Forums Scripts & Popups Dialog Drop Down Menu

Hey guys i am trying to make a dialog pop up and there is a section of th epop up that i want to put a drop down menu , right now its liek this:

edit "NameA", 3, 20 60 70 20

I do not want that i want to be able to click the drop down arrow and it will so me a list of names; NameA, NameB , NameC and so on preferably reading them form a .txt

Thanx in advance

ok i got this far now

combo 3, 20 60 70 20, drop edit

Now i need to set it to read from a txt file when the dialog/pop up starts

And also when I select for example NameB it loads another txt combo drop down box beside it
or If i select NameC it loads C.txt combo box beside it

Any one think you can help me?