function t800() {
timerPage='./Speech_Timer/speech_timer_800x600.htm' ;
var PopWindow=window.open(timerPage,'Main', 
'toolbar=no,location=no,directories=no,status=yes,' + 
'menubar=no,scrollbars=yes,resizable=yes,copyhistory=yes,' +
'width=420,height=550, left=0, top=0 screenX=0, screenY=0');
}
function t1024() {
timerPage='./Speech_Timer/speech_timer_1024x768.htm' ;
var PopWindow=window.open(timerPage,'Main1', 
'toolbar=no,location=no,directories=no,status=yes,' + 
'menubar=no,scrollbars=yes,resizable=yes,copyhistory=yes,' +
'width=550,height=690, left=0, top=0 screenX=0, screenY=0');
}