somejsfile.js

  // class and rel for grabbing a file and printing it inline via AJAX
  var ajaxme = function(container, source){
    $.ajax({
      url: source,
      success: function(data){
        container.text(data);
      },
      error: function(){
        container.html('File Not Found.')
      }
    })
  } 
  
  $('.ajax-me').each(function(){
    if ($(this).find('pre').hasClass('result') != true){
      $(this).append('<pre class="result"></pre>')
      
      var container = $(this).find('pre');
      var source = $(this).attr('rel');
      
      ajaxme(container, source);
    }
  });