[$ if 1 $]
    [$ if 1 $]
         [# FUNKY HTML NAV #]
    [$ endif $]
    [$ if 1 $]
        [- $xxx = 'Hello World' ; Execute({inputfile => 'xxx', 'input' => \$xxx}) -]
    [$ else $]
    [$ endif $]
[$ endif $]