Loading arrays

i have a group of dynamically created textfields tagged by an "id=idesc",
and another group of dynamically created textfields tagged by an "id=ipno".

what i need to do is loop through the number of created textfields (numItems) and store the results in an array.

I'd like to have each array element to consist of a desc and a pno
so the array would look like this:

array[0] = desc1, pno1
array[1] - desc2, pno2
array[2] - desc3, pno3
array[3] - desc4, pno4
.
.
.
array[n] - descn, pnon

Could someone tell me how to fix this code:

  function submitSave()
  {
     var i;
     var iarray  = new Array();
     var iDescriptionValue = new Array();
     var iPartnoValue = new Array();

     for (i=0; i<numItems; i++)
     {
         document.getElementById("idesc") = iDescriptionValue;
         document.getElementById("ipno")  = iPartnoValue;
         iarray[i] = array(iDescriptionValue, iPartnoValue);
         alert(iarray);
     }
}

Code (markup):

 

How do i extract the value from a textfield?