function comprobarLogin(){
 
    this.url = "";
    this.errormail = "Compruebe su mail";
    this.errorpass = "Compruebe su password";
     
}

comprobarLogin.prototype.login = function (email, password) {
    var strError = ""
    if (!isEml(email)) strError = this.errormail + '\n';
    if (password.length == 0) strError += this.errorpass;
    if (strError != "") {
        alert(strError);
    }
    else {        
        document.getElementById("accion").value = "loginAgencia";
        document.getElementById("parametros").value = "&email=" + email + "&password=" + password;
    }

}