Pop-up LOV, add Element Attributes?

Hello again,
I have a pop-up LOV (named LOV) on a column in the detail section of a master-detail form (imagine the "Employee Num" being a pop-up LOV in the image linked below[1]). This field also allows normal user entry just like any input field (this is, input is not disabled).
However, while viewing the source HTML this field just an ordinary input field, I cannot seem to add an element attribute via the usual means. Just for arguments sake I want an alert box on each keypress, usually I would just add the line: onkeypress="javascript: alert('hello');" in the Element Attributes under the "Column Attributes" section. This is not working for me, however.
How would I go about calling a JavaScript function (on a keypress, say) using this pop-up LOV input method?
Thank you for you time.
I am using APEX version: 4.0.2.00.09
[1] http://imageupload.co.uk/viewer.php?file=yu7i83h5dpk5cy0npsy0.png
Edited by: 986065 on Feb 14, 2013 1:51 PM

Hello Bob,
Sure you can enter a button on the template, but the problem is how to find out which page to call when the Add button is pressed.
You can write your own LOV page(s) and attach those to a field (i.e. by adding a clickable image in the post element text) and then you can have all the control you want.
Greetings,
Roel
http://roelhartman.blogspot.com/
http://www.bloggingaboutoracle.org/
http://www.logica.com/

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