JSFiddle - React, Tailwind, and code Playground

HTML

<a href="http://enderecodosite.com/controller/func/params?id=999&method=67&info=547">teste 1 </a>

<a href="http://enderecodosite.com/controller/func/params?id=1106162&method=67&info=547">teste 2 </a>

<a href="http://enderecodosite.com/controller/func/params?id=65&method=67&info=547">teste 3</a>

CSS

.blackPane {
    position: fixed;
    top: 0px;
    left: 0px;
    right: 0px;
    bottom: 0px;
    z-index: 999;
    background-color: rgba(0, 0, 0, .5);
}
.modal {
    width: 300px;
    height: 200px;
    position: absolute;
    top: 50%;
    left: 50%;
    margin: -100px -150px;
    background-color: white;
    -webkit-box-shadow: 0px 0px 10px rgba(0, 0, 0, .3);
    -moz-box-shadow: 0px 0px 10px rgba(0, 0, 0, .3);
    -o-box-shadow: 0px 0px 10px rgba(0, 0, 0, .3);
    box-shadow: 0px 0px 10px rgba(0, 0, 0, .3);
}
p {
    font: 14px/1.5"Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #444;
    text-align: center;
    margin-top: 80px;
}

JavaScript

(function () {

    var getUserID = function (url) {
        /**
         * Dado um URL, esta funcao vai procurar o ID do utilizador. 
         * desde que tenha o formato id=XXX
         * Sendo X numeros.
         */

        var reg = /id=[0-9]*/gi,
            userId = reg.exec(url)[0].substr(3);

        return userId;
    },
    openModalWindow = function (e) {
        /**
         * Cria uma Janela modal,
         * Corre a funcao para ir buscar o ID do utilizador
         * Escreve o ID do user na janela modal.
         */
        e.preventDefault();

        var ID = getUserID($(e.currentTarget).attr('href')),
            blackPane = document.createElement('div'),
            modal = document.createElement('div'),
            $blackPane;

        blackPane.setAttribute('class', 'blackPane');
        modal.setAttribute('class', 'modal');

        blackPane.appendChild(modal);

        document.body.appendChild(blackPane);

        $blackPane = $(blackPane);
        $blackPane.find('.modal').html('<p>O ID do utilizador Ă©: ' + ID + '</p>');
    };

    $('body').delegate('a', 'click', openModalWindow);

}());