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      <a href="/scottjehl/Respond"><a href="/scottjehl/Respond/commit/e27112aaab397831666d910f5448988c9390a61b" class="message">removed untrue comment about IE9. Fixes </a><a href="https://github.com/scottjehl/Respond/issues/57" title="ie9+ don't support matchMedia" class="issue-link">#57</a></a>
      
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      <span class="author-name"><a href="/scottjehl">scottjehl</a></span>
      authored <time class="js-relative-date" datetime="2011-08-16T09:36:05-07:00" title="2011-08-16 09:36:05">August 16, 2011</time>

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                <div class="highlight"><pre><div class='line' id='LC1'><span class="cm">/*! Respond.js v1.0.1pre: min/max-width media query polyfill. (c) Scott Jehl. MIT/GPLv2 Lic. j.mp/respondjs  */</span></div><div class='line' id='LC2'><span class="p">(</span><span class="kd">function</span><span class="p">(</span><span class="nx">e</span><span class="p">,</span><span class="nx">h</span><span class="p">){</span><span class="nx">e</span><span class="p">.</span><span class="nx">respond</span><span class="o">=</span><span class="p">{};</span><span class="nx">respond</span><span class="p">.</span><span class="nx">update</span><span class="o">=</span><span class="kd">function</span><span class="p">(){};</span><span class="nx">respond</span><span class="p">.</span><span class="nx">mediaQueriesSupported</span><span class="o">=</span><span class="nx">h</span><span class="p">;</span><span class="k">if</span><span class="p">(</span><span class="nx">h</span><span class="p">){</span><span class="k">return</span><span class="p">}</span><span class="kd">var</span> <span class="nx">u</span><span class="o">=</span><span class="nx">e</span><span class="p">.</span><span class="nb">document</span><span class="p">,</span><span class="nx">r</span><span class="o">=</span><span class="nx">u</span><span class="p">.</span><span class="nx">documentElement</span><span class="p">,</span><span class="nx">i</span><span class="o">=</span><span class="p">[],</span><span class="nx">k</span><span class="o">=</span><span class="p">[],</span><span class="nx">p</span><span class="o">=</span><span class="p">[],</span><span class="nx">o</span><span class="o">=</span><span class="p">{},</span><span class="nx">g</span><span class="o">=</span><span class="mi">30</span><span class="p">,</span><span class="nx">f</span><span class="o">=</span><span class="nx">u</span><span class="p">.</span><span class="nx">getElementsByTagName</span><span class="p">(</span><span class="s2">&quot;head&quot;</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span><span class="o">||</span><span class="nx">r</span><span class="p">,</span><span class="nx">b</span><span class="o">=</span><span class="nx">f</span><span class="p">.</span><span class="nx">getElementsByTagName</span><span class="p">(</span><span class="s2">&quot;link&quot;</span><span class="p">),</span><span class="nx">d</span><span class="o">=</span><span class="p">[],</span><span class="nx">a</span><span class="o">=</span><span class="kd">function</span><span class="p">(){</span><span class="kd">var</span> <span class="nx">B</span><span class="o">=</span><span class="nx">b</span><span class="p">,</span><span class="nx">w</span><span class="o">=</span><span class="nx">B</span><span class="p">.</span><span class="nx">length</span><span class="p">,</span><span class="nx">z</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span><span class="nx">y</span><span class="p">,</span><span class="nx">x</span><span class="p">,</span><span class="nx">A</span><span class="p">,</span><span class="nx">v</span><span class="p">;</span><span class="k">for</span><span class="p">(;</span><span class="nx">z</span><span class="o">&lt;</span><span class="nx">w</span><span class="p">;</span><span class="nx">z</span><span class="o">++</span><span class="p">){</span><span class="nx">y</span><span class="o">=</span><span class="nx">B</span><span class="p">[</span><span class="nx">z</span><span class="p">],</span><span class="nx">x</span><span class="o">=</span><span class="nx">y</span><span class="p">.</span><span class="nx">href</span><span class="p">,</span><span class="nx">A</span><span class="o">=</span><span class="nx">y</span><span class="p">.</span><span class="nx">media</span><span class="p">,</span><span class="nx">v</span><span class="o">=</span><span class="nx">y</span><span class="p">.</span><span class="nx">rel</span><span class="o">&amp;&amp;</span><span class="nx">y</span><span class="p">.</span><span class="nx">rel</span><span class="p">.</span><span class="nx">toLowerCase</span><span class="p">()</span><span class="o">===</span><span class="s2">&quot;stylesheet&quot;</span><span class="p">;</span><span class="k">if</span><span class="p">(</span><span class="o">!!</span><span class="nx">x</span><span class="o">&amp;&amp;</span><span class="nx">v</span><span class="o">&amp;&amp;!</span><span class="nx">o</span><span class="p">[</span><span class="nx">x</span><span class="p">]){</span><span class="k">if</span><span class="p">(</span><span class="nx">y</span><span class="p">.</span><span class="nx">styleSheet</span><span class="o">&amp;&amp;</span><span class="nx">y</span><span class="p">.</span><span class="nx">styleSheet</span><span class="p">.</span><span class="nx">rawCssText</span><span class="p">){</span><span class="nx">m</span><span class="p">(</span><span class="nx">y</span><span class="p">.</span><span class="nx">styleSheet</span><span class="p">.</span><span class="nx">rawCssText</span><span class="p">,</span><span class="nx">x</span><span class="p">,</span><span class="nx">A</span><span class="p">);</span><span class="nx">o</span><span class="p">[</span><span class="nx">x</span><span class="p">]</span><span class="o">=</span><span class="kc">true</span><span class="p">}</span><span class="k">else</span><span class="p">{</span><span class="k">if</span><span class="p">(</span><span class="o">!</span><span class="sr">/^([a-zA-Z]+?:(\/\/)?)/</span><span class="p">.</span><span class="nx">test</span><span class="p">(</span><span class="nx">x</span><span class="p">)</span><span class="o">||</span><span class="nx">x</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nb">RegExp</span><span class="p">.</span><span class="nx">$1</span><span class="p">,</span><span class="s2">&quot;&quot;</span><span class="p">).</span><span class="nx">split</span><span class="p">(</span><span class="s2">&quot;/&quot;</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span><span class="o">===</span><span class="nx">e</span><span class="p">.</span><span class="nx">location</span><span class="p">.</span><span class="nx">host</span><span class="p">){</span><span class="nx">d</span><span class="p">.</span><span class="nx">push</span><span class="p">({</span><span class="nx">href</span><span class="o">:</span><span class="nx">x</span><span class="p">,</span><span class="nx">media</span><span class="o">:</span><span class="nx">A</span><span class="p">})}}}}</span><span class="nx">t</span><span class="p">()},</span><span class="nx">t</span><span class="o">=</span><span class="kd">function</span><span class="p">(){</span><span class="k">if</span><span class="p">(</span><span class="nx">d</span><span class="p">.</span><span class="nx">length</span><span class="p">){</span><span class="kd">var</span> <span class="nx">v</span><span class="o">=</span><span class="nx">d</span><span class="p">.</span><span class="nx">shift</span><span class="p">();</span><span class="nx">n</span><span class="p">(</span><span class="nx">v</span><span class="p">.</span><span class="nx">href</span><span class="p">,</span><span class="kd">function</span><span class="p">(</span><span class="nx">w</span><span class="p">){</span><span class="nx">m</span><span class="p">(</span><span class="nx">w</span><span class="p">,</span><span class="nx">v</span><span class="p">.</span><span class="nx">href</span><span class="p">,</span><span class="nx">v</span><span class="p">.</span><span class="nx">media</span><span class="p">);</span><span class="nx">o</span><span class="p">[</span><span class="nx">v</span><span class="p">.</span><span class="nx">href</span><span class="p">]</span><span class="o">=</span><span class="kc">true</span><span class="p">;</span><span class="nx">t</span><span class="p">()})}},</span><span class="nx">m</span><span class="o">=</span><span class="kd">function</span><span class="p">(</span><span class="nx">G</span><span class="p">,</span><span class="nx">v</span><span class="p">,</span><span class="nx">x</span><span class="p">){</span><span class="kd">var</span> <span class="nx">E</span><span class="o">=</span><span class="nx">G</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="sr">/@media[^\{]+\{([^\{\}]+\{[^\}\{]+\})+/gi</span><span class="p">),</span><span class="nx">H</span><span class="o">=</span><span class="nx">E</span><span class="o">&amp;&amp;</span><span class="nx">E</span><span class="p">.</span><span class="nx">length</span><span class="o">||</span><span class="mi">0</span><span class="p">,</span><span class="nx">v</span><span class="o">=</span><span class="nx">v</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span><span class="nx">v</span><span class="p">.</span><span class="nx">lastIndexOf</span><span class="p">(</span><span class="s2">&quot;/&quot;</span><span class="p">)),</span><span class="nx">w</span><span class="o">=</span><span class="kd">function</span><span class="p">(</span><span class="nx">I</span><span class="p">){</span><span class="k">return</span> <span class="nx">I</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/(url\()[&#39;&quot;]?([^\/\)&#39;&quot;][^:\)&#39;&quot;]+)[&#39;&quot;]?(\))/g</span><span class="p">,</span><span class="s2">&quot;$1&quot;</span><span class="o">+</span><span class="nx">v</span><span class="o">+</span><span class="s2">&quot;$2$3&quot;</span><span class="p">)},</span><span class="nx">y</span><span class="o">=!</span><span class="nx">H</span><span class="o">&amp;&amp;</span><span class="nx">x</span><span class="p">,</span><span class="nx">B</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span><span class="nx">A</span><span class="p">,</span><span class="nx">C</span><span class="p">,</span><span class="nx">D</span><span class="p">,</span><span class="nx">z</span><span class="p">,</span><span class="nx">F</span><span class="p">;</span><span class="k">if</span><span class="p">(</span><span class="nx">v</span><span class="p">.</span><span class="nx">length</span><span class="p">){</span><span class="nx">v</span><span class="o">+=</span><span class="s2">&quot;/&quot;</span><span class="p">}</span><span class="k">if</span><span class="p">(</span><span class="nx">y</span><span class="p">){</span><span class="nx">H</span><span class="o">=</span><span class="mi">1</span><span class="p">}</span><span class="k">for</span><span class="p">(;</span><span class="nx">B</span><span class="o">&lt;</span><span class="nx">H</span><span class="p">;</span><span class="nx">B</span><span class="o">++</span><span class="p">){</span><span class="nx">A</span><span class="o">=</span><span class="mi">0</span><span class="p">;</span><span class="k">if</span><span class="p">(</span><span class="nx">y</span><span class="p">){</span><span class="nx">C</span><span class="o">=</span><span class="nx">x</span><span class="p">;</span><span class="nx">k</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">w</span><span class="p">(</span><span class="nx">G</span><span class="p">))}</span><span class="k">else</span><span class="p">{</span><span class="nx">C</span><span class="o">=</span><span class="nx">E</span><span class="p">[</span><span class="nx">B</span><span class="p">].</span><span class="nx">match</span><span class="p">(</span><span class="sr">/@media ([^\{]+)\{([\S\s]+?)$/</span><span class="p">)</span><span class="o">&amp;&amp;</span><span class="nb">RegExp</span><span class="p">.</span><span class="nx">$1</span><span class="p">;</span><span class="nx">k</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nb">RegExp</span><span class="p">.</span><span class="nx">$2</span><span class="o">&amp;&amp;</span><span class="nx">w</span><span class="p">(</span><span class="nb">RegExp</span><span class="p">.</span><span class="nx">$2</span><span class="p">))}</span><span class="nx">z</span><span class="o">=</span><span class="nx">C</span><span class="p">.</span><span class="nx">split</span><span class="p">(</span><span class="s2">&quot;,&quot;</span><span class="p">);</span><span class="nx">F</span><span class="o">=</span><span class="nx">z</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span><span class="k">for</span><span class="p">(;</span><span class="nx">A</span><span class="o">&lt;</span><span class="nx">F</span><span class="p">;</span><span class="nx">A</span><span class="o">++</span><span class="p">){</span><span class="nx">D</span><span class="o">=</span><span class="nx">z</span><span class="p">[</span><span class="nx">A</span><span class="p">];</span><span class="nx">i</span><span class="p">.</span><span class="nx">push</span><span class="p">({</span><span class="nx">media</span><span class="o">:</span><span class="nx">D</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="sr">/(only\s+)?([a-zA-Z]+)(\sand)?/</span><span class="p">)</span><span class="o">&amp;&amp;</span><span class="nb">RegExp</span><span class="p">.</span><span class="nx">$2</span><span class="p">,</span><span class="nx">rules</span><span class="o">:</span><span class="nx">k</span><span class="p">.</span><span class="nx">length</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span><span class="nx">minw</span><span class="o">:</span><span class="nx">D</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="sr">/\(min\-width:[\s]*([\s]*[0-9]+)px[\s]*\)/</span><span class="p">)</span><span class="o">&amp;&amp;</span><span class="nb">parseFloat</span><span class="p">(</span><span class="nb">RegExp</span><span class="p">.</span><span class="nx">$1</span><span class="p">),</span><span class="nx">maxw</span><span class="o">:</span><span class="nx">D</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="sr">/\(max\-width:[\s]*([\s]*[0-9]+)px[\s]*\)/</span><span class="p">)</span><span class="o">&amp;&amp;</span><span class="nb">parseFloat</span><span class="p">(</span><span class="nb">RegExp</span><span class="p">.</span><span class="nx">$1</span><span class="p">)})}}</span><span class="nx">j</span><span class="p">()},</span><span class="nx">l</span><span class="p">,</span><span class="nx">q</span><span class="p">,</span><span class="nx">j</span><span class="o">=</span><span class="kd">function</span><span class="p">(</span><span class="nx">E</span><span class="p">){</span><span class="kd">var</span> <span class="nx">v</span><span class="o">=</span><span class="s2">&quot;clientWidth&quot;</span><span class="p">,</span><span class="nx">x</span><span class="o">=</span><span class="nx">r</span><span class="p">[</span><span class="nx">v</span><span class="p">],</span><span class="nx">D</span><span class="o">=</span><span class="nx">u</span><span class="p">.</span><span class="nx">compatMode</span><span class="o">===</span><span class="s2">&quot;CSS1Compat&quot;</span><span class="o">&amp;&amp;</span><span class="nx">x</span><span class="o">||</span><span class="nx">u</span><span class="p">.</span><span class="nx">body</span><span class="p">[</span><span class="nx">v</span><span class="p">]</span><span class="o">||</span><span class="nx">x</span><span class="p">,</span><span class="nx">z</span><span class="o">=</span><span class="p">{},</span><span class="nx">C</span><span class="o">=</span><span class="nx">u</span><span class="p">.</span><span class="nx">createDocumentFragment</span><span class="p">(),</span><span class="nx">B</span><span class="o">=</span><span class="nx">b</span><span class="p">[</span><span class="nx">b</span><span class="p">.</span><span class="nx">length</span><span class="o">-</span><span class="mi">1</span><span class="p">],</span><span class="nx">w</span><span class="o">=</span><span class="p">(</span><span class="k">new</span> <span class="nb">Date</span><span class="p">()).</span><span class="nx">getTime</span><span class="p">();</span><span class="k">if</span><span class="p">(</span><span class="nx">E</span><span class="o">&amp;&amp;</span><span class="nx">l</span><span class="o">&amp;&amp;</span><span class="nx">w</span><span class="o">-</span><span class="nx">l</span><span class="o">&lt;</span><span class="nx">g</span><span class="p">){</span><span class="nx">clearTimeout</span><span class="p">(</span><span class="nx">q</span><span class="p">);</span><span class="nx">q</span><span class="o">=</span><span class="nx">setTimeout</span><span class="p">(</span><span class="nx">j</span><span class="p">,</span><span class="nx">g</span><span class="p">);</span><span class="k">return</span><span class="p">}</span><span class="k">else</span><span class="p">{</span><span class="nx">l</span><span class="o">=</span><span class="nx">w</span><span class="p">}</span><span class="k">for</span><span class="p">(</span><span class="kd">var</span> <span class="nx">y</span> <span class="k">in</span> <span class="nx">i</span><span class="p">){</span><span class="kd">var</span> <span class="nx">F</span><span class="o">=</span><span class="nx">i</span><span class="p">[</span><span class="nx">y</span><span class="p">];</span><span class="k">if</span><span class="p">(</span><span class="o">!</span><span class="nx">F</span><span class="p">.</span><span class="nx">minw</span><span class="o">&amp;&amp;!</span><span class="nx">F</span><span class="p">.</span><span class="nx">maxw</span><span class="o">||</span><span class="p">(</span><span class="o">!</span><span class="nx">F</span><span class="p">.</span><span class="nx">minw</span><span class="o">||</span><span class="nx">F</span><span class="p">.</span><span class="nx">minw</span><span class="o">&amp;&amp;</span><span class="nx">D</span><span class="o">&gt;=</span><span class="nx">F</span><span class="p">.</span><span class="nx">minw</span><span class="p">)</span><span class="o">&amp;&amp;</span><span class="p">(</span><span class="o">!</span><span class="nx">F</span><span class="p">.</span><span class="nx">maxw</span><span class="o">||</span><span class="nx">F</span><span class="p">.</span><span class="nx">maxw</span><span class="o">&amp;&amp;</span><span class="nx">D</span><span class="o">&lt;=</span><span class="nx">F</span><span class="p">.</span><span class="nx">maxw</span><span class="p">)){</span><span class="k">if</span><span class="p">(</span><span class="o">!</span><span class="nx">z</span><span class="p">[</span><span class="nx">F</span><span class="p">.</span><span class="nx">media</span><span class="p">]){</span><span class="nx">z</span><span class="p">[</span><span class="nx">F</span><span class="p">.</span><span class="nx">media</span><span class="p">]</span><span class="o">=</span><span class="p">[]}</span><span class="nx">z</span><span class="p">[</span><span class="nx">F</span><span class="p">.</span><span class="nx">media</span><span class="p">].</span><span class="nx">push</span><span class="p">(</span><span class="nx">k</span><span class="p">[</span><span class="nx">F</span><span class="p">.</span><span class="nx">rules</span><span class="p">])}}</span><span class="k">for</span><span class="p">(</span><span class="kd">var</span> <span class="nx">y</span> <span class="k">in</span> <span class="nx">p</span><span class="p">){</span><span class="k">if</span><span class="p">(</span><span class="nx">p</span><span class="p">[</span><span class="nx">y</span><span class="p">]</span><span class="o">&amp;&amp;</span><span class="nx">p</span><span class="p">[</span><span class="nx">y</span><span class="p">].</span><span class="nx">parentNode</span><span class="o">===</span><span class="nx">f</span><span class="p">){</span><span class="nx">f</span><span class="p">.</span><span class="nx">removeChild</span><span class="p">(</span><span class="nx">p</span><span class="p">[</span><span class="nx">y</span><span class="p">])}}</span><span class="k">for</span><span class="p">(</span><span class="kd">var</span> <span class="nx">y</span> <span class="k">in</span> <span class="nx">z</span><span class="p">){</span><span class="kd">var</span> <span class="nx">G</span><span class="o">=</span><span class="nx">u</span><span class="p">.</span><span class="nx">createElement</span><span class="p">(</span><span class="s2">&quot;style&quot;</span><span class="p">),</span><span class="nx">A</span><span class="o">=</span><span class="nx">z</span><span class="p">[</span><span class="nx">y</span><span class="p">].</span><span class="nx">join</span><span class="p">(</span><span class="s2">&quot;\n&quot;</span><span class="p">);</span><span class="nx">G</span><span class="p">.</span><span class="nx">type</span><span class="o">=</span><span class="s2">&quot;text/css&quot;</span><span class="p">;</span><span class="nx">G</span><span class="p">.</span><span class="nx">media</span><span class="o">=</span><span class="nx">y</span><span class="p">;</span><span class="k">if</span><span class="p">(</span><span class="nx">G</span><span class="p">.</span><span class="nx">styleSheet</span><span class="p">){</span><span class="nx">G</span><span class="p">.</span><span class="nx">styleSheet</span><span class="p">.</span><span class="nx">cssText</span><span class="o">=</span><span class="nx">A</span><span class="p">}</span><span class="k">else</span><span class="p">{</span><span class="nx">G</span><span class="p">.</span><span class="nx">appendChild</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">createTextNode</span><span class="p">(</span><span class="nx">A</span><span class="p">))}</span><span class="nx">C</span><span class="p">.</span><span class="nx">appendChild</span><span class="p">(</span><span class="nx">G</span><span class="p">);</span><span class="nx">p</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">G</span><span class="p">)}</span><span class="nx">f</span><span class="p">.</span><span class="nx">insertBefore</span><span class="p">(</span><span class="nx">C</span><span class="p">,</span><span class="nx">B</span><span class="p">.</span><span class="nx">nextSibling</span><span class="p">)},</span><span class="nx">n</span><span class="o">=</span><span class="kd">function</span><span class="p">(</span><span class="nx">v</span><span class="p">,</span><span class="nx">x</span><span class="p">){</span><span class="kd">var</span> <span class="nx">w</span><span class="o">=</span><span class="nx">c</span><span class="p">();</span><span class="k">if</span><span class="p">(</span><span class="o">!</span><span class="nx">w</span><span class="p">){</span><span class="k">return</span><span class="p">}</span><span class="nx">w</span><span class="p">.</span><span class="nx">open</span><span class="p">(</span><span class="s2">&quot;GET&quot;</span><span class="p">,</span><span class="nx">v</span><span class="p">,</span><span class="kc">true</span><span class="p">);</span><span class="nx">w</span><span class="p">.</span><span class="nx">onreadystatechange</span><span class="o">=</span><span class="kd">function</span><span class="p">(){</span><span class="k">if</span><span class="p">(</span><span class="nx">w</span><span class="p">.</span><span class="nx">readyState</span><span class="o">!=</span><span class="mi">4</span><span class="o">||</span><span class="nx">w</span><span class="p">.</span><span class="nx">status</span><span class="o">!=</span><span class="mi">200</span><span class="o">&amp;&amp;</span><span class="nx">w</span><span class="p">.</span><span class="nx">status</span><span class="o">!=</span><span class="mi">304</span><span class="p">){</span><span class="k">return</span><span class="p">}</span><span class="nx">x</span><span class="p">(</span><span class="nx">w</span><span class="p">.</span><span class="nx">responseText</span><span class="p">)};</span><span class="k">if</span><span class="p">(</span><span class="nx">w</span><span class="p">.</span><span class="nx">readyState</span><span class="o">==</span><span class="mi">4</span><span class="p">){</span><span class="k">return</span><span class="p">}</span><span class="nx">w</span><span class="p">.</span><span class="nx">send</span><span class="p">(</span><span class="kc">null</span><span class="p">)},</span><span class="nx">c</span><span class="o">=</span><span class="p">(</span><span class="kd">function</span><span class="p">(){</span><span class="kd">var</span> <span class="nx">v</span><span class="o">=</span><span class="kc">false</span><span class="p">;</span><span class="k">try</span><span class="p">{</span><span class="nx">v</span><span class="o">=</span><span class="k">new</span> <span class="nx">XMLHttpRequest</span><span class="p">()}</span><span class="k">catch</span><span class="p">(</span><span class="nx">w</span><span class="p">){</span><span class="nx">v</span><span class="o">=</span><span class="k">new</span> <span class="nx">ActiveXObject</span><span class="p">(</span><span class="s2">&quot;Microsoft.XMLHTTP&quot;</span><span class="p">)}</span><span class="k">return</span> <span class="kd">function</span><span class="p">(){</span><span class="k">return</span> <span class="nx">v</span><span class="p">}})();</span><span class="nx">a</span><span class="p">();</span><span class="nx">respond</span><span class="p">.</span><span class="nx">update</span><span class="o">=</span><span class="nx">a</span><span class="p">;</span><span class="kd">function</span> <span class="nx">s</span><span class="p">(){</span><span class="nx">j</span><span class="p">(</span><span class="kc">true</span><span class="p">)}</span><span class="k">if</span><span class="p">(</span><span class="nx">e</span><span class="p">.</span><span class="nx">addEventListener</span><span class="p">){</span><span class="nx">e</span><span class="p">.</span><span class="nx">addEventListener</span><span class="p">(</span><span class="s2">&quot;resize&quot;</span><span class="p">,</span><span class="nx">s</span><span class="p">,</span><span class="kc">false</span><span class="p">)}</span><span class="k">else</span><span class="p">{</span><span class="k">if</span><span class="p">(</span><span class="nx">e</span><span class="p">.</span><span class="nx">attachEvent</span><span class="p">){</span><span class="nx">e</span><span class="p">.</span><span class="nx">attachEvent</span><span class="p">(</span><span class="s2">&quot;onresize&quot;</span><span class="p">,</span><span class="nx">s</span><span class="p">)}}})(</span><span class="k">this</span><span class="p">,(</span><span class="kd">function</span><span class="p">(</span><span class="nx">f</span><span class="p">){</span><span class="k">if</span><span class="p">(</span><span class="nx">f</span><span class="p">.</span><span class="nx">matchMedia</span><span class="p">){</span><span class="k">return</span> <span class="kc">true</span><span class="p">}</span><span class="kd">var</span> <span class="nx">e</span><span class="p">,</span><span class="nx">i</span><span class="o">=</span><span class="nb">document</span><span class="p">,</span><span class="nx">c</span><span class="o">=</span><span class="nx">i</span><span class="p">.</span><span class="nx">documentElement</span><span class="p">,</span><span class="nx">g</span><span class="o">=</span><span class="nx">c</span><span class="p">.</span><span class="nx">firstElementChild</span><span class="o">||</span><span class="nx">c</span><span class="p">.</span><span class="nx">firstChild</span><span class="p">,</span><span class="nx">h</span><span class="o">=!</span><span class="nx">i</span><span class="p">.</span><span class="nx">body</span><span class="p">,</span><span class="nx">d</span><span class="o">=</span><span class="nx">i</span><span class="p">.</span><span class="nx">body</span><span class="o">||</span><span class="nx">i</span><span class="p">.</span><span class="nx">createElement</span><span class="p">(</span><span class="s2">&quot;body&quot;</span><span class="p">),</span><span class="nx">b</span><span class="o">=</span><span class="nx">i</span><span class="p">.</span><span class="nx">createElement</span><span class="p">(</span><span class="s2">&quot;div&quot;</span><span class="p">),</span><span class="nx">a</span><span class="o">=</span><span class="s2">&quot;only all&quot;</span><span class="p">;</span><span class="nx">b</span><span class="p">.</span><span class="nx">id</span><span class="o">=</span><span class="s2">&quot;mq-test-1&quot;</span><span class="p">;</span><span class="nx">b</span><span class="p">.</span><span class="nx">style</span><span class="p">.</span><span class="nx">cssText</span><span class="o">=</span><span class="s2">&quot;position:absolute;top:-99em&quot;</span><span class="p">;</span><span class="nx">d</span><span class="p">.</span><span class="nx">appendChild</span><span class="p">(</span><span class="nx">b</span><span class="p">);</span><span class="nx">b</span><span class="p">.</span><span class="nx">innerHTML</span><span class="o">=</span><span class="s1">&#39;_&lt;style media=&quot;&#39;</span><span class="o">+</span><span class="nx">a</span><span class="o">+</span><span class="s1">&#39;&quot;&gt; #mq-test-1 { width: 9px; }&lt;/style&gt;&#39;</span><span class="p">;</span><span class="k">if</span><span class="p">(</span><span class="nx">h</span><span class="p">){</span><span class="nx">c</span><span class="p">.</span><span class="nx">insertBefore</span><span class="p">(</span><span class="nx">d</span><span class="p">,</span><span class="nx">g</span><span class="p">)}</span><span class="nx">b</span><span class="p">.</span><span class="nx">removeChild</span><span class="p">(</span><span class="nx">b</span><span class="p">.</span><span class="nx">firstChild</span><span class="p">);</span><span class="nx">e</span><span class="o">=</span><span class="nx">b</span><span class="p">.</span><span class="nx">offsetWidth</span><span class="o">==</span><span class="mi">9</span><span class="p">;</span><span class="k">if</span><span class="p">(</span><span class="nx">h</span><span class="p">){</span><span class="nx">c</span><span class="p">.</span><span class="nx">removeChild</span><span class="p">(</span><span class="nx">d</span><span class="p">)}</span><span class="k">else</span><span class="p">{</span><span class="nx">d</span><span class="p">.</span><span class="nx">removeChild</span><span class="p">(</span><span class="nx">b</span><span class="p">)}</span><span class="k">return</span> <span class="nx">e</span><span class="p">})(</span><span class="k">this</span><span class="p">));</span></div></pre></div>
              
            
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<div id="keyboard_shortcuts_pane" class="instapaper_ignore readability-extra" style="display:none">
  <h2>Keyboard Shortcuts <small><a href="#" class="js-see-all-keyboard-shortcuts">(see all)</a></small></h2>

  <div class="columns threecols">
    <div class="column first">
      <h3>Site wide shortcuts</h3>
      <dl class="keyboard-mappings">
        <dt>s</dt>
        <dd>Focus site search</dd>
      </dl>
      <dl class="keyboard-mappings">
        <dt>?</dt>
        <dd>Bring up this help dialog</dd>
      </dl>
    </div><!-- /.column.first -->

    <div class="column middle" style='display:none'>
      <h3>Commit list</h3>
      <dl class="keyboard-mappings">
        <dt>j</dt>
        <dd>Move selected down</dd>
      </dl>
      <dl class="keyboard-mappings">
        <dt>k</dt>
        <dd>Move selected up</dd>
      </dl>
      <dl class="keyboard-mappings">
        <dt>c <em>or</em> o <em>or</em> enter</dt>
        <dd>Open commit</dd>
      </dl>
      <dl class="keyboard-mappings">
        <dt>y</dt>
        <dd>Expand URL to its canonical form</dd>
      </dl>
    </div><!-- /.column.first -->

    <div class="column last" style='display:none'>
      <h3>Pull request list</h3>
      <dl class="keyboard-mappings">
        <dt>j</dt>
        <dd>Move selected down</dd>
      </dl>
      <dl class="keyboard-mappings">
        <dt>k</dt>
        <dd>Move selected up</dd>
      </dl>
      <dl class="keyboard-mappings">
        <dt>o <em>or</em> enter</dt>
        <dd>Open issue</dd>
      </dl>
    </div><!-- /.columns.last -->

  </div><!-- /.columns.equacols -->

  <div style='display:none'>
    <div class="rule"></div>

    <h3>Issues</h3>

    <div class="columns threecols">
      <div class="column first">
        <dl class="keyboard-mappings">
          <dt>j</dt>
          <dd>Move selected down</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>k</dt>
          <dd>Move selected up</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>x</dt>
          <dd>Toggle select target</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>o <em>or</em> enter</dt>
          <dd>Open issue</dd>
        </dl>
      </div><!-- /.column.first -->
      <div class="column middle">
        <dl class="keyboard-mappings">
          <dt>I</dt>
          <dd>Mark selected as read</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>U</dt>
          <dd>Mark selected as unread</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>e</dt>
          <dd>Close selected</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>y</dt>
          <dd>Remove selected from view</dd>
        </dl>
      </div><!-- /.column.middle -->
      <div class="column last">
        <dl class="keyboard-mappings">
          <dt>c</dt>
          <dd>Create issue</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>l</dt>
          <dd>Create label</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>i</dt>
          <dd>Back to inbox</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>u</dt>
          <dd>Back to issues</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>/</dt>
          <dd>Focus issues search</dd>
        </dl>
      </div>
    </div>
  </div>

  <div style='display:none'>
    <div class="rule"></div>

    <h3>Issues Dashboard</h3>

    <div class="columns threecols">
      <div class="column first">
        <dl class="keyboard-mappings">
          <dt>j</dt>
          <dd>Move selected down</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>k</dt>
          <dd>Move selected up</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>o <em>or</em> enter</dt>
          <dd>Open issue</dd>
        </dl>
      </div><!-- /.column.first -->
    </div>
  </div>

  <div style='display:none'>
    <div class="rule"></div>

    <h3>Network Graph</h3>
    <div class="columns equacols">
      <div class="column first">
        <dl class="keyboard-mappings">
          <dt><span class="badmono">←</span> <em>or</em> h</dt>
          <dd>Scroll left</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt><span class="badmono">→</span> <em>or</em> l</dt>
          <dd>Scroll right</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt><span class="badmono">↑</span> <em>or</em> k</dt>
          <dd>Scroll up</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt><span class="badmono">↓</span> <em>or</em> j</dt>
          <dd>Scroll down</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>t</dt>
          <dd>Toggle visibility of head labels</dd>
        </dl>
      </div><!-- /.column.first -->
      <div class="column last">
        <dl class="keyboard-mappings">
          <dt>shift <span class="badmono">←</span> <em>or</em> shift h</dt>
          <dd>Scroll all the way left</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>shift <span class="badmono">→</span> <em>or</em> shift l</dt>
          <dd>Scroll all the way right</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>shift <span class="badmono">↑</span> <em>or</em> shift k</dt>
          <dd>Scroll all the way up</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>shift <span class="badmono">↓</span> <em>or</em> shift j</dt>
          <dd>Scroll all the way down</dd>
        </dl>
      </div><!-- /.column.last -->
    </div>
  </div>

  <div >
    <div class="rule"></div>
    <div class="columns threecols">
      <div class="column first" >
        <h3>Source Code Browsing</h3>
        <dl class="keyboard-mappings">
          <dt>t</dt>
          <dd>Activates the file finder</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>l</dt>
          <dd>Jump to line</dd>
        </dl>
        <dl class="keyboard-mappings">
          <dt>y</dt>
          <dd>Expand URL to its canonical form</dd>
        </dl>
      </div>
    </div>
  </div>
</div>

    <div id="markdown-help" class="instapaper_ignore readability-extra">
  <h2>Markdown Cheat Sheet</h2>

  <div class="cheatsheet-content">

  <div class="mod">
    <div class="col">
      <h3>Format Text</h3>
      <p>Headers</p>
      <pre>
# This is an &lt;h1&gt; tag
## This is an &lt;h2&gt; tag
###### This is an &lt;h6&gt; tag</pre>
     <p>Text styles</p>
     <pre>
*This text will be italic*
_This will also be italic_
**This text will be bold**
__This will also be bold__

*You **can** combine them*
</pre>
    </div>
    <div class="col">
      <h3>Lists</h3>
      <p>Unordered</p>
      <pre>
* Item 1
* Item 2
  * Item 2a
  * Item 2b</pre>
     <p>Ordered</p>
     <pre>
1. Item 1
2. Item 2
3. Item 3
   * Item 3a
   * Item 3b</pre>
    </div>
    <div class="col">
      <h3>Miscellaneous</h3>
      <p>Images</p>
      <pre>
![GitHub Logo](/images/logo.png)
Format: ![Alt Text](url)
</pre>
     <p>Links</p>
     <pre>
http://github.com - automatic!
[GitHub](http://github.com)</pre>
<p>Blockquotes</p>
     <pre>
As Kanye West said:
> We're living the future so
> the present is our past.
</pre>
    </div>
  </div>
  <div class="rule"></div>

  <h3>Code Examples in Markdown</h3>
  <div class="col">
      <p>Syntax highlighting with <a href="http://github.github.com/github-flavored-markdown/" title="GitHub Flavored Markdown" target="_blank">GFM</a></p>
      <pre>
```javascript
function fancyAlert(arg) {
  if(arg) {
    $.facebox({div:'#foo'})
  }
}
```</pre>
    </div>
    <div class="col">
      <p>Or, indent your code 4 spaces</p>
      <pre>
Here is a Python code example
without syntax highlighting:

    def foo:
      if not bar:
        return true</pre>
    </div>
    <div class="col">
      <p>Inline code for comments</p>
      <pre>
I think you should use an
`&lt;addr&gt;` element here instead.</pre>
    </div>
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