me da el siguiente error:
Line 42, Column 33: character "<" is the first character of a delimiter but occurred as data <form action="procesa_acceso.php?<?php echo session_name().'='.session_id()?>"
This message may appear in several cases:
* You tried to include the "<" character in your page: you should escape it as "<"
* You used an unescaped ampersand "&": this may be valid in some contexts, but it is recommended to use "&", which is always safe.
* Another possibility is that you forgot to close quotes in a previous tag.
he probado a poner el código de escape < como sujiere w3c pero entonces no me funciona...
salu2.