function takeInput(e) {

    // enter === 13

    if(e.which != 13) {
        return false;
    }

    var question = this.value;

    appendOutput("
HUMAN : " + question + "
", output);
    appendOutput("
CHATBOT : " + processInput(question) + "
", output);
    appendOutput('
', output);

    this.focus();
    this.select();

    output.scrollByLines(100);
}

function processInput(question) {
    var answer = "I cannot answer this question";

    if (question.toUpperCase() == "GOOGLE ") {
        answer = "Here is what I found on Google:";
        window.open('https://www.google.com/search?q=');
    }
}