function openCalendrier(page){
	var top=(screen.height-700)/2;
	var left=(screen.width-550)/2;
	window.open(page,'ercisNous','top='+top+',left='+left+',width=550,height=700,scrollbars=yes');
}

function openMachinacartes(page){
	var top=(screen.height-380)/2;
	var left=(screen.width-760)/2;
	window.open(page,'ercisNous','top='+top+',left='+left+',width=760,height=380,scrollbars=yes');
}