$(document).ready(function(){
var trigger = false;
var isLoaded = false;

    $("#getContent").click(function(){

    trigger = 1 - trigger;

    if (trigger) {
        $("#mode").hide();

    if (isLoaded == false)  {

        $("#divContent").show(function(){

        $.ajax({
            url: "load.php",
            cache: false,
        beforeSend: function() {
            $('#divContent').html('Получаем контент');
        },
        success: function(html){
            $("#divContent").html(html);
            isLoaded = true;
        }

        });
        return false;
        });
    } else {

    $("#divContent").show();
    }

    } else {
        $("#divContent").hide();
        $("#mode").show();
    }

        return false;
    });
});