function trim(aString)
{var regExpBeginning=/^\s+/;var regExpEnd=/\s+$/;return aString.replace(regExpBeginning,"").replace(regExpEnd,"")}

function verif_form(formulaire,id_mail)
{email=trim(document.getElementById(id_mail).value);
var reg=new RegExp('^[a-zA-Z0-9._-]*@[a-zA-Z0-9.-]*[.][a-zA-Z]{2,3}$');
if(reg.test(email)){formulaire.submit();}else{alert("L'adresse email est invalide.\n")}}

function clignotement(formul)
{var delay1=800;var delay2=400;var texte="votre @ email";
var bouton=document.getElementById(formul).mail;
if(bouton.value!="")
{if(bouton.value==" ")
{bouton.value=texte;delay=delay1}
else if(bouton.value=="votre @ email")
{bouton.value=" ";delay=delay2} 
else
{var delay=800;}
idTimer=setTimeout("clignotement('"+formul+"')",delay)}
else{return false}}

function ToucheEntree(event){
if(!event&&window.event){event=window.event}
if(event.keyCode==13)
{event.returnValue=false;event.cancelBubble=true}
if(event.which==13)
{event.preventDefault();event.stopPropagation()}
}