function openWindow(url,name) {  
  w=470;
  h=368;
  x=screen.availWidth/2-w/2;
  y=screen.availHeight/2-h/2;
  popupWin = window.open(url, name, 'menubar=no,resizable=yes,titlebar=no,width='+w+',height='+h+',left='+x+',top='+y+',screenX='+x+',screenY='+y)
  popupWin.focus ();
}

function popup(url,name) {  
  w=600;
  h=475;
  x=screen.availWidth/2-w/2;
  y=screen.availHeight/2-h/2;
  popupWin = window.open(url, name, 'menubar=no,resizable=yes,titlebar=no,scrollbars=yes,width='+w+',height='+h+',left='+x+',top='+y+',screenX='+x+',screenY='+y)
  popupWin.focus ();
}