print "<li> TAB 3 </li>";
<html> <head> <title></title> <script language="javascript"> function aff(){ document.getElementById('ma_div').innerHTML='mon texte' } </script> </head>
<?php print " "; print ""; print "<li> TAB 1 </li>"; print "<li> TAB 2 </li>"; print "<li> TAB 3 </li>"; print ""; print " "; print " "; print " "; print " "; ?>