instead of onblur, but give it a delay so that (a) we're not sending
too many queries and (b) so that it doesn't appear at the exact same
time as you click Submit Bug (making the "Submit Bug" click not work)
r=timello, a=mkanat
git-svn-id: svn://10.0.0.236/branches/BUGZILLA-4_0-BRANCH@260816 18797224-902f-48f8-a5cc-f745e15eee43