var     configuratorButton      = document.getElementById("configurator-button");
var     configuratorModal       = document.getElementById("configurator-modal");
configuratorButton.onclick      = onConfiguratorButtonClick;

var isConfiguratorShown = false;
function onConfiguratorButtonClick(event) {
    
    if(isConfiguratorShown == false) {
        configuratorModal.style.display                     = "block";
        isConfiguratorShown                                 = true;
        console.log("Showing Configurator-Modal!");
        return;
    }
    configuratorModal.style.display                     = "none";
    isConfiguratorShown                                 = false;
    console.log("Hiding Configurator-Modal!");
}