Resolved - Check ListBox for selection

I have rows in a table that are populated from a database.
The first field is a textbox called txtRank, this is where the user enters the rank for this particular item.
If the rank is greater than 0, then a listbox appears (named cboEnhancement_<GUIDFROMDATABASE>) and the user must select at least one item from the listbox.

What I need to do in javascript is loop through all of the txtRank elements, if they have a value greater than 0, then I need to check the cboEnhancement listbox for this row to make sure they have selected at least one option.

Here's what I have so far, it works but I just don't know how to check the associated listboxes selections.

Code:

---

function CheckRankAndVersions()
{
  // If the rank is greater than 0, then make sure they
  // have selected a version for the enhancement
  for (i=0; i<document.forms[0].elements.length; i++)
  {
      if(document.forms[0].elements[i].name == "txtPriority")
      {
        if(document.forms[0].elements[i].value > 0)
        {
            //This gets the value of the txtRank textbox
            alert("Greater than 0: " + document.forms[0].elements[i].value);

            //Need to check the listboxes selections here
        }
      }
  }
}

---

I'm just a little confused how to associate a particular row txtRank with the same rows cboEnhancement listbox.

Any ideas how this can be done?

BTW, rewriting this isn't an option, this is just a small part of a large application.

Well, you're guaranteed, I think, that form elements are added in source order to the elements array. Thus you should be able to calculate an offset in the elements array.