title: Opening javascript popup window without address bar and title with height and width set in percentage according to screen resolution
body: <p>I want to open popup window using javascript with no title and address bar and also want to set its height and width in percentage according to screen resolution.How can i achieve this. 
  I did this code;</p>
  
  <pre><code> function popitup(url) {
  
          LeftPosition = (screen.width) ? (screen.width - 800) / 2 : 0;
          TopPosition = (screen.height) ? (screen.height - 700) / 2 : 0;
          var sheight = (screen.height) * 0.9;
          var swidth = (screen.width) * 0.8;          
  
          settings = 'height='+ sheight + ',width='+ swidth + ',top=' + TopPosition + ',left=' + LeftPosition + ',scrollbars=yes,resizable=yes,toolbar=no,status=no,menu=no, directories=no,titlebar=no,location=no,addressbar=no'
  
          newwindow = window.open(url, '', settings);
          if (window.focus) { newwindow.focus() }
          return false;
      }
  </code></pre>
  
  <p>but still i can see address and title bar.Is this is relative versions and type of browser?.If so how can i achieve these settings in latest versions of browser like IE9,Chrome,Firefox and safari?</p>