function jellyFish(theURL,theName,xsize,ysize){
	xl = (screen.availWidth/2)-(xsize/2);
	tt = (screen.availHeight/2)-(ysize/2);
  if (document.all) po=window.open(theURL,theName,'scrollbars=no,width='+xsize+',height='+ysize+',left='+xl+',top='+tt);
  else {
    if (parseFloat(navigator.appVersion)<4.8)
      po=window.open(theURL,theName,'left='+xl+',top='+tt+',width='+xsize+',height='+ysize+',toolbar=0,status=0,location=0');
    else {
      po=window.open(theURL,theName,'scrollbars=no,toolbar=0,status=0,location=0');
    }
  }
}