function calendarPopup (dBx,mBx,yBx){
	windowWidth = 250;
	windowHeight = 280;
	screenWidth = screen.availWidth;
	screenHeight = screen.availHeight;
	leftMargin = (screenWidth - windowWidth) / 2
	topMargin = ((screenHeight - windowHeight) / 2) + 20
	win=window.open('/inc/datePicker.asp?dBx='+dBx+'&mBx='+mBx+'&yBx='+yBx,'datePicker', 'width=' + windowWidth + ',height=' + windowHeight + ',toolbar=0,status=0,resizable=1,scrollbars=0,top=' + topMargin + ',left=' + leftMargin);
}