This one is driving me nuts. It’s got to be something simple and stupid that I am overlooking.
I have a multiple select box in a form. I am just trying to get the values that are selected. In my loop, if I use alert then I have no problem. As soon as try to concatenate the values I get the error ‘SelBranch[...].selected' is null or not an object

      <form name=InventoryList method=post action=InventoryList.asp>

          <select name=SelBranch class=bnotes size=5 multiple=multiple>

          <option value=All>All</option>

          <option value=001 Renton>001 Renton</option>

          <option value=002 Spokane>002 Spokane</option>

          <option value=003 Missoula>003 Missoula</option>

          <option value=004 Chehalis>004 Chehalis</option>

          <option value=005 Portland>005 Portland</option>

          <option value=006 Anchorage>006 Anchorage</option>

          <option value=018 PDC>018 PDC</option>

          </select>



         <input type=button name=ViewReport value=View class=bnotes onclick=GetInventory();>



   </form>





   <script language=JavaScript>

       function GetInventory()

       {

         var InvForm = document.forms.InventoryList;

         var SelBranchVal = ;

         var x = 0;



         for (x=0;x<=InvForm.SelBranch.length;x++)

         {

            if (InvForm.SelBranch[x].selected)

            {

             //alert(InvForm.SelBranch[x].value);

             SelBranchVal = SelBranchVal + , + InvForm.SelBranch[x].value;

            }

         }

         alert(SelBranchVal);

       }





  </script>