text: $('.main_image_radio').on("click", function(e){
  	e.preventDefault;
  	var token = $('#main_image_token').val();
  	var id = $('.article_id').attr('value'); 
  	var main_image_id = $(this).val();
  	$.ajax({
  		url: '/admin/blog/set-main-image',
  		method: 'POST',
  		data: {'id': id, '_token': token, 'main_image_id': main_image_id}
  	});
  })