// pop up the main help file
function helpwin1()
{
windowspecs = "toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=600,height=400";
window.open("help_01.html", "help", windowspecs);
}
// pop up the compass help file
function helpwin2()
{
windowspecs = "toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=600,height=400";
window.open("help_03.html", "help", windowspecs);
}