function toggle_private() {

        // Search for any private/public links on this page.  Store

        // their old text in "cmd," so we will know what action to

        // take; and change their text to the opposite action.

        var cmd = "?";

        var elts = document.getElementsByTagName("a");

        for(var i=0; i<elts.length; i++) {

          if (elts[i].className == "privatelink") {

            cmd = elts[i].innerHTML;

            elts[i].innerHTML = ((cmd && cmd.substr(0,4)=="show")?

                                    "hide private":"show private");

          }

        }

        // Update all DIVs containing private objects.

        var elts = document.getElementsByTagName("div");

        for(var i=0; i<elts.length; i++) {

          if (elts[i].className == "private") {

            elts[i].style.display = ((cmd && cmd.substr(0,4)=="hide")?"none":"block");

          }

          else if (elts[i].className == "public") {

            elts[i].style.display = ((cmd && cmd.substr(0,4)=="hide")?"block":"none");

          }

        }

        // Update all table rows containing private objects.  Note, we

        // use "" instead of "block" becaue IE & firefox disagree on what

        // this should be (block vs table-row), and "" just gives the

        // default for both browsers.

        var elts = document.getElementsByTagName("tr");

        for(var i=0; i<elts.length; i++) {

          if (elts[i].className == "private") {

            elts[i].style.display = ((cmd && cmd.substr(0,4)=="hide")?"none":"");

          }

        }

        // Update all list items containing private objects.

        var elts = document.getElementsByTagName("li");

        for(var i=0; i<elts.length; i++) {

          if (elts[i].className == "private") {

            elts[i].style.display = ((cmd && cmd.substr(0,4)=="hide")?

                                        "none":"");

          }

        }

        // Update all list items containing private objects.

        var elts = document.getElementsByTagName("ul");

        for(var i=0; i<elts.length; i++) {

          if (elts[i].className == "private") {

            elts[i].style.display = ((cmd && cmd.substr(0,4)=="hide")?"none":"block");

          }

        }

        // Set a cookie to remember the current option.

        document.cookie = "EpydocPrivate="+cmd;

      }

function show_private() {

        var elts = document.getElementsByTagName("a");

        for(var i=0; i<elts.length; i++) {

          if (elts[i].className == "privatelink") {

            cmd = elts[i].innerHTML;

            if (cmd && cmd.substr(0,4)=="show")

                toggle_private();

          }

        }

      }

function getCookie(name) {

        var dc = document.cookie;

        var prefix = name + "=";

        var begin = dc.indexOf("; " + prefix);

        if (begin == -1) {

          begin = dc.indexOf(prefix);

          if (begin != 0) return null;

        } else

        { begin += 2; }

        var end = document.cookie.indexOf(";", begin);

        if (end == -1)

        { end = dc.length; }

        return unescape(dc.substring(begin + prefix.length, end));

      }

function setFrame(url1, url2) {

          parent.frames[1].location.href = url1;

          parent.frames[2].location.href = url2;

      }

function checkCookie() {

        var cmd=getCookie("EpydocPrivate");

        if (cmd && cmd.substr(0,4)!="show" && location.href.indexOf("#_") < 0)

            toggle_private();

      }

function toggleCallGraph(id) {

        var elt = document.getElementById(id);

        if (elt.style.display == "none")

            elt.style.display = "block";

        else

            elt.style.display = "none";

      }

function expand(id) {

  var elt = document.getElementById(id+"-expanded");

  if (elt) elt.style.display = "block";

  var elt = document.getElementById(id+"-expanded-linenums");

  if (elt) elt.style.display = "block";

  var elt = document.getElementById(id+"-collapsed");

  if (elt) { elt.innerHTML = ""; elt.style.display = "none"; }

  var elt = document.getElementById(id+"-collapsed-linenums");

  if (elt) { elt.innerHTML = ""; elt.style.display = "none"; }

  var elt = document.getElementById(id+"-toggle");

  if (elt) { elt.innerHTML = "-"; }

}

function collapse(id) {

  var elt = document.getElementById(id+"-expanded");

  if (elt) elt.style.display = "none";

  var elt = document.getElementById(id+"-expanded-linenums");

  if (elt) elt.style.display = "none";

  var elt = document.getElementById(id+"-collapsed-linenums");

  if (elt) { elt.innerHTML = "<br />"; elt.style.display="block"; }

  var elt = document.getElementById(id+"-toggle");

  if (elt) { elt.innerHTML = "+"; }

  var elt = document.getElementById(id+"-collapsed");

  if (elt) {

    elt.style.display = "block";

    var indent = elt.getAttribute("indent");

    var pad = elt.getAttribute("pad");

    var s = "<tt class='py-lineno'>";

    for (var i=0; i<pad.length; i++) { s += "&nbsp;" }

    s += "</tt>";

    s += "&nbsp;&nbsp;<tt class='py-line'>";

    for (var i=0; i<indent.length; i++) { s += "&nbsp;" }

    s += "<a href='#' onclick='expand(\"" + id;

    s += "\");return false'>...</a></tt><br />";

    elt.innerHTML = s;

  }

}

function toggle(id) {

  elt = document.getElementById(id+"-toggle");

  if (elt.innerHTML == "-")

      collapse(id); 

  else

      expand(id);

  return false;

}

function highlight(id) {

  var elt = document.getElementById(id+"-def");

  if (elt) elt.className = "py-highlight-hdr";

  var elt = document.getElementById(id+"-expanded");

  if (elt) elt.className = "py-highlight";

  var elt = document.getElementById(id+"-collapsed");

  if (elt) elt.className = "py-highlight";

}

function num_lines(s) {

  var n = 1;

  var pos = s.indexOf("\n");

  while ( pos > 0) {

    n += 1;

    pos = s.indexOf("\n", pos+1);

  }

  return n;

}

// Collapse all blocks that mave more than `min_lines` lines.

function collapse_all(min_lines) {

  var elts = document.getElementsByTagName("div");

  for (var i=0; i<elts.length; i++) {

    var elt = elts[i];

    var split = elt.id.indexOf("-");

    if (split > 0)

      if (elt.id.substring(split, elt.id.length) == "-expanded")

        if (num_lines(elt.innerHTML) > min_lines)

          collapse(elt.id.substring(0, split));

  }

}

function expandto(href) {

  var start = href.indexOf("#")+1;

  if (start != 0 && start != href.length) {

    if (href.substring(start, href.length) != "-") {

      collapse_all(4);

      pos = href.indexOf(".", start);

      while (pos != -1) {

        var id = href.substring(start, pos);

        expand(id);

        pos = href.indexOf(".", pos+1);

      }

      var id = href.substring(start, href.length);

      expand(id);

      highlight(id);

    }

  }

}

function kill_doclink(id) {

  var parent = document.getElementById(id);

  parent.removeChild(parent.childNodes.item(0));

}

function auto_kill_doclink(ev) {

  if (!ev) var ev = window.event;

  if (!this.contains(ev.toElement)) {

    var parent = document.getElementById(this.parentID);

    parent.removeChild(parent.childNodes.item(0));

  }

}

function doclink(id, name, targets_id) {

  var elt = document.getElementById(id);

  // If we already opened the box, then destroy it.

  // (This case should never occur, but leave it in just in case.)

  if (elt.childNodes.length > 1) {

    elt.removeChild(elt.childNodes.item(0));

  }

  else {

    // The outer box: relative + inline positioning.

    var box1 = document.createElement("div");

    box1.style.position = "relative";

    box1.style.display = "inline";

    box1.style.top = 0;

    box1.style.left = 0;

    // A shadow for fun

    var shadow = document.createElement("div");

    shadow.style.position = "absolute";

    shadow.style.left = "-1.3em";

    shadow.style.top = "-1.3em";

    shadow.style.background = "#404040";

    // The inner box: absolute positioning.

    var box2 = document.createElement("div");

    box2.style.position = "relative";

    box2.style.border = "1px solid #a0a0a0";

    box2.style.left = "-.2em";

    box2.style.top = "-.2em";

    box2.style.background = "white";

    box2.style.padding = ".3em .4em .3em .4em";

    box2.style.fontStyle = "normal";

    box2.onmouseout=auto_kill_doclink;

    box2.parentID = id;

    // Get the targets

    var targets_elt = document.getElementById(targets_id);

    var targets = targets_elt.getAttribute("targets");

    var links = "";

    target_list = targets.split(",");

    for (var i=0; i<target_list.length; i++) {

        var target = target_list[i].split("=");

        links += "<li><a href='" + target[1] + 

               "' style='text-decoration:none'>" +

               target[0] + "</a></li>";

    }

    // Put it all together.

    elt.insertBefore(box1, elt.childNodes.item(0));

    //box1.appendChild(box2);

    box1.appendChild(shadow);

    shadow.appendChild(box2);

    box2.innerHTML =

        "Which <b>"+name+"</b> do you want to see documentation for?" +

        "<ul style='margin-bottom: 0;'>" +

        links + 

        "<li><a href='#' style='text-decoration:none' " +

        "onclick='kill_doclink(\""+id+"\");return false;'>"+

        "<i>None of the above</i></a></li></ul>";

  }

  return false;

}

function get_anchor() {

          var href = location.href;

          var start = href.indexOf("#")+1;

          if ((start != 0) && (start != href.length))

              return href.substring(start, href.length);

      }

function redirect_url(dottedName) {

          // Scan through each element of the "pages" list, and check

          // if "name" matches with any of them.

          for (var i=0; i<pages.length; i++) {

              // Each page has the form "<pagename>-m" or "<pagename>-c";

              // extract the <pagename> portion & compare it to dottedName.

              var pagename = pages[i].substring(0, pages[i].length-2);

              if (pagename == dottedName.substring(0,pagename.length)) {

                  // We've found a page that matches `dottedName`;

                  // construct its URL, using leftover `dottedName`

                  // content to form an anchor.

                  var pagetype = pages[i].charAt(pages[i].length-1);

                  var url = pagename + ((pagetype=="m")?"-module.html":

                                                        "-class.html");

                  if (dottedName.length > pagename.length)

                      url += "#" + dottedName.substring(pagename.length+1,

                                                        dottedName.length);

                  return url;

              }

          }

      }