+
−function qid(id) {
+
−  return id.replace(/([.:])/g, "\\$1");
+
−}
+
−
+
−function beforeComment(formData, jqForm, options) {
+
−  var form = jqForm[0];
+
−  if (!form.comment.value) {
+
−    $(options.target + " span.comment_error").empty().append(
+
−      "<span class=\"comment_error\">Your comment is empty</span>");
+
−    return false;
+
−  }
+
−  if (!form.name.value) {
+
−    $(options.target + " span.comment_error").empty().append(
+
−      "<span class=\"comment_error\">Please provide a name</span>");
+
−    return false;
+
−  }
+
−  $(options.target + " span.comment_error").empty().after(
+
−    "<img src=\"/support/icons/throbber.gif\" style=\"vertical-align: middle\"/>");
+
−  $(options.target + " input[@name=submit]").attr("disabled", true);
+
−}
+
−
+
−function ajaxifyForm(id) {
+
−  var q = qid(id);
+
−  
+
−  $("#form_" + q).ajaxForm({ beforeSubmit: beforeComment,
+
−			     success: function() { ajaxifyForm(id); },
+
−			     target: "#comments_" + q });
+
−}
+
−
+
−function toggleComment(id) {
+
−  $("#toggle_" + qid(id)).nextAll().toggle();
+
−  return false;
+
−}
+
−
+
−function loadComments(id) {
+
−  $("#comments_" + qid(id)).load(location.protocol + "//" + location.host +
+
−				 "/comments/single/" + id + "/", function() {
+
−    ajaxifyForm(id);
+
−  });
+
−  return false;
+
−}
+
−
+
−function loadAllComments() {
+
−  $("a.commenttoggle").each(function() {
+
−    var id = $(this).attr("pid");
+
−    if (id) {
+
−      loadComments(id);
+
−    }
+
−  });
+
−}
+
−
+
−$(document).ready(function() {
+
−  function loading(id) {
+
−    return " <span id=\"comments_" + id + "\" class=\"comment\">" +
+
−      "<span pid=\"" + id + "\" class=\"commenttoggle\">Loading..." +
+
−      "</span></span>";
+
−  }
+
−  $("div.toc>p")
+
−    .after("<p style='display: none;'><a onclick='return loadAllComments()'>" +
+
−	   "Load all comments (<b>slow</b>)</a></p>")
+
−    .toggle(function() { $(this).nextAll().show("normal"); },
+
−	    function() { $(this).nextAll().hide("normal"); })
+
−    .hover(function() { $(this).fadeTo("normal", 0.8); },
+
−	   function() { $(this).fadeTo("normal", 0.35); });
+
−  $(".chapter p[@id]").each(function() {
+
−    $(this).append(loading($(this).attr("id")));
+
−  });
+
−  $(".chapter table[@id].equation").each(function() {
+
−    id = $(this).attr("id");
+
−    $("#" + id + " tr").after('<tr><td colspan="4">' + loading($(this).attr("id")) + '</td></tr>');
+
−  });
+
−  $(".chapter pre[@id]").each(function() {
+
−    $(this).after(loading($(this).attr("id")));
+
−  });
+
−  var chapid = $("div.preface, div.chapter, div.appendix, div.bibliography").attr("id");
+
−  $("#chapterfeed").attr("href",
+
−			 $("#chapterfeed").attr("href") + chapid + "/");
+
−  $.getJSON(location.protocol + "//" + location.host + "/comments/chapter/" +
+
−	    chapid + "/count/", function(data) {
+
−    $.each(data, function(id, item) {
+
−      var s = item == 1 ? "" : "s";
+
−      $("#comments_" + qid(id) + " span.commenttoggle").replaceWith(
+
−        "<a class='commenttoggle' id='toggle_" + id + "' " +
+
−	"pid='" + id + "' " +
+
−	"onclick='return loadComments(\"" + id + "\")' " +
+
−	"href='comments: show / hide'>" + item + " comment" + s + "</a>");
+
−    });
+
−    $("span.commenttoggle").each(function() {
+
−      var id = $(this).attr("pid");
+
−      $(this).replaceWith("<a class='commenttoggle' id='toggle_" + id + "' " +
+
−			  "onclick='return loadComments(\"" + id + "\")' " +
+
−			  "href='comment: add'>No comments</a>");
+
−    });
+
−  });
+
−});