function valide_form_contact(theForm) {
	var alerte="";
	
	alerte+=valide_text(theForm.Nom,"-  Nom\n");
	alerte+=valide_text(theForm.Societe,"-  Societe\n");
	alerte+=valide_text(theForm.Email,"-  E-mail\n");
	alerte+=valide_text(theForm.Message,"-  Message\n");

	alerte_message(alerte,theForm);
}

function valide_form_news(theForm) {
	var alerte="";
	alerte+=valide_text(theForm.Prenom,"-  Prénom\n");
	alerte+=valide_text(theForm.Nom,"-  Nom\n");
	alerte+=valide_text(theForm.Fonction,"-  Fonction\n");
	alerte+=valide_text(theForm.Societe,"-  Société\n");
	alerte+=valide_text(theForm.Email,"-  E-mail\n");

	alerte_message(alerte,theForm);
}

function valide_text(theText,theMessage) {
	if(theText.value=="") return theMessage;
	else return "";
}

function valide_chek(theBox,theMessage) {
	for(i=0;i<theBox.length;i++) {
		theValue=theBox[i];
		if(theValue.checked==true) var isCheck=1;
	}
	
	if(isCheck==1) return "";
	else return theMessage;
}

function valide_sele(theBox,theMessage) {
	for(i=0;i<theBox.length;i++) {
		theValue=theBox[i];
		if(theValue.selected==true) var isCheck=1;
	}
	
	if(isCheck==1) return "";
	else return theMessage;
}

function valide_date(theJour,theMois,theAnnee,theMessage) {
	if(theJour.value=="" || theMois.value=="" || theAnnee.value=="" || theJour.value=="JJ" || theMois.value=="MM" || theAnnee.value=="YYYY" ||
		 (theJour.value==1 && theMois.value==1 && theAnnee.value==1970)) return theMessage;
	else return "";
}

function alerte_message(theMessage,theForm) {
	if(theMessage!="") {
			theMessage="Vous devez remplir les champs suivants : \n\n" + theMessage;
			alert(theMessage);
	}
	else theForm.submit();
}