function validate_email(field,alerttxt)
{
with (field)
{

split_email=value.split(/@/) ;
apos=value.indexOf("@");
dotpos=value.lastIndexOf(".");
if ((apos<1||dotpos-apos<2) || (split_email[1].indexOf('.',0)==-1))
  {alert(alerttxt);return false;}
else { return true;}
}

}


// test mail nous ecrire
function validate_form(thisform)
{
	var msg="email invalide" ;

with (thisform)
{
if (validate_email(email, msg)==false){
	email.focus();return false;
}
}}


// newsletter
function validate_form_newsletter(thisform_newsletter)
{
	var msg2=" votre email n'est pas valide" ;

with (thisform_newsletter)
{
if(validate_email(_aph_neswletter, msg2)==false){
	_aph_neswletter.focus(); return false;
	}else{document.submit;  action="?aph_ref_prod=_aph_news_rq"}
}
}

//conseiller à un ami
function validate_form_ami(thisform_ami)
{
	var msg_ami="L'email de votre ami(e) n'est pas valide" ;

with (thisform_ami)
{
if(validate_email(emailami, msg_ami)==false){
	emailami.focus(); return false;
	}//else{document.submit;  action="?aph_ref_prod=_aph_news_rq"}
}
}