JavaScript Drag and Drop Problem

[easyCodes]

Hi actually i have a drag and drag script that works well on internet explorer but doesnot work on firefox here is the link from where u can download its files. please do comment your changes in .js file from where it starts working for firefox as well link is..
http://www.box.net/public/uixnux55lt
your help is always appriciated.
reards,
easyCodes

[easyCodes]

there is resize functionality as well.

[codeexploiter]

You can use Yahoo! User Interface Library to construct a compatible Drag & Drop effects in your pages.

[easyCodes]

Thank you for comments but its quite a different thing. i need table column drag and drop with resize functionality as well.