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();
  wrapFlashVideos();
  flashVideoFallback();
  addCodeLineNumbers();
  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));

/*!	SWFObject v2.2 modified by Brandon Mathis to contain only what is necessary to dynamically embed flash objects
  * Uncompressed source in javascripts/libs/swfobject-dynamic.js
  * <http://code.google.com/p/swfobject/>
	released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
*/
var swfobject=function(){function s(a,b,d){var q,k=n(d);if(g.wk&&g.wk<312)return q;if(k){if(typeof a.id==l)a.id=d;if(g.ie&&g.win){var e="",c;for(c in a)if(a[c]!=Object.prototype[c])c.toLowerCase()=="data"?b.movie=a[c]:c.toLowerCase()=="styleclass"?e+=' class="'+a[c]+'"':c.toLowerCase()!="classid"&&(e+=" "+c+'="'+a[c]+'"');c="";for(var f in b)b[f]!=Object.prototype[f]&&(c+='<param name="'+f+'" value="'+b[f]+'" />');k.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'+e+">"+c+
"</object>";q=n(a.id)}else{f=i.createElement(o);f.setAttribute("type",m);for(var h in a)a[h]!=Object.prototype[h]&&(h.toLowerCase()=="styleclass"?f.setAttribute("class",a[h]):h.toLowerCase()!="classid"&&f.setAttribute(h,a[h]));for(e in b)b[e]!=Object.prototype[e]&&e.toLowerCase()!="movie"&&(a=f,c=e,h=b[e],d=i.createElement("param"),d.setAttribute("name",c),d.setAttribute("value",h),a.appendChild(d));k.parentNode.replaceChild(f,k);q=f}}return q}function n(a){var b=null;try{b=i.getElementById(a)}catch(d){}return b}
function t(a){var b=g.pv,a=a.split(".");a[0]=parseInt(a[0],10);a[1]=parseInt(a[1],10)||0;a[2]=parseInt(a[2],10)||0;return b[0]>a[0]||b[0]==a[0]&&b[1]>a[1]||b[0]==a[0]&&b[1]==a[1]&&b[2]>=a[2]?!0:!1}function u(a){return/[\\\"<>\.;]/.exec(a)!=null&&typeof encodeURIComponent!=l?encodeURIComponent(a):a}var l="undefined",o="object",m="application/x-shockwave-flash",v=window,i=document,j=navigator,g=function(){var a=typeof i.getElementById!=l&&typeof i.getElementsByTagName!=l&&typeof i.createElement!=l,
b=j.userAgent.toLowerCase(),d=j.platform.toLowerCase(),g=d?/win/.test(d):/win/.test(b),d=d?/mac/.test(d):/mac/.test(b),b=/webkit/.test(b)?parseFloat(b.replace(/^.*webkit\/(\d+(\.\d+)?).*$/,"$1")):!1,k=!+"\u000b1",e=[0,0,0],c=null;if(typeof j.plugins!=l&&typeof j.plugins["Shockwave Flash"]==o){if((c=j.plugins["Shockwave Flash"].description)&&!(typeof j.mimeTypes!=l&&j.mimeTypes[m]&&!j.mimeTypes[m].enabledPlugin))k=!1,c=c.replace(/^.*\s+(\S+\s+\S+$)/,"$1"),e[0]=parseInt(c.replace(/^(.*)\..*$/,"$1"),
10),e[1]=parseInt(c.replace(/^.*\.(.*)\s.*$/,"$1"),10),e[2]=/[a-zA-Z]/.test(c)?parseInt(c.replace(/^.*[a-zA-Z]+(.*)$/,"$1"),10):0}else if(typeof v.ActiveXObject!=l)try{var f=new ActiveXObject("ShockwaveFlash.ShockwaveFlash");if(f&&(c=f.GetVariable("$version")))k=!0,c=c.split(" ")[1].split(","),e=[parseInt(c[0],10),parseInt(c[1],10),parseInt(c[2],10)]}catch(h){}return{w3:a,pv:e,wk:b,ie:k,win:g,mac:d}}();return{embedSWF:function(a,b,d,i,k,e,c,f,h){var j={success:!1,id:b};if(g.w3&&!(g.wk&&g.wk<312)&&
a&&b&&d&&i&&k){d+="";i+="";var p={};if(f&&typeof f===o)for(var m in f)p[m]=f[m];p.data=a;p.width=d;p.height=i;a={};if(c&&typeof c===o)for(var n in c)a[n]=c[n];if(e&&typeof e===o)for(var r in e)typeof a.flashvars!=l?a.flashvars+="&"+r+"="+e[r]:a.flashvars=r+"="+e[r];if(t(k))b=s(p,a,b),j.success=!0,j.ref=b}h&&h(j)},ua:g,getFlashPlayerVersion:function(){return{major:g.pv[0],minor:g.pv[1],release:g.pv[2]}},hasFlashPlayerVersion:t,createSWF:function(a,b,d){if(g.w3)return s(a,b,d)},getQueryParamValue:function(a){var b=
i.location.search||i.location.hash;if(b){/\?/.test(b)&&(b=b.split("?")[1]);if(a==null)return u(b);for(var b=b.split("&"),d=0;d<b.length;d++)if(b[d].substring(0,b[d].indexOf("="))==a)return u(b[d].substring(b[d].indexOf("=")+1))}return""}}}();