function MM_openWindow(theURL,winName,features) { //v2.0
  var myWidth=screen.width;
  var myHeight=screen.height;
  var myLeft=(myWidth/2)-(187);
  var myTop=(myHeight/2)-(187);
  features=features+',left='+myLeft+',top='+myTop;
  window.open(theURL,winName,features);
}

function MM_openBxchangeWindow(theURL,winName,features) { //v2.0
  var myWidth=screen.width;
  var myHeight=screen.height;
  var myLeft=0;
  var myTop=0;
  features=features+',left='+myLeft+',top='+myTop+',resizable=yes,scrollbars=yes';  
  window.open(theURL,winName,features);
}