Need help 'observe_field' to work in Safari or Konqueror

Konquerer isn't officially supported by Prototype.js which Rails uses
for it's Ajax stuff.

The latest version of Prototype is compatible with the following
Browser Version(s)
Mozilla Firefox ≥ 1.5
Microsoft Internet Explorer ≥ 6.0
Apple Safari ≥ 2.0
Opera ≥ 9.25

There should be no issue with Safari 3 or 2.

After a couple of days of tearing my hair out I have solved the problem
another way. I have ditched the use of the 'observe_field' helpers and
written the routine from scratch in java script.

Now it works in all of these browsers.

If anyone else stumbles accross this thread, I was greatly helped by
this howto: