Set value of a repeating field equal to the value of other repeating field

Sir,

I have a table of 2 columns and a repeating row (Row2)  of which Cell1 is a Dropdown field  and Cell2 is a Text Field   I have another subform which is also repeatable which as Textfield. 

Now i want that whenever user selects the Dropdown the same value should be set to the Textfield (in the Subform).  

if user adds 5 rows in the table and select value a, b,c,d,e in the dropdowns then the 5 textfield in the  subform should also be set to a,b,c,d,e 

attached is the actual AEM form    ... in this form i want "Raised By"    field to be always equal  to the dropdown field "Team. Member"   

https://www.dropbox.com/s/ywd7rdh00ywn4u1/Setting%20field%20value%20of%20repeatable%20form%20to%20ot...

Thanks