Activate DFP layer1

layer1.js

window.console && console.log('start layer1 JS');

layerElement = document.getElementById('layer1--overlay');
layerElement.className = layerElement.className.replace('visuallyhidden', '');

closeElements = layerElement.getElementsByClassName('close');

for (var i = 0; i < closeElements.length; i++) {
    if (closeElements[i].addEventListener) {
        closeElements[i].addEventListener('click', function() {
            layerElement.className = layerElement.className + ' visuallyhidden';
        }, false);
    } else {
        closeElements[i].attachEvent('click', function() {
            layerElement.className = layerElement.className + ' visuallyhidden';
        });
    }
}

window.console && console.log('end layer1 JS');