Display data on the selected text file

Hi all i have write my code to display the text file under a child node like if i click on child node and for that child node if any text file is saved i will display it under that node. But now what i need is if i have my mouse over that text file i would like ti display a form and in that form i would like to display the particular data.

Ex :

                 Parent

                   |-> Child

                            |->a.txt

In this a.txt i will have some data like ABC 123 XYZ and so on

If i have my mouse over that i would like to have some thing like Name   ABC

                                                                                                         No 123

                                                                                                           Address Xyz

Can any one help me out