function OpenWindow(url, width, height, scroll) {
  NewWindow = open(url,"","width="+width+",height="+height+",menubar=no,toolbar=no,location=no,resizable=no,scrollbars="+(scroll ?  scroll :"yes")+",status=no,screenX=150,screenY=150");
}

function open_and_close( url ) {
opener.document.location = url;
this.close();
}