function fctSendNewsletter(e) {

    //Check the name email
    var emailID = document.getElementById("txtEmail");
    if ((emailID.value==null)||(emailID.value=="")){

        alert("Please write a E-mail");
        document.getElementById("txtEmail").focus();
        return false;
    }
    
    if (echeck(emailID.value)==false){
    
        alert("Please write a correct E-mail");
		emailID.focus();
		return false;
	}
	
	$.getJSON(e.id + '/AddEmail/' + emailID.value,
    function(data) {
        if (data == '' || data == null) {
            alert("Sorry, is not possible get data.");
            return;
        }
        else {
            alert("Thank you, soon you will receive our Newsletter");
            emailID.value = "";
            emailID.focus();
        }
    });
    return false;
}

function echeck(str) {

	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
	    return false;
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   return false;
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	    return false;
	}

	 if (str.indexOf(at,(lat+1))!=-1){
	    return false;
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	    return false;
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
	    return false;
	 }
	
	 if (str.indexOf(" ")!=-1){
	     return false;
	 }

	 return true;					
}