function ow(theURL,winName,xsize,ysize) {

  x=(screen.width-xsize)/2;
  y=(screen.height-ysize)/2;
  w=xsize;
  h=ysize;

  kommando='height='+h+',width='+w+',top='+y+',left='+x+',scrollbars=no,resizable=no';
  window.open(theURL,winName,kommando);
}

function ow1(theURL,winName,xsize,ysize) {

  x=(screen.width-xsize)/2;
  y=(screen.height-ysize)/2;
  w=xsize;
  h=ysize;

  kommando='height='+h+',width='+w+',top='+y+',left='+x+',scrollbars=yes,resizable=no';
  window.open(theURL,winName,kommando);
}

function ow2(theURL,winName,xsize,ysize) {

  x=(screen.width-xsize)/2;
  y=(screen.height-ysize)/2;
  w=xsize;
  h=ysize;

  kommando='height='+h+',width='+w+',top='+y+',left='+x+',scrollbars=no,resizable=no,toolbar=yes';
  window.open(theURL,winName,kommando);
}