function snb(){
			var emailnb= document.getElementById("emailnb").value;
			if(emailnb.indexOf('@',0)==-1 || emailnb.indexOf('.',0)==-1){
				document.getElementById("ie").innerHTML= "<font color='red'>U heeft geen geldig emailadres ingevoerd.</font>";
			}else{
				ajaxFunction('icaros/programfiles/nieuwsbrief/sn.asp?email=' + emailnb,'nb',false,false);
			}
			return false;
		}