function verif_contact()
{
	var verif=true;
	if (leform.ct_nom.value == "" )
	{
		leform.ct_nom.style.backgroundColor="#C0FAC5"
		verif=false;
	}
	if (leform.ct_mail.value == "")
	{
		leform.ct_mail.style.backgroundColor="#C0FAC5"
		verif=false;
	}
	else
	{
		x=bSyntaxeEmail(leform.ct_mail.value)
			if (x==false)
			{
				leform.ct_mail.style.backgroundColor="#FCD0D0"
				verif=false;
			}
			
	}
	if (leform.ct_demande.value == "")
	{
		leform.ct_demande.style.backgroundColor="#C0FAC5"
		verif=false;
	}
	

	return verif;
}

function bSyntaxeEmail(sMail)
{
 var re=/^[a-z\d]+((\.|-|_)[a-z\d]+)*@((?![-\d])[a-z\d-]{0,62}[a-z\d]\.){1,4}[a-z]{2,6}$/gi;
return (sMail.match(re)==sMail)&&(sMail.substr(sMail.lastIndexOf("@")).length<=256);
}