By using existing code you reduce the likelihood of errors within your own script, solve problems you aren't aware of (yet), and save the most valuable resource you have: time.
A site on the internet today that does not at least attempt to comply with the scripting expectations of it's users will leave a lot to be desired. By sharing these scripts I hope to provide the tools necessary to enable your site to function cleanly and correctly for all of your visitors.
As time permits I hope to provide samples of as many of these as possible. Keep checking back.
Shawn K. Hall