function od(u,w,h,x,y)
{
  if(!w)w=450;if(!h)h=350;if(!x)x=(screen.width-w)/2;if(!y)y=(screen.height-h)/2;
  var w=window.open(u,"_blank","resizable=no,scrollbars=no,top="+x.toString()+",left="+y.toString()+",width="+w.toString()+",height="+h.toString());
  w.focus();
}