(function($) {

  $.fn.tabs = function() {
    var $container = this;
    $('.tab', $container).hide();
    $('.tab:first', $container).show();
    $('.tab-bar li:first', $container).addClass('active');
    $('.tab-bar li a', $container).click(function() {
      $('.tab-bar li', $container).removeClass('active');
      $(this).parent().addClass('active');
      var $currentTab = $($(this).attr('href'));
      $('.tab', $container).hide();
      $currentTab.show();
      return false;
    });
    return $container;
  };

})(jQuery);

var htmlEncode = function (source, display, tabs) {
    var i, s, ch, peek, line, result,
		next, endline, push,
		spaces;

    // Stash the next character and advance the pointer
    next = function () {
        peek = source.charAt(i);
        i += 1;
    };

    // Start a new "line" of output, to be joined later by <br />
    endline = function () {
        line = line.join('');
        if (display) {
            // If a line starts or ends with a space, it evaporates in html
            // unless it's an nbsp.
            line = line.replace(/(^ )|( $)/g, '&nbsp;');
        }
        result.push(line);
        line = [];
    };

    // Push a character or its entity onto the current line
    push = function () {
        if (ch < ' ' || ch > '~') {
            line.push('&#' + ch.charCodeAt(0) + ';');
        } else {
            line.push(ch);
        }
    };

    // Use only integer part of tabs, and default to 4
    tabs = (tabs >= 0) ? Math.floor(tabs) : 4;

    result = [];
    line = [];

    i = 0;
    next();
    while (i <= source.length) { // less than or equal, because i is always one ahead
        ch = peek;
        next();

        // HTML special chars.
        switch (ch) {
            case '<':
                line.push('&lt;');
                break;
            case '>':
                line.push('&gt;');
                break;
            case '&':
                line.push('&amp;');
                break;
            case '"':
                line.push('&quot;');
                break;
            case "'":
                line.push('&#39;');
                break;
            default:
                // If the output is intended for display,
                // then end lines on newlines, and replace tabs with spaces.
                if (display) {
                    switch (ch) {
                        case '\r':
                            // If this \r is the beginning of a \r\n, skip over the \n part.
                            if (peek === '\n') {
                                next();
                            }
                            endline();
                            break;
                        case '\n':
                            endline();
                            break;
                        case '\t':
                            // expand tabs
                            spaces = tabs - (line.length % tabs);
                            for (s = 0; s < spaces; s += 1) {
                                line.push(' ');
                            }
                            break;
                        default:
                            // All other characters can be dealt with generically.
                            push();
                    }
                } else {
                    // If the output is not for display,
                    // then none of the characters need special treatment.
                    push();
                }
        }
    }
    endline();

    // If you can't beat 'em, join 'em.
    result = result.join('<br />');

    if (display) {
        // Break up contiguous blocks of spaces with non-breaking spaces
        result = result.replace(/ {2}/g, ' &nbsp;');
    }

    // tada!
    return result;
};