If readability is the goal then how about something like this:

sub foo
{
    return "some output from foo\n";
}

    print <<'    EOPAGE';

    some stuff
    some more stuff
    EOPAGE

print foo();

    print <<'    EOPAGE';
    yet more stuff
    EOPAGE
[download]

Use the "print <<" construct for ONLY the static html and then call your functions directly. If you indent the different prints at different levels, it will be really easy to pick out which ones are which.

An alternate solution to consider is using one of the html template systems. This would be some work to convert your existing code over, but it could be worth it.

I'm going to go out on a limb and bet that you're wanting your code to look something like:

--------------------------------------
#!/usr/bin/perl
Here's all my perl code
where I set my variables and do my logic

print <<EOP;
 here's all my html where I put in my $vars and @foos
EOP
---------------------------------------
[download]

so that all your html is in one place and your code in another right? Check out http://www.cpan.org/modules/by-module/HTML/HTML-Template-2.2.readme

/\/\averick