test not working well for radio button when I have 1 element of list

[Kyupa Supa]

A list of courses is displayed and user has to select 1, so I used radio buttons. The course list vary from one student to another.

If I have more than 1 courses displayed and user selects one, everything is ok, but if I display 1 course, the test is JavaScript seems to not be right...

Validate if radio button(a course) was checked:

function validate2() {
                //validate radio buttons(if a course is selected)
                var n = document.entry2.courses.length;
                ok = 0;
 
                for(var i = 0; i < n; i++){
                    if(document.entry2.courses[i].checked){
                        ok++;
                        break;
                    }
                }            
 
                if((document.entry2.ex.checked == true)||
                  (document.entry2.sem.checked == true)||
                  (document.entry2.lab.checked == true)||
                  (document.entry2.pro.checked == true)){
                    ok++;
                }
 
                if(ok == 2){
                    return true;
                }else{
                    alert("Please select 1 course and at least 1 activity! ok=" +ok);
                    return false;
                }                
            } 

If I have 1 course, ok = 1 (due to textbox(es) only, ignoring the selected course). ok = 2 so the form will be submitted

[Eric Pascarello]

The way way back machine has a solution: http://www.coderanch.com/t/115796/HTML-CSS-JavaScript/inconsistency-radiobutton

Eric

[Bear Bibeault]

Or use jQuery and forget about inconsistencies.