function openPictureWin(imgFile, imgDir, imgWidth, imgHeight) { 
  theOpenPath = 'picture.php?file=' + imgFile + '&dir=' + imgDir; 
  theWindowStuff = 'width=' + (imgWidth*1+60) + ',' + 'height=' + (imgHeight*1+80) + ',toolbar=no,status=no,menubar=no,scrollable=no,resizable=no,directories=no'; 
  myWindow = window.open(theOpenPath, 'test', theWindowStuff); 
}