title: How to open a popup window when click on AjaxTabpanel in asp.net
body: <p>I have web application in that I have a ajaxTabedinterface. I want open the pop-window when I click on tab-panel for this. I have created Javascript function and I call this function in tab-panel OnclientClick, and I run the application. Then it doesn't show Tabs it show just white page only. Here I have post my code what I did. Please check it once give me any suggestion where I can change the code .....</p>
  
  <p><strong>Tabpanle</strong></p>
  
  <pre><code>                &lt;cc1:TabPanel runat="server" HeaderText="Documents" OnClientClick="openwindow(),return false;" ID="TabPanel4"&gt;
  
           &lt;ContentTemplate&gt; &lt;/ContentTemplate&gt;
            &lt;/cc1:TabPanel&gt; 
  </code></pre>
  
  <p><strong>Javascript</strong> </p>
  
  <pre><code>   &lt;script type="text/javascript" language="javascript"&gt;
  
      function openwindow() {
  
          retVal = window.open("AllClients.aspx", null, "left=150px,menubar=no, top=150px, width=800px, height=450px, scrollbars=no, status=no, resizable=no");
          retval.focus();
      }
  &lt;/script&gt;
  </code></pre>
  
  <p>Please help me how to open a popupwindow on tabpanel onclient click event...</p>