Hi, I think I have a really simple problem, but I just cant find the solution on Google. This is my script: <p><input type="checkbox" name="major[]" value="Engineering">Engineering</p> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="5%"> </td> <td width="95%"><input type="checkbox" name="major[]" value="Computer Science">Computer Science<br> <input type="checkbox" name="major[]" value="Mechanical">Mechanical<br> <input type="checkbox" name="major[]" value="Manufacturing">Manufacturing<br> </td> </tr> </table> HTML: I would like the main button (Engineering) to automatically check when one of the sub-buttons has been checked. Is this just a simple HTML adjusment? Or should I add some javascript? Thank you!