function addLoadEvent(func) {   
   var oldonload = window.onload;   
   if (typeof window.onload != 'function') {   
     window.onload = func;   
   } else {   
     window.onload = function() {   
       oldonload();   
      func();   
    }   
   }   
}   
   
 //addLoadEvent(nameOfSomeFunctionToRunOnPageLoad);  
//http://www.sitepoint.com/blogs/2004/05/26/closures-and-executing-javascript-on-page-load/

function popupWindow(url) {
  window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=100,height=100,screenX=150,screenY=150,top=150,left=150')
}