yep, sorry about that. I was in a rush and didn't think to make myself clear.

I think I may have found the answer with the TCL/Tk browser plugin and using

Tk::DragDrop; Tk::DropSite;

OK, this is all in the web browser. Users would be heavily netscape and IE biased.

I'm fine with DBI, CGI modules. That end of things is all covered.

I just want some nice way of enabling the user to choose which column from one table maps to another column in another table. I could do this by listing all columns for each table with a text box next to each one and the user then puts in a code (1 or 2 or 3 etc) in order to identify which column from one table joins a column in another table. i.e columnA from table1 might map to columnC from table2, so I would put a 1 in each of the boxes.

This seems rather messy and so I thought there must be a way, in an applet say, of dragging and dropping one column onto another annd noting the coordinates of the start position and the end.

cheers