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   103
 
function getNav(){
  var mobileNav = $('body > nav fieldset[role=site-search]').after('<fieldset role="mobile-nav"></fieldset>').next().append('<select></select>');
  mobileNav.children('select').append('<option value="">Navigate&hellip;</option>');
  $($('body > nav ul[role=main-nav] a')).each(function(link) {
    mobileNav.children('select').append('<option value="'+link.href+'">&bull; '+link.text+'</option>')
  });
  mobileNav.children('select').bind('change', function(event){
    if (event.target.value) window.location.href = event.target.value;
  });
}
function addSidebarToggler() {
  $('#articles').before('<a href="#" class="toggle-sidebar">&raquo;</a>').previous().bind('click', function(e){
    e.preventDefault();
    if($('body').hasClass('collapse-sidebar')){
      $('body').removeClass('collapse-sidebar');
      e.target.innerHTML = '&raquo;';
    } else {
      $('body').addClass('collapse-sidebar');
      e.target.innerHTML = '&laquo;';
    }
  });
}
function testFeatures() {
  var features = ['maskImage'];
  $(features).map(function(feature){
    if (Modernizr.testAllProps(feature)) {
      $('html').addClass(feature);
    } else {
      $('html').addClass('no-'+feature);
    }
  });
  if ("placeholder" in document.createElement("input")) {
    $('html').addClass('placeholder');
  } else {
    $('html').addClass('no-placeholder');
  }
}
 
function addCodeLineNumbers(){
  if (navigator.appName == 'Microsoft Internet Explorer') { return }
  $('div.highlight pre code').each(function(el){ addDivLines(el); });
  $('div.highlight, div.gist-highlight').each(function(code){
    var tableStart = '<table cellpadding="0" cellspacing="0"><tbody><tr><td class="gutter">';
    var lineNumbers = '<pre class="line-numbers">';
    var tableMiddle = '</pre></td><td class="code" width="100%">';
    var tableEnd = '</td></tr></tbody></table>';
    var count = $('div.line', code).length;
    for (i=1;i<=count; i++){
      lineNumbers += '<span class="line">'+i+'</span>\n';
    }
    table = tableStart + lineNumbers + tableMiddle + '<pre>'+$('pre', code).html()+'</pre>' + tableEnd;
    $(code).html(table);
  });
}
function addDivLines(el){
  var content = $(el).html();
  var lines = content.replace(/\s*$/g, '').split(/\n/);
  var count = lines.length;
  $(lines).each(function(line, index){
    if(line == '') line = ' ';
    lines[index] = '<div class="line">' + line + '</div>';
  });
  $(el).html(lines.join(''));
}
 
function flashVideoFallback(){
  var flashplayerlocation = "/assets/jwplayer/player.swf",
  flashplayerskin = "/assets/jwplayer/glow/glow.xml";
  $('video').each(function(video){
    video = $(video);
    if(!Modernizr.video.h264 && swfobject.getFlashPlayerVersion() || window.location.hash.indexOf("flash-test") != -1){
      video.children('source[src$=mp4]').first().map(function(source){;
        var src = $(source).attr('src'),
        id = 'video_'+Math.round(1 + Math.random()*(100000)),
        width = video.attr('width'),
        height = parseInt(video.attr('height')) + 30;
        video.after('<div class="flash-video"><div><div id='+id+'>');
        swfobject.embedSWF(flashplayerlocation, id, width, height + 30, "9.0.0",
          { file : src, image : video.attr('poster'), skin : flashplayerskin } ,
          { movie : src, wmode : "opaque", allowfullscreen : "true" });
      });
      video.remove();
    }
  });
}
 
function wrapFlashVideos(){
  $('object').each(function(object){
    object = $(object);
    if(object.children('param[name=movie]')){
      var wrapper = object.before('<div class="flash-video"><div>').previous();
      $(wrapper).children().append(object);
    }
  });
  $('iframe[src*=vimeo],iframe[src*=youtube]').each(function(iframe){
    iframe = $(iframe);
    var wrapper = iframe.before('<div class="flash-video"><div>').previous();
    $(wrapper).children().append(iframe);
  });
}
 
$.domReady(function(){
  testFeatures();