Hello, I have a WebGrid with 4 colums:

STATUS | TRIGRAM| NAME | FIRM

Status is a WebCombo which contains: Intern or Extern.

When i select "Extern" in the dropdownlist it should show the following colums:

STATUS | TRIGRAM| NAME 

and when i select "Intern"(this should be the default value) :

STATUS | NAME | FIRM

how can i do that ?

here is my code so far: 

 function WebCombo3_OnAfterItemSelected(controlId) {
            var WebCombo3 = ISGetObject("WebCombo3");
            var grid = ISGetObject("WebGrid1");
            var selectedStatus = WebCombo3.GetSelectedRow().cells[0].innerText
            if (selectedStatus == "Intern ") {
                alert("Intern is selected")
            }
            else if (selectedStatus =="Extern ") { 
            alert("Extern is selected")
            }
            return true;
        }

Thanks in Advance for your help