javascript dhtml and browser variations

Anyone care to point me to,or name a succinct group of browsers that will
cater for 'most' flavours?

I seem to be coding for each and every browser I try, there again it may be
my code.

degrading isn't the word.

jonathan chetwynd
IT teacher (LD)
j.chetwynd@btinternet.com
http://www.signbrowser.org.uk