禁用按钮

Question

I need help trying to make my button disable after it has been clicked, any help would be grateful and if you need anymore information just ask me, Thanks! any help will be appreciated.

function addGame() 
{
    var side = $("#side").val();
    var steamid = $("#steamid").val();
    var amount = $("#amount").val();
    var buttonText = document.getElementById('createGameButton').innerHTML;

    if(buttonText=='Are you sure?')
    {
        $.ajax(
        {
            url: 'addGame.php', 
            type: 'POST', 
            data: 'side=' + side + '&steamid=' + steamid + '&amount=' + amount, 
            dataType: 'text', 
            success: function (data) 
            {
                document.getElementById('game-alert').innerHTML = data;
                $("#game-alert").fadeIn();
                refreshGames();
                document.getElementById('createGameButton').innerHTML = 'Create Game';
            }
        });
    }

    if(buttonText=='Create Game')
    {
        document.getElementById('createGameButton').innerHTML = 'Are you sure?';
    }
}

Answer 1

$( "#createGameButton" ).prop( "disabled", true );