InfoPath Dev

I have programmatically cloned a row from a repeating table which has repeating tables nested within with a structure as follows:

my:firstgroup/my:firstrepeatinggroup/my:secondgroup/my:secondrepeatinggroup/my:thirdgroup/my:thirdrepeatinggroup

My clone node works but I then need to iterate through each row of the clone to change a UID value. This value is repeated for each row of the nested repeating tables also. IE within my:firstrepeatinggroup/my:1stid  my:secondrepeatinggroup/my:2ndid etc. I have managed to iterate successfully through the first and second levels but my if statement seems to fail me on the third:

 if ( 3rdIDfield.nodeTypedValue == 2ndIDfield.nodeTypedValue && 3rdIDfield.nodeTypedValue !== "")

If I understand this correct if the 3rdIDfield is not blank and is the same as 2ndIDfield then returns true. But alas no! Can someone help me out here?

Thanks

I cannot delete this post but I have found out where the probem was. Firstly I changed the statement to include more brackets...

 if ( (3rdIDfield.nodeTypedValue == 2ndIDfield.nodeTypedValue) && (3rdIDfield.nodeTypedValue !== ""))

I created a variable to ascertain the ID for the cloned row:
 var 2ndIDfield = 2ndList.item(x).selectSingleNode("my:2ndItemID");
Then I set the value of the ID of the cloned row to the next unique ID:
 2ndList.item(x).selectSingleNode("my:2ndItemID").nodeTypedValue = newWorkItemID;

My subsequent for...if statements compared the value of the variable 2ndIDfield.nodeTypedValue. I expected this variable to retain the original value and not retain reference to the actual node thereby altering as I changed the values within the cloned row.

Well i know this now, and apologies if this rambling makes no sense.....