var defaultImageUrl = document.getElementById('plexorin_default_image_preview').src;
        document.addEventListener('DOMContentLoaded', function() {
            var images = document.querySelectorAll('.content-url');
            images.forEach(function(img) {
                img.src = defaultImageUrl;
            });
 
            var frame;
            document.getElementById('plexorin_default_image_button').addEventListener('click', function(e) {
                e.preventDefault();
                if (frame) {
                    frame.open();
                    return;
                }
                frame = wp.media({
                    title: 'Select or Upload Media',
                    button: {
                        text: 'Use this media'
                    },
                    multiple: false
                });
 
                frame.on('select', function() {
                    var attachment = frame.state().get('selection').first().toJSON();
                    document.getElementById('plexorin_default_image').value = attachment.id;
                    var imageUrl = attachment.url;
                    document.getElementById('plexorin_default_image_preview').src = imageUrl;
                    document.getElementById('plexorin_default_image_preview').style.display = 'block';
                    document.getElementById('plexorin_default_image_remove').style.display = 'inline-block';
 
                    // Update the preview images
                    images.forEach(function(img) {
                        img.src = imageUrl;
                    });
                });
 
                frame.open();
            });
 
            document.getElementById('plexorin_default_image_remove').addEventListener('click', function(e) {
                e.preventDefault();
                document.getElementById('plexorin_default_image').value = '';
                document.getElementById('plexorin_default_image_preview').style.display = 'none';
                this.style.display = 'none';
 
                // Reset the preview images to default
                images.forEach(function(img) {
                    img.src = defaultImageUrl;
                });
            });
        });