var newsletterField, newsletterBtn
window.onload = function(){
	newsletterField = document.getElementById("newsletter");
	newsletterBtn = document.getElementById("newsletterSubmit");
	newsletterBtn.onclick = closeNewsletter;
}
function newsletter(){
document.getElementById("newsletterSubmit").onclick= closeNewsletter;
if (document.getElementById("newsletter").style.display != "block"){
	openNewsletter()
} else {
	closeNewsletter()
}
}
function closeNewsletter(){
document.getElementById("newsletter").style.display = "none"
}
function openNewsletter(){
document.getElementById("newsletter").style.display = "block"
}


function CheckFormNewsletterValues() {
   var email = document.frmNewsletter.txtEmail.value
   /* var reg = /^[a-zA-Z0-9_-]+@[a-zA-Z0-9-]{2,}[.][a-zA-Z]{2,3}$/ */
   var reg = /^([0-9a-zA-Z]+[-._+&])*[0-9a-zA-Z]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}$/
 
   if (reg.exec(email) == null) { 
   alert("Veuillez introduire une adresse e-mail valide");
   document.frmNewsletter.txtEmail.focus() 
   return false
   }

   document.frmNewsletter.submit() 
   }