/**

 * Evitar repetición de valores

 *

 * @author Alexis88

 */

​

var noRepeat = {

    init: function(){

        var values = [];

        noRepeat.inputs = this.querySelectorAll("#foo input");

        noRepeat.parent = this.querySelector("#foo");

        noRepeat.parent.addEventListener("keypress", function(e){

            var input = e.target;

            if (values.indexOf(e.key) > -1) e.preventDefault();

            if (e.key.length) values.push(e.key);

        }, false);

    }

};

​

document.addEventListener("DOMContentLoaded", noRepeat.init, false);