Close window

gistfile1.js

 if (navigator.userAgent.indexOf("MSIE") > 0) {  
      if (navigator.userAgent.indexOf("MSIE 6.0") > 0) {  
          window.opener = null; window.close();  
      }  
      else {  
          window.open('', '_top'); window.top.close();  
      }  
  }  
  else if (navigator.userAgent.indexOf("Firefox") > 0) {  
      window.location.href = 'about:blank ';  
      //window.history.go(-2);
  }  
  else {  
      window.opener = null;   
      window.open('', '_self', '');  
      window.close();  
  }