fix bag upload javascript bug.  revert back to onfocus.  Refs #1671.  onkeypress almost worked, but users had to actually type something to get the 'submit' button to enable - so copying and pasting doesn't work.  textareas don't have an onchange method, so onfocus is the only thing that will work without doing something fancy.
fix bag upload javascript bug.  revert back to onfocus.  Refs #1671.  onkeypress almost worked, but users had to actually type something to get the 'submit' button to enable - so copying and pasting doesn't work.  textareas don't have an onchange method, so onfocus is the only thing that will work without doing something fancy.



Former-commit-id: bfda778bdd7e1702ffd4879a208fc0f133751f74
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine