The spacing is irrelevant, (perhaps I should have noted that) I simply used it for illustration purposes.

"LOTS" simply indicates several lines of HTML that include double-quotes, slashes, you name it. (Note: several lines)

my $page is also several lines of HTML, the contents of an entire file, actually.
I'm trying to replace multiple lines of code (compressed into a single string) in one big string (the entire file) with another string (more lines of code).

I hope this is somewhat clearer.