> <body> <form name="form2" method="post" action=""> <select name="select1"> <optgroup id="optg1"> <option id="opt1_1">first</option> <option>second</option> <option>third</option> </optgroup> <optgroup id="optg2"> <option>first item in second group </option> <option id="opt2_2">second item in second group </option> <option>third item in second group </option> </optgroup> <script language="JavaScript"> document.getElementById("optg1").label = "first group"; document.getElementById("optg2").label = "second group"; </script> </select> </form> </body> </html>