function valid() {
		 document.mots.submit(); clearTimeout(timer); timer = setTimeout("chro()", 10000);
		 document.chrono.timer0.value=""+t0+"";
		 for (var i=0; i<=n; i++) {
	  		 document.mots.elements[i].readOnly=true;
		 }
	  }
	  
	  function chro() {
         var chro1= new Date(); var t = Math.floor((chro1.getTime()-chro0.getTime())/1000);
         document.chrono.timer0.value=""+t+"";		
         timer = setTimeout("chro()", 1000);
		 if(t >= t0) {
		 valid();
		 }
		 if(t > t0) {
		 document.mots.alert0.value="veuillez patienter connexion faible ! validation auto toutes les 10 secondes";
		 }
	  }