function verif(email){
   var reg = /^[a-z0-9._-]+@[a-z0-9.-]{2,}[.][a-z]{2,3}$/
   return (reg.exec(email)!=null)
}

function verif_contact(){
	
	var ok = true;
	if(document.contact.description.value.length<5){
		document.contact.description.className='champ_erreur';
		document.contact.description.focus();
		ok = false;
	}else{
		document.contact.description.className='none';
	}

	if(document.contact.email.value.length<5||!verif(document.contact.email.value)){
		document.contact.email.className='champ_erreur';
		document.contact.email.focus();
		document.getElementById('msg-mail').innerHTML='Adresse e-mail invalide !';
		ok = false;
	}else{
		document.getElementById('msg-mail').innerHTML='';
		document.contact.email.className='none';
	}

	return ok;
}

function verif_devis(){
	
	var ok = true;
	if(document.devis.email.value.length<5||!verif(document.contact.email.value)){
		document.devis.email.className='champ_erreur';
		document.devis.email.focus();
		document.getElementById('msg-mail').innerHTML='E-mail invalide !';
		ok = false;
	}else{
		document.getElementById('msg-mail').innerHTML='';
		document.devis.email.className='none';
	}

	return ok;
}

function verif_audit(){
	
	var ok = true;

	if(document.audit.email.value.length<5||!verif(document.contact.email.value)){
		document.audit.email.className='champ_erreur';
		document.audit.email.focus();
		document.getElementById('msg-mail').innerHTML='E-mail invalide !';
		ok = false;
	}else{
		document.getElementById('msg-mail').innerHTML='E-mail invalide !';
		document.audit.email.className='none';
	}

	if(document.audit.url.value.length<1){
		document.audit.url.className='champ_erreur';
		document.audit.url.focus();
		document.getElementById('msg-url').innerHTML='Veuillez saisir l\'adresse de votre site internet.';
		ok = false;
	}else{
		document.getElementById('msg-url').innerHTML='';
		document.audit.url.className='none';
	}

	return ok;
}