Okay,
Assume forms 2, 3, and 4 are HTML files and which_form is the name of the <select> in form 1:-
<?php
switch($which_form) {
case "two":
Header("Location: /path/to/form/2.html");
break;
case "three":
Header("Location: /path/to/form/3.html");
break;
default:
Header("Location: /path/to/form/default.html");
break;
}
?>
or you can simplify it in one line:
<?php Header("Location: /path/to/form/" . $which_form . ".html"); ?>
or call fread on the HTML:
<?php
$fd = fopen("/path/to/form/" . $which_form . ".html");
$contents = fread($fd, fsize("/path/to/form/" . $which_form . ".html"));
fclose($fd);
print $contents;
?>
hope I'm answering your question :-)
-sridhar