Question

I want a random homepage (from a predefined list) to show up when I click a link. And really this is Two questions so question one, is it possible? If yes then how?

What if the file are in different folders?
Would the code then look like this?

var arrPages = [   'http://neo.graceland.edu/~rmthomas/gothyc%20cafe/feyra/feyra.html', 'http://neo.graceland.edu/~rmthomas/gothyc%20cafe/rayne/rayne.html', 'http://neo.graceland.edu/~rmthomas/gothyc%20cafe/adrienna/adrienna.html', 'http://neo.graceland.edu/~rmthomas/gothyc%20cafe/averya/aveyra.html', 'http://neo.graceland.edu/~rmthomas/gothyc%20cafe/demaen/demaen.html', 'http://neo.graceland.edu/~rmthomas/gothyc%20cafe/phoenyx/phoenyx.html', 'http://neo.graceland.edu/~rmthomas/gothyc%20cafe/raven/raven.html', 'http://neo.graceland.edu/~rmthomas/gothyc%20cafe/trysten/trysten.html', 'http://neo.graceland.edu/~rmthomas/gothyc%20cafe/xiandre/xiandre.html'];
    document.getElementById('13').onclick = function () {
        var randUrl = arrPages[Math.floor(Math.random() * arrPages.length)];
        // Redirect/popup/new tab
        window.open(randUrl,'test');
    }

Answer 1

// A predefined list of pages
        var arrPages =
            [
                'http://google.com',
                'http://yahoo.com',
                'http://xtra.co.nz',
                'http://asdf.com'
            ];

        // Get the element
        var aLink = document.getElementById('aLink');

        // Bind the click event of aLink
        aLink.onclick = function () {

            // Get an integer that'll determine the index of arrPages to access
            var randomInt = Math.floor(Math.random() * arrPages.length);

            // Get the element with an index of randomInt
            var randUrl = arrPages[randomInt];

            // Here you can do whatever you like with randUrl, in this case 
            //  we'll open a new window that'll point to randUrl
            //   e.g. http://xtra.co.nz
            window.open(randUrl, 'test');
        }

For an explanation of the functions used to set randomInt
see Explain Math.floor(Math.random())