XHTML 1.0 transitional validation
Some HTML forms don't validate against XHTML 1.0 transitional
The search form start with <table><form> and such sequences aren't possible (Solution: switch to <form><table>)
In XHTML, nowrap, selected and checked should be written nowrap="nowrap", selected="selected" and checked="checked".
Note : Some old browser can have problem with this syntax.
I attach a diff if you want to patch the file.
(issue imported from #M619)