function cvtcode() { 
if (event.keyCode < 48 || event.keyCode > 57)
{
event.returnValue = false;
}
}

 function control(form1) {
	    if (form1.nom.value == "" ) {
		alert("Please enter your first name.");
		form1.nom.focus();
		return false;
		}
	    if (form1.prenom.value == "" ) {
		alert("Please enter your last name.");
		form1.prenom.focus();
		return false;
		}
	    if (form1.adresse.value == "" ) {
		alert("Please enter your adress.");
		form1.adresse.focus();
		return false;
		}
	    if (form1.ville.value == "" ) {
		alert("Please enter your city.");
		form1.ville.focus();
		return false;
		} 
		if (form1.cp.value == "" ) {
		alert("Please enter your postal code.");
		form1.cp.focus();
		return false;
		} 
	    if (form1.pays.value == "" ) {
		alert("Please select your country.");
		form1.pays.focus();
		return false;
		} 
		if (form1.email.value == "" || form1.email.value.indexOf('@',1)== -1 || form1.email.value.indexOf('.',2)==-1){
		alert("Please enter your e-mail");
		form1.email.focus();
		return false;
	}
	if (form1.demande.value == "" ) {
		alert("Please enter your request.");
		form1.demande.focus();
		return false;
		} 
		
		if (form1.code.value == "" ) {
		alert("Please enter the code.");
		form1.code.focus();
		return false;
		} 
		 
	return true ;
	}