function verifEmail(mail) {
	var cnt = 0;
	  var ret = true;
	  var car = "";
	  var carAfter = "";
	  var carBefore = "";
	  var nbrcar = mail.length;
	  var nbrarobase = 0;
	  var nbrpoint = 0;
	  var goodcar = "@0123456789.-_abcdefghijklmnopqrstuvwxyz";
	  for(cnt=0;cnt<nbrcar;cnt++) {
		var car = mail.substr(cnt,1);
		if(goodcar.indexOf(car) >= 0) {
		  carAfter = "";
		  carBefore = "";
		  if(car == "@") {
			if((cnt-1) >= 0) {
			  carBefore = mail.substr((cnt-1),1);
			}
			if((cnt+1)<nbrcar) {
			 carAfter = mail.substr((cnt+1),1);
			}
			if(cnt>0 && nbrarobase==0 && cnt<(nbrcar-4) && !(carBefore==".") && !(carAfter==".") && !(carBefore=="-") && !(carAfter=="-") && !(carBefore=="_") && !(carAfter=="_")) {
			  nbrarobase++;
			} else {
			 ret = false;
			 break;
			}
		  }
		  if(car == ".") {
			if((cnt-1) >= 0) {
			  carBefore = mail.substr((cnt-1),1);
			}
			if((cnt+1)<nbrcar) {
			 carAfter = mail.substr((cnt+1),1);
			}
			if(cnt>0 && cnt<(nbrcar-2) && !(carBefore==".") && !(carAfter==".")) {
			  nbrpoint++;
			} else {
			  ret = false;
			  break;
			}
		  }
		} else {
		  ret = false;
		  break;
		}
	  }
	  if(nbrarobase == 0 || nbrpoint == 0 || mail.substr(0,1) == "." || mail.substr(0,1) == "-" || mail.substr(0,1) == "_" || mail.substr((nbrcar-1),1) == "." || mail.substr((nbrcar-1),1) == "-" || mail.substr((nbrcar-1),1) == "_") {
		ret = false;
	  }
	  return ret;
	}
function envoi()
{
var mail = document.formulaire.email.value;
	{
if (formulaire.valideemail.checked) {
	verifEmail(mail);
	}
	else
	{
	window.print();

	return ;
}{
		var mail = formulaire.email.value;
		if(verifEmail(mail)) { 
			formulaire.email.style.backgroundColor = "#ffffff";
			document.formulaire.submit(); 
				window.print();
		} else 	{		
			alert("Le format de l'email est incorrect !");
			formulaire.email.style.backgroundColor = "#ff7373";
			formulaire.email.focus();		
		}		
	return ;
	}
}}