function open_Board()
{
window.open("Board.html","_blank","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width=700, height=450, left=0, top=0");

}





function open_BoardGuide()
{
window.open("BoardGuide.html","_blank","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width=700, height=450, left=0, top=0");

}