JS: WP AJAX

gistfile1

var $j = jQuery.noConflict();

$j(document).ready(function() {
	$j('#load-more').on('click', function(e){
		var $this = $j(this);
		e.preventDefault();

		$j('#results-message').css('display', 'block');
		
		post_number = $this.data('post-number');
		url = $this.data('url');
		pag = $this.data('page');
		media = $this.data('media');

		var data = {
			action: 'get_more_posts',
			post_number: post_number,
			media: media,
			pag: pag
		}

		$j.ajax({
			cache: false,
			dataType : 'json',
			url: url + '/wp-admin/admin-ajax.php',
			type: 'POST',
			data: data,
			error: function(response, textStatus, errorThrown) {
				 // console.log(response);
				 // console.log(response.html);
			},
			success: function(response, textStatus, jqXHR) {	
				if (response.status == 'success') {
					
					$j('#results').append(response.html);
				
					$j('#results-message').css('display', 'none');

					if( response.none_found){
						
						$j('#results-message').text('No More Posts.');
						
					}else{
							
						if(!response.have_more){ 

							$this.css('display', 'none');
							$j('.back-to-top').show();

						}else if(response.have_more){

							pag++;
							$j('#load-more').data('page', pag);
							
						}
					}
			    
				}
			}	
		});
	});
});