How to Make a Pop Up Window and show there a mysql table for help input data?

I need know if 's possible show a mysql table like when you are entering some code product, you press an icon with ? (by example) and there appear the window showing the table with the code and the description and the you choose and pick some item from that table and the code pass to the input field, I saw this on asp but I think there it's possible create some on php with javascript, I am not sure what is the name of this technic. Thanks Regards JL