function Rcertify() {popupWin = window.open('http://www.bbbonline.org/cks.asp?id=915002230', 'Participant','location=yes,scrollbars=yes,width=450,height=300'); 
window.name = 'opener';
} 

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}