window.onerror=null;
function open_popup() {};

function open_popup(wh)
{
  top.popup_handle=window.open(wh,'wh_popup','toolbar=0,resizable=0,scrollbars=0,status=0,width=420,height=475,top=10,left=10');
  top.popup_handle.focus();
}

function open_ad(wh)
{
  top.popup_handle=window.open(wh,'wh_ad','toolbar=0,resizable=0,scrollbars=0,status=0,width=300,height=300,top=20,left=20');
  top.popup_handle.focus();
}

function open_secwin(wh)
{
  top.popup_handle=window.open(wh,'wh_secwin','toolbar=0,resizable=0,scrollbars=1,status=0,width=520,height=475,top=10,left=10');
  top.popup_handle.focus();
}

function open_note(wh, h)
{
  top.popup_handle=window.open(wh,'wh_note','toolbar=0,resizable=0,scrollbars=0,status=0,width=587,height='+h+',top=200,left=75');
  top.popup_handle.focus();
}

function open_graph(wh, h, w)
{
  top.popup_handle=window.open(wh,'wh_graph','toolbar=0,resizable=0,scrollbars=0,status=0,width='+w+',height='+h+',top=50,left=50');
  top.popup_handle.focus();
}

function open_zoom(wh, h, w)
{
  top.popup_handle=window.open(wh,"wh_zoom",'toolbar=0,resizable=0,scrollbars=1,width='+w+',height='+h+',top=20,left=20');
  top.popup_handle.focus();
}