var url = 'http://www.eiffage.fr/emploi/CLEMESSY/index.html';

function changePage(url) {
	/*window.location.replace(url);*/
	window.open(url, 'Emploi', 'location=yes,toolbar=yes,directories=yes,menubar=yes,resizable=yes,screenX=0,screenY=0,scrollbars=yes,status=yes,width=800,height=600');
}

function startTimer() {
   mytimer = window.setTimeout("changePage(url)", 10000);
}

startTimer();