function InitFoldNavi() {
　FoldNavigation('entry' ,'on' ,false); // entry
　FoldNavigation('comment' ,'on' ,false); // comment
  FoldNavigation('tb' ,'on' ,false); // trackback
  FoldNavigation('search','off',false); // search
  FoldNavigation('category','on',false); // category
  FoldNavigation('archive' ,'off',false); // archive
  FoldNavigation('link' ,'on' ,false); // link
  FoldNavigation('thistb' ,'on' ,false); // this tb
  FoldNavigation('welcome' ,'on' ,false); // welcome
}
function FoldNavigation(idName,initMode,viewNum) {
  var openMark = '＋'; // open mark
  var closeMark = '－'; // close mark
  var preMark = true; // position of mark
  var idTitle = Array(idName,'name').join('');
  var idList = Array(idName,'list').join('');
  var objTitle = this.document.getElementById(idTitle);
  var objLists = this.document.getElementById(idList);
  if (!objTitle || !objLists) return;
  var dispMode = objLists.style.display;
  if (!dispMode) {
    var tmpText = Array('FoldNavigation(',"'",idName,"','chng','');return(false);").join('');
    var insMark = new Array();
    var insText = new Array();
    insMark[insMark.length] = Array('<a class="foldmark" href="#" onclick="',tmpText,'" onkeypress="',tmpText,'">').join('');
    insMark[insMark.length] = (initMode == 'off') ? openMark : closeMark;
    insMark[insMark.length] = '</a>';
    if (preMark) insText[insText.length] = insMark.join('');
    // insText[insText.length] = objTitle.innerHTML;
    if (viewNum) {
      var objItems;
  var href;
  var commentCounter = 0;
  objItems = objLists.getElementsByTagName('a');
  if (idName == 'comment') {
    for (i = 0; i < objItems.length; i++) {
      href = objItems[i].getAttribute("href");
      if(href.indexOf("#") == -1){
        commentCounter++;
      }
    }
  }
  var counter;
  if (idName == "link") {
    counter = objItems.length - 3;
  } else {
    counter = objItems.length - commentCounter;
  }
  insText[insText.length] = '&nbsp;&nbsp;' + Array(' <span>',counter,'</span>').join('') + ' ' +　objTitle.innerHTML;
} else {
  insText[insText.length] = '&nbsp;&nbsp;' + objTitle.innerHTML; 
    }
    if (!preMark) insText[insText.length] = insMark.join('');
    objLists.style.display = (initMode == 'off') ? 'none' : 'block';
    objTitle.innerHTML = insText.join('');
  } else if (initMode == 'chng') {
    var objMarks = objTitle.getElementsByTagName('a');
    for (i=0;i<objMarks.length;i++) {
      if (objMarks[i].className == 'foldmark') {
        objMarks[i].firstChild.nodeValue = (dispMode == 'none') ? closeMark : openMark;
      }
    }
    objLists.style.display = (dispMode == 'none') ? 'block' : 'none';
  }
}
InitFoldNavi();