Dynamic drop downs with using seperate forms

[lprais]

I have found code to create dynamic drop downs. My problem is I can get the drop down to work by itself.

Let me explain, As you will see in the attached code each drop down is in its own form(I have commented them out to show how it looks when it is failing.). If I keep it that way it works correctly but if I try to incorprate the code into one of my other forms and eliminate the individual forms around the drop downs and modify the onchange to move to another drop down within the form instead of changing to another form it fails.


I get the following error:

document.forms[formNum] has no properties.


Any help would be greatly appreciated.

Thanks
Lance