$(document).ready(function(){
	
  // THE DEFAULT PAGE SHOULD START WITH THE INFO AND COMMENTS HIDDEN
  $("div.more_info").hide();
  
  // SHOW THE LINK AND ADD AN EVENT
  $("p.comment_link").show();
  $("p.comment_link").click(function(){
    $("div.more_info").slideToggle("slow");
    $("p.comment_link").remove();
    return false;
  });
  
  // IF THERE IS A MESSAGE, ADD THE CLOSE BUTTON TO IT AND ADD AN EVENT
  $("p.close_message").show();
  $("p.close_message").click(function(){
    $("#message").remove();
    return false;
  });
  
 
  
  // ADD VALIDATION TO THE COMMENT FIELD OF THE COMMENT FORM
  var error_text = "Please enter a comment first."; 
  var error_class = "input_error";
  
  $("#commentfield").focus(function(){
	if ($(this).val() == error_text ) {
      $(this).val("").removeClass(error_class);
	}
    return false;
  });
  
  $('#add_comment_form').submit(function(){ 
    var comment = $("#commentfield").val(); 
    if (comment == null || comment == "" || comment == error_text) { 
        $("#commentfield").val(error_text).addClass(error_class);
        return false; 
    } 
  });
  
  
  
});