title: Pass value to popup window
body: <p>I have some text field  for send to popup window ( I want send productPrice and productName) :</p>
  
  <pre><code>&lt;tr&gt;
    &lt;form&gt;
    &lt;td&gt; ${product.getProductName()}&lt;/td&gt;
      &lt;input type="hidden" name="productName" value=${product.getProductName()}&gt;
    &lt;td&gt;${product.getPrice()}&lt;/td&gt;
      &lt;input type="hidden" name="productPrice" value=${product.getPrice()}&gt;
    &lt;td&gt;
      &lt;input type="button" onclick="makeOrder()" value="Make order"/&gt;
    &lt;/td&gt;
    &lt;/form&gt;
  &lt;/tr&gt;
  </code></pre>
  
  <p>JS:</p>
  
  <pre><code> &lt;script type="text/javascript"&gt;
  
  function makeOrder(){
    window.open("/user/makeOrder","","height=250,width=400,status=no,location=no,toolbar=no,directories=no,menubar=no");
  }
  </code></pre>
  
  <p></p>
  
  <p>How can I pass a variable ProductName and ProductPrice to popup window "/user/makeOrder" ? </p>