function launch(url,name,mode) {
  if (mode == 1 )
  	winVars = "status=no,location=no,toolbar=yes,menubar=no,scrollbars=yes,width=480,height=480,left=50,top=50";
  else if (mode = 2)
    winVars = "status=yes,location=no,toolbar=yes,menubar=no,scrollbars=yes,width=640,height=480,left=50,top=50,resizable=yes";
  window.open(url,name,winVars); 
}