title: How to extract a specific input field value from external webpage using Javascript
body: <p>i get the webpage content from an external website using ajax but now i want a function which extract a specific input field value which is already autofilled.</p>
  
  <p>the webpage content is like this:</p>
  
  <pre><code>.........
  &lt;input name="fullname" id="fullname" size="20" value="David Smith" type="text"&gt;
  &lt;input name="age" id="age" size="2" value="32" type="text"&gt;
  &lt;input name="income" id="income" size="20" value="22000$" type="text"&gt;
  .........
  </code></pre>
  
  <p>I only want to get the value of <code>fullname</code>, maybe with some javascript regex, or some jQuery dom parser, i know i can do it easily with php but i want it using Javascript or jQuery.</p>
  
  <p>Note: this inputs are not hosted in my page, they are just pulled from other website through Ajax.</p>
  
  <p>Thanks</p>