wp_media_lib_frontend.js

jQuery(document).ready(function($) {
/**
 * Media Uploader
 */
	var media_uploader = null;
	function open_media_uploader_video(img, field) {
		media_uploader = wp.media({
			title: 'Select or Upload Media',
			button: {
				text: 'Use this media'
			},
			multiple: false  // Set to true to allow multiple files to be selected
		});

		media_uploader.on( 'select', function() {

			// Get media attachment details from the frame state
			var attachment = media_uploader.state().get('selection').first().toJSON();

			// Send the attachment URL to our custom image input field.
			$(img).attr('src', attachment.url).removeClass('hide').show();

			// Send the attachment id to our hidden input
			$(field).val( attachment.id );

		});

		media_uploader.open();
	}

	// Open Media Uploader
	$('.btn-upload').click(function(){
		var img 	= $(this).data('imagecontainer');
		var field 	= $(this).data('field');

		if (img==undefined) {
			img		= '#img_container';
		}

		if (field==undefined) {
			field	= '#featured_image';
		}

		open_media_uploader_video(img, field);
	});

	// Remove Photo
	$('.btn-removeupload').click(function(){

		var img 	= $(this).data('imagecontainer');
		var field 	= $(this).data('field');

		if (img==undefined) {
			img		= '#img_container';
		}

		if (field==undefined) {
			field	= '#featured_image';
		}

		$(img).hide();
		$(field).val('');
	});

});