$html =~ s/foo/bar/;
		$html =~ s/baz/quux/;
		$html =~ s/monkey/pants/;

##</code><code>##

		$html =~ s/foo/bar/;
		
		if($baz_quux_replacement_required){
				$html =~ s/baz/quux/;
		}
		
		$html =~ s/monkey/pants/;

##</code><code>##

		$replacements =
			[
				['foo','bar'],
				['baz','quux']
			];

##</code><code>##

		$replacements =
			{  
				fix_foo => ['foo','bar'],
				fix_baz => ['baz','quux']
			};