title: howto get $('input[name=...]').val() from $('form')[...];
body: <p>This my html code</p>
  
  <pre><code>&lt;div id="list_refer_1"&gt;
     &lt;form id="refer_1_0"&gt;
        &lt;input type="hidden" name="channel" value="1"&gt;
        &lt;input type="hidden" name="url" id="input_1_0" value="http://localhost:8000/"&gt;
        &lt;input type="button" onclick="pullrefer(1, 0);" value=" -  "&gt; 
        http://localhost:8000/ 
     &lt;/form&gt;
     &lt;form id="refer_1_xxxxx"&gt;   ///xxxxx is timestamp
        &lt;input type="hidden" name="channel" value="1"&gt;
        &lt;input type="hidden" name="url" id="input_1_1" value="http://127.0.0.1:8000/"&gt;
        &lt;input type="button" onclick="pullrefer(1, 1);" value=" -  "&gt; 
        http://127.0.0.1:8000/ 
     &lt;/form&gt;
     &lt;form id="refer_1_2"&gt;
        &lt;input type="hidden" name="channel" value="1"&gt;
        &lt;input type="hidden" name="url" id="input_1_2" value="http://localhost*"&gt;
        &lt;input type="button" onclick="pullrefer(1, 2);" value=" -  "&gt; 
        http://localhost* 
     &lt;/form&gt;
     ...
  </code></pre>
  
  <p>i can get value by </p>
  
  <pre><code>$('#list_refer_1 #refer_1_0 input[name=url]').val();
  </code></pre>
  
  <p>but i want get</p>
  
  <pre><code>$('input[name=url]').val() from $('#list_refer_1 **form**')**[1]**;
  </code></pre>
  
  <p>howto get it?
  Thank you.</p>