function fopenwindow(surl,starget,swidth,sheight){
    window.open(surl,starget,"fullscreen=0,channelmode=0,channelmode=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width=" + swidth + ",height=" + sheight + ",left=" + (window.screen.width - swidth) / 2 + ",top=" + (window.screen.height - sheight) / 2 + "");
  }