function getNav(){
   var fieldset = $('body > nav fieldset[role=site-search]').after('<fieldset role="mobile-nav"></fieldset>').next();
   var select = $(fieldset).append('<select></select>').children();
   select.append('<option value="">Navigate&hellip;</option>');
   $($('body > nav ul[role=main-nav] a').concat($('body > nav ul[role=subscription] a'))).each(function(link) {
     select.append('<option value="'+link.href+'">&bull; '+link.text+'</option>')
   });
   select.bind('change', function(event){
     if (select.val()) window.location.href = select.val();
   });
 }
 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);
     }
   });
 }
 
 function addDivLines(){
   $('div.highlight pre code').each(function(el){
     var content = bonzo(el).html();
     var lines = content.split('\n');
     var count = lines.length;
     bonzo(lines).each(function(line, index){
       if(line == '') line = ' ';
       lines[index] = '<div class="line">' + line + '</div>';
     });
     $(el).html(lines.join(''));
   });
 }
 function preToTable(){
   $('div.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);
   });
 }
 $.domReady(function(){
   testFeatures();
   addDivLines();
   preToTable();
   getNav();
   addSidebarToggler();
 });
 
 // iOS scaling bug fix
 // Rewritten version
 // By @mathias, @cheeaun and @jdalton
 // Source url: https://gist.github.com/901295
 (function(doc) {
   var addEvent = 'addEventListener',
   type = 'gesturestart',
   qsa = 'querySelectorAll',
   scales = [1, 1],
   meta = qsa in doc ? doc[qsa]('meta[name=viewport]') : [];
   function fix() {
     meta.content = 'width=device-width,minimum-scale=' + scales[0] + ',maximum-scale=' + scales[1];
     doc.removeEventListener(type, fix, true);
   }
   if ((meta = meta[meta.length - 1]) && addEvent in doc) {
     fix();
     scales = [.25, 1.6];
     doc[addEvent](type, fix, true);
   }
 }(document));