var currentSimDate;
var currentLanguage;
var selectedLevel;
var selectedCode;
var lineCount;
var footnotes;
var chapterfootnotes;
var innerDate;

function getClient()
{
  var xmlhttp=null;
  try
  {
    xmlhttp = new XMLHttpRequest();
  } catch (e) {}
  if (xmlhttp != null) return xmlhttp;
  
  try {
    xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
  } catch (e) {}
  if (xmlhttp != null) return xmlhttp;
  
  try {
   xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (E) {}
  return xmlhttp;
}

/**
* MEthod called by the including page.
* It is not sure that the level in relation with a code is selecting a node (in case the 
* user typed directly the prefix of a code or if he modified the code)
*/
function selectTaricCode(lang, code, level, simDate, descrLang, selectedCodes,textSearch)
{
  innerDate = simDate;
  resetCounterFootnotes();
  selectedLevel = "";
  selectedCode = ""
  var dateChanged = (currentSimDate == null || simDate != currentSimDate);
  var langChanged = (currentLanguage == null || lang != currentLanguage);
  if (descrLang == null || descrLang == "") descrLang = lang;
  if (dateChanged || langChanged)
  {
    loadSection(lang, simDate);
    chaptertree = null;
    currentSimDate=simDate;
    currentLanguage=lang;
  }
  if (code.length >=2) {
	while (code.length < 10) code += '0';
    var chapterCode = code.substring(0,2)+"00000000";
    if (!isChapterLoaded(chapterCode))
    { 
      var client = getClient();
      client.open("GET", 
        "nomenclaturetree/nomenclaturetree_"+currentLanguage+"_"+currentSimDate+"_"+code.substr(0,2)+"_"+descrLang+".js", 
        false);
      client.send(null);
      eval(client.responseText);
    }
    var codeObj = getCodeObject(chaptertree, code, level);
    // Research the code object matching best the code entered by the user
    while (codeObj == null && code.length >= 2)
    {
      codeObj = getCodeObject(chaptertree, code);
      code = code.substring(0, code.length - 2);
    }
    // If really the code entered by the user does not exist (the first two digits does 
    // not correspond to a chapter number
    if (codeObj == null) updateVisibility(null, null,null,false);
    else {
      selectedLevel = codeObj[1];
      selectedCode = codeObj[2];
      if (level == "-1"){
  		updateVisibility(codeObj[1], codeObj[2], null,true);
  	  } else {
  		  updateVisibility(codeObj[1], codeObj[2],selectedCodes,false);
  	  }
    }
  } else
    updateVisibility(null, null, null,false);
  refreshFootnotesToDisplay();
  highlightOnLoad(textSearch);
}
	
function refreshFootnotesToDisplay()
{
  if(footnotes==null)
	return;
  var spans = document.getElementsByTagName("span");
  if(spans==null)
	return;
  var fn;
  var parent;
  for(var i=0; i<spans.length; i++)
  {
	fn=spans[i];
	if(fn==null)
	  continue;
	if(fn.className != "footnote_link")
	  continue;
	if(fn.parentNode!=null)
	{
	  if(fn.parentNode.style.display == "inline")
		incrementCounterFootnoteId(fn.innerHTML);
	}
  }
   
  var divFN = document.getElementById("div_footnotes");
  if(divFN==null)
	return;
  
  var trList = divFN.getElementsByTagName("tr");
  if(trList==null)
	return;
  var tr;
  var nbDisplay;
  for(var i=0; i<trList.length; i++)
  {
	tr = trList[i];
	if(tr==null)
	  continue;
	
	if(isPageFootnoteToDisplay(tr.id))
	{
	  tr.style.display="block"; 
	}
	else
	{
	  tr.style.display="none";
	}
  }
}

//Return true if the footnote must be displyed.
//For that, the number of the displayed footnote links must be lower than the
//total number of footnote links TO DISPLAY.
function isPageFootnoteToDisplay(footnoteRef)
{
	if(footnoteRef==null)
	  return false;
	if(footnotes==null)
		return false;
	var array;
	for(var i=0; i<footnotes.length; i++)
	{
		array=footnotes[i];
		if(array==null)
		  continue;
		if(array[0]==footnoteRef)
		  return (array[4]>0);
	}
	return false;  
}

function getFootnoteDesc(footnoteRef) {
	if(footnoteRef==null)
	  return "";
	if(footnotes==null)
		return "";
	var array;
	for(var i=0; i<footnotes.length; i++)
	{
		array=footnotes[i];
		if(array==null)
		  continue;
		if(array[0]==footnoteRef)
		  return array[3];
	}
	return "";  
}

function getFootnoteUserDesc(footnoteRef) {
	if(footnoteRef==null)
	  return "";
	if(footnotes==null)
		return "";
	var array;
	for(var i=0; i<footnotes.length; i++)
	{
		array=footnotes[i];
		if(array==null)
		  continue;
		if(array[0]==footnoteRef)
		  return (array[5] != null ? array[5] : "");
	}
	return "";  
}

	  
function loadSection(lang, simDate)
{
  var client = getClient();
  client.open("GET", "nomenclaturetree/nomenclaturetree_"+lang+"_"+simDate+".js", false);
  client.send(null);
  eval(client.responseText);
  currentSimDate = simDate;	
  language = lang;
}

function toggleSection(section)
{
  //Check if section is collapsed or not
  var sectionCollapsed = isSectionCollapsed(section);
  collapseSectionTree();
  collapseChapterTree(chaptertree);
  if (sectionCollapsed) expandSection(section);
  refreshTree();
  enableSectionDiv(true);
}

function isSectionCollapsed(sectionLabel)
{
  for (var i=0; i<sectiontree.length; i++)
  {
    if (sectiontree[i][1] == sectionLabel)
    {
      // check the first child
      if (sectiontree[i][3] !== null 
          && sectiontree[i][3].length > 0
          && sectiontree[i][3][0][0] == "false") return "true"
      else return false;
    }
  }
  return false;
}
function isChapterCollapsed()
{
  for (var i=0; i<chaptertree.length; i++)
  {
    if(chaptertree[i][0] == "true") return false;
  }
  return true;
}

function expandSection(sectionLabel)
{
  for (var i=0; i<sectiontree.length; i++)
  {
    if (sectiontree[i][1] == sectionLabel)
    {
      for (var j=0; j<sectiontree[i][3].length; j++)
      {
        sectiontree[i][3][j][0]="true";
      }
    }
  }
}


function isChapterLoaded(code)
{
  if (chaptertree == null) return false;
  return (chaptertree[0][2] == code);
}

function updateVisibility(level, code, selectedCodes,collapseAll)
{
  var flag = true;
  var isDeleteMode = false;
  
  //process all selected code
  if (selectedCodes != null && selectedCodes!="" && !collapseAll){
	  var selectedCodesArray = selectedCodes.split(",");
	  for (var i = 0; i < selectedCodesArray.length; i++) {
		  
		  var selectedCode = getCodeObject(chaptertree, selectedCodesArray[i]);
		  if (selectedCode != null){
			  var lastSelectedLevel = selectedCode[1];
			  var lastSelectedCode = selectedCode[2]; 
			//check if we are in delete mode (ie : click on already expand node in order to colapsed it)
			  if (code == lastSelectedCode){
				  isDeleteMode = true;
			  } else {
				  if (isChapter(lastSelectedCode)){ 
				    if (isChapterCollapsed()) {
				      updateSectionTreeVisibilityWithoutSiblingChapter(lastSelectedCode);
				      expandChapterTree(chaptertree, "", lastSelectedCode, lastSelectedLevel);
				    }
				  } else {
				    updateSectionTreeVisibilityWithoutSiblingChapter(lastSelectedCode);
				    var isCodeSelected = isSelected(getCodeObject(chaptertree, lastSelectedCode, lastSelectedLevel));
				    if (isCodeSelected) {
				      var parentObj = getParentObject(chaptertree, lastSelectedCode, lastSelectedLevel);
				      expandChapterTree(chaptertree, "", parentObj[2], parentObj[1]);
				    }
				    else {
				      expandChapterTree(chaptertree, "", lastSelectedCode,lastSelectedLevel);
				    }
				  }
			}
		  }
	  }
  }
  //process code only if we are not in deleteMode
  if (!isDeleteMode){
	  if (code == null) //this is section hierarchy with all collapsed sections
	  {
	     // Collapse every element
	     collapseSectionTree();
	     collapseChapterTree(chaptertree);
	  } else if (isChapter(code))
	  {
	    if (isChapterCollapsed() || collapseAll)
	    {
	      updateSectionTreeVisibilityWithoutSiblingChapter(code);
	      expandChapterTree(chaptertree, "", code, level);
	      flag = false;
	    }
	    else 
	    {
	      //TODO : Collapse only the current code
	      updateSectionTreeVisibilityWithSiblingChapters(code);
	      collapseChapterTree(chaptertree);
	    } 
	  } else
	  {
	    updateSectionTreeVisibilityWithoutSiblingChapter(code);
	    var isCodeSelected = isSelected(getCodeObject(chaptertree, code, level));
	    //collapseChapterTree(chaptertree);
	    if (isCodeSelected)
	    {
	      var parentObj = getParentObject(chaptertree, code, level);
	      expandChapterTree(chaptertree, "", parentObj[2], parentObj[1]);
	    }
	    else
	    {
	      expandChapterTree(chaptertree, "", code,level);
	    }
	    flag=false;
	  }
  }
  refreshTree();
  enableSectionDiv(flag);
}
function isSelected(codeObj)
{
	if (codeObj == null) return "false";

  if (codeObj[7] == null || codeObj[7].length==0) return (codeObj[0]=="true");
  return (codeObj[7][0][0] == "true");
}
/**
* Retrieve a code in the list
* level can be null.
*/
function getCodeObject(list, code, level)
{
  if (list == null) return null;
  var res = null;
  for (var i=0; i<list.length;i++)
  {
    var item = list[i];    
    if (((level==null) || (level!=null && parseInt(item[1])==level)) && (item[2].indexOf(code, 0)==0) && item[3]=="80") return item;
    if ((level == null) || (level != null && parseInt(item[1])<level))
    {
      res = getCodeObject(item[7], code, level);
      if (res != null) return res;
    }  
  }
  return res;
}

/**
* Retrieve a range of code from the list
*/
function getCodeRangeObject(list, code, startCode, endCode, codes)
{
	if (list == null) 
		return codes;
	if (codes === undefined)
		var codes = new Array();
	if (codes == null)
		codes = new Array();

	for (var i=0; i<list.length;i++) {
		var item = list[i];
		
		if (item[2] <= endCode) {
		    if (item[2] >= startCode) 
		    	if (code== null || code != item[2])
		    		codes.push(item[2]);
		    getCodeRangeObject(item[7],item[2], startCode, endCode, codes);
		};
	}
	return codes;
}

function getParentObject(list, code, level)
{
  if (list == null) return null;
  var res = null;
  for (var i=0; i<list.length;i++)
  {
    var item = list[i];
    if (isParent(item, code, level)) return item;
    if (item[1]==level) return null;
    res = getParentObject(item[7], code, level);
    if (res != null) return res;
  }
  return res;
}
function isParent(codeObj, code, level)
{
  if (codeObj[7] == null) return false;
  var res=false;
  for (var i=0; i<codeObj[7].length;i++)
  {
    var item = codeObj[7][i];
    if (item[1]==level && item[2]==code) res = true;
  }
  return res;
}

function isChapter(code)
{
  return (code.substr(2) == "00000000");
}

/**
* To be called when the chapterhierarchy is shown
*/
function updateSectionTreeVisibilityWithoutSiblingChapter(code)
{
  var chapterCode = code.substr(0, 2) + "00000000";
  for (var i=0; i<sectiontree.length; i++)
  {
    var sectionSelected = sectionContains(sectiontree[i], chapterCode)
    sectiontree[i][0] = sectionSelected;
    if (sectionSelected == "true")
    {
      for (var j=0;j<sectiontree[i][3].length;j++)
      {
        if (sectiontree[i][3][j][3] == chapterCode)
          sectiontree[i][3][j][0] = "true";
        /*else
          sectiontree[i][3][j][0] = "false";*/
      }
    }
  }
}

/**
* To be called when the sectionhierarchy is shown
*/
function updateSectionTreeVisibilityWithSiblingChapters(code)
{
  var chapterCode = code.substr(0, 2) + "00000000";
  for (var i=0; i<sectiontree.length; i++)
  {
    sectiontree[i][0] = "true";
    if (sectionContains(sectiontree[i], code) == "true")
    {
      for (var j=0; j<sectiontree[i][3].length;j++)
      {
        sectiontree[i][3][j][0]="true";
      }
    }
  }
}

function collapseSectionTree()
{
  for (var i=0; i<sectiontree.length; i++)
  {
    sectiontree[i][0] = "true";
    for (var j=0; j<sectiontree[i][3].length;j++)
    {
      sectiontree[i][3][j][0]="false";
    }
  }
}

function sectionContains(sectionObj, code)
{
    var chapters = sectionObj[3];
    if (chapters == null) return "false";
    for (var i=0; i<chapters.length; i++)
    {
      if (chapters[i][3]==code) return "true";
    }
    return "false";
}

function collapseChapterTree(list)
{
  if (list == null) return;
  for (var i=0; i<list.length; i++)
  {
    var item = list[i];
    item[0]="false";
    collapseChapterTree(item[7]);
  }
}

function expandChapterTree(list, path, code, level)
{
  if (list == null) return;
  for (var i=0; i<list.length; i++)
  {
    var item = list[i];
    if (level == item[1] && code == item[2])
    {
      // set this node as visible
      item[0]="true";
      // set all ancestors of this node as visible
      setAncestorVisible(chaptertree, path);
      // set all sibling (after chapter level) of the ancestor visible
      setSiblingsVisible(chaptertree[0][7]); 
      // set all direct children of this node as visible
      var children = item[7];
      if (children != null)
      {
        for (var j=0; j<children.length;j++)
        {
          var child = children[j];
          child[0]="true";
          collapseChapterTree(child[7]);
        }
      }
    } else
    {
      expandChapterTree(item[7], path+i+"-",code, level);
    }
  }
}

function setAncestorVisible(list, path)
{
  var currentList = chaptertree;
  var matches = path.match(/(\d+)-/g);
  if (matches == null) return; // If the node is a root node
  for (var i = 0; i < matches.length; i++)
  {
    var idx = matches[i].substr(0,matches[i].length - 1);
    var item = currentList[idx];
    item[0]="true";
    currentList = item[7];
  }
}
/**
* Make the sibling of every visible node of the list visible
*/
function setSiblingsVisible(list)
{
  if (list == null) return;
  var visible = false;
  for (var i=0; i< list.length; i++)
  {
    var visibleObj = (list[i][0] == "true");
    if (visibleObj) setSiblingsVisible(list[i][7]);
    visible = (visible || visibleObj);
  }
  if (visible)
    for (var i=0; i< list.length; i++)
      list[i][0]="true";
}

//increment the counter for each displayed footnote link.
function incrementCounterFootnoteId(footnoteId)
{ 
  if(footnotes==null)
	return;
  var array;
  for(var i=0; i<footnotes.length; i++)
  {
    array=footnotes[i];
    if("("+array[1]+array[2]+")"==footnoteId)
    {
      var nb = array[4];
      nb = nb+1;
      array[4]=nb;
    }
  }	
}

/**
* Methods generating HTML
*/

var divContent = "";
var divSection = null;
var divCollapseButton = null;
var divChapter = null;
var divLeaf = null;
var divExpanded = null;
var divCollapsed = null;
var divErnCode = null;

function refreshTree()
{
  removeGeneratedHTML();
  // First check if every chapter node is collapse
  if (areAllChaptersCollapsed())
  {
    showSectionHierarchy();
    refreshFootnotes(chapterfootnotes);
    return;
  }  
  var sect = document.getElementById("chapterhierarchy");
  divContent = sect.innerHTML;
  initialiseDivToBeCopied();
  refresh_headers();
  refreshChapterTree(chaptertree, footnotes);
  sect.innerHTML = divContent;  
  
}

function initialiseDivToBeCopied()
{
  if (divLeaf == null) 
  {
    var temp = divContent.replace(/[\n\r\f]/g, ' ');
    divs = temp.split(/<\/div>/i);
    for (var i = 0 ; i < divs.length; i++)
    {
      divs[i] += "</div>";
      if (divSection == null) 
        divSection = divs[i].match(/<div.*id=.?section.*<\/div>/i);
      if (divCollapseButton == null) 
    	  divCollapseButton = divs[i].match(/<div.*id=.?collapseButton.*<\/div>/i);
      if (divChapter == null) 
        divChapter = divs[i].match(/<div.*id=.?chapter.*<\/div>/i);
      if (divLeaf == null) 
        divLeaf = divs[i].match(/<div.*id=.?to_be_copied_leaf.*<\/div>/i);
      if (divExpanded == null)
        divExpanded = divs[i].match(/<div.*id=.?to_be_copied_expanded.*<\/div>/i);
      if (divCollapsed == null)
        divCollapsed = divs[i].match(/<div.*id=.?to_be_copied_collapsed.*<\/div>/i);
      if (divErnCode == null)
    	  divErnCode = divs[i].match(/<div.*id=.?to_be_copied_ernCode.*<\/div>/i);
    }
    divSection = divSection[0];
    divChapter = divChapter[0];
    if (divCollapseButton != null){
    	divCollapseButton = divCollapseButton[0];
    }
    divLeaf = divLeaf[0];
    divExpanded = divExpanded[0];
    divCollapsed = divCollapsed[0];
    divErnCode = divErnCode[0];
  }
}

/** 
* Make the section div visible or not
*/
function enableSectionDiv(flag)
{
  if (flag)
  {
    var x=document.getElementById("chapterhierarchy");
    x.style.cssText = "visibility:hidden";
    var x=document.getElementById("sectionhierarchy");
    x.style.cssText = "visibility:visible";
  }
  else
  {
    var x=document.getElementById("chapterhierarchy");
    x.style.cssText = "visibility:visible";
    var x=document.getElementById("sectionhierarchy");
    x.style.cssText = "visibility:hidden";
  }
}

/** 
* Remove all generated DHTML data
*/
function removeGeneratedHTML()
{
  lineCount = 0;
  x=document.getElementById("chapterhierarchy");
  var cont = true;
  while (cont)
  {
    cont = false;
    var list = x.childNodes;
    for (var i=0; i<list.length;i++)
    {
      if (list[i].id != "chapter" && list[i].id != "section" && list[i].id != "collapseButton" && (list[i].id != null && list[i].id.indexOf("to_be_copied") != 0))
      {
        x.removeChild(list[i]);
        cont=true;
      }
    }
  }
  x=document.getElementById("sectionhierarchy");
  cont = true;
  while (cont)
  {
    cont = false;
    var list = x.childNodes;
    for (var i=0; i<list.length;i++)
    {
      if (list[i].id != "chapter_header" && list[i].id != "section_header")
      {
        x.removeChild(list[i]);
        cont=true;
      }
    }
  }
  
}

/**
* Update the sectionhierarchy DIV. Display the DHTML for the visible section and chapter hierarchy.
*/
function showSectionHierarchy()
{
  for (var i=0; i<sectiontree.length; i++)
  {
    if (sectiontree[i][0]=="true") // if the node is visible
    {
      addSectionNode(sectiontree[i]); // print the node
      for (var j=0; j<sectiontree[i][3].length; j++) // print the chapters of the visible section
      {
        if (sectiontree[i][3][j][0]=="true") // if the node is visible
        {
          addChapterNode(sectiontree[i][3][j]); // print the node
        }
      }
    }
  }
  var sectionDiv = document.getElementById("sectionhierarchy");
  sectionDiv.innerHTML = sectionDiv.innerHTML + ""; // to enable the DOM events under IE
}

/**
* Update the sectionhierarchy DIV. Add a visible section heading
*/
function addSectionNode(sectionNode)
{
  var sectionDiv = document.getElementById("sectionhierarchy");
  var copy = document.getElementById("section_header").cloneNode(true);
  copy.removeAttribute("style");// remove invisible style
  var regexp = /\S+$/;
  var id = sectionNode[1].match(regexp);
  replacePlaceholders(copy, "", id, "", sectionNode[1], sectionNode[2]);
  sectionDiv.appendChild(copy);
}


/**
* Update the sectionhierarchy DIV. Add a visible chapter heading
*/
function addChapterNode(chapterNode)
{
  var sectionDiv = document.getElementById("sectionhierarchy");
  var copy = document.getElementById("chapter_header").cloneNode(true);
  replacePlaceholders(copy, "0", chapterNode[3], "", chapterNode[1], chapterNode[2]);
  copy.removeAttribute("style");// remove invisible style
  //add footnotes
  copy.innerHTML = addFootnoteToNode(chapterNode[4], copy.innerHTML);  
  
  sectionDiv.appendChild(copy);
}

function refreshChapterTree(nodelist, footnotes)
{
  refreshFootnotes(footnotes);
  if (nodelist == null)return;
  for (var i=0; i<nodelist.length; i++)
  {
    if (nodelist[i][0]=="true") // if the node is visible
    {
      if (nodelist[i][1] != "0") addNode(nodelist[i]); // print the node (but not the chapter one)
      refreshChapterTree(nodelist[i][7], null);// print the children
    }
  }
}

/**
* Refresh the footnoe list just below the browser
*/
function refreshFootnotes(currentfootnotes)
{
	if(currentfootnotes==null){
		return;
	}
	var footnoteTable = document.getElementById("table_footnotes");
	removeFootnotes(footnoteTable);

	if(footnoteTable == null)
		return;
	footnoteTable.style.display = "block";
 	
	var tab = null;
	for (var i=0; i<currentfootnotes.length; i++)
  {
 		tab = currentfootnotes[i];
 		footnoteTable.insertRow(i);

 		if(tab==null)
 			continue;
 		var fnRefModel = document.getElementById("footnote_reference_list_model");
 		var fnDescModel = document.getElementById("footnote_description_list_model");
 		var newFootnoteRef = fnRefModel.cloneNode(true);
 		var newFootnoteDesc = fnDescModel.cloneNode(true);
 		
 		 		newFootnoteRef.innerHTML = 
 		   		newFootnoteRef.innerHTML.replace(/\$footnote_number\$/g,tab[1]+tab[2]); 
 		newFootnoteDesc.innerHTML = 
 		   		newFootnoteDesc.innerHTML.replace(/\$description\$/g,tab[3]); 
 	footnoteTable.rows[i].id=tab[0];
 	if (footnotes == null && chapterfootnotes!=null){
 		footnoteTable.rows[i].style.display="block";
 	} else {
 		footnoteTable.rows[i].style.display="none";
 	}
 	
    footnoteTable.rows[i].insertCell(0);
    footnoteTable.rows[i].insertCell(1);
    footnoteTable.rows[i].insertCell(2);
		footnoteTable.rows[i].cells[0].id = "#footnote_"+tab[0];	
		footnoteTable.rows[i].cells[0].vAlign="top";
 		footnoteTable.rows[i].cells[0].innerHTML = newFootnoteRef.innerHTML;
    footnoteTable.rows[i].cells[1].innerHTML = "&nbsp;";
    footnoteTable.rows[i].cells[1].vAlign="top";
    footnoteTable.rows[i].cells[2].vAlign="top";
    footnoteTable.rows[i].cells[2].innerHTML = newFootnoteDesc.innerHTML;  
   
  }
}

//Reset the counter of each footnote.
function resetCounterFootnotes()
{
  if(footnotes==null)
	return;
  var array;
  for(var i=0; i<footnotes.length; i++)
  {
	array=footnotes[i];
	array[4]=0;
  }
}

function removeFootnotes(footnoteTable)
{
	if (footnoteTable == null) return;
	
	while(footnoteTable.rows.length>0)
	{
		footnoteTable.deleteRow(0);
	}
}

/**
* Update the chapterhierarchy DIV. Display the section and chapter inforamtion
*/
function refresh_headers()
{
  for (var i=0; i<sectiontree.length; i++)
  {
    if (sectiontree[i][0] == "true")
    {
      
      var copy = divSection;
      copy = copy.replace(/visibility:\s*hidden/i, "visibility: visible");
      copy = copy.replace(/id\s*=\s*\S+/i, ""); // Delete the id
      copy = copy.replace(/sid/, "id"); // move sid attribute to id
      copy = replace(copy, "", sectiontree[i][1].substring(sectiontree[i][1].indexOf(' ')+1), "", sectiontree[i][1], 
             sectiontree[i][2]);
      divContent += copy;

      for (var j=0; j<sectiontree[i][3].length;j++)
      {
        if (sectiontree[i][3][j][0] == "true")
        {
          copy = divChapter;
          copy = copy.replace(/visibility:\s*hidden/i, "visibility: visible");
          copy = copy.replace(/id\s*=\s*\S+/i, ""); // Delete the id
          copy = copy.replace(/sid/, "id"); // move sid attribute to id
          copy = replace(copy, "0", sectiontree[i][3][j][3], "", sectiontree[i][3][j][1], sectiontree[i][3][j][2]);
          
          copy = addFootnoteToNode(sectiontree[i][3][j][4], copy);
          divContent += copy;
          
          //display collapse button if needed
          if (divCollapseButton != null){
	          var copyCollapse = divCollapseButton;
	          copyCollapse = copyCollapse.replace(/visibility:\s*hidden/i, "visibility: visible");
	          copyCollapse = copyCollapse.replace(/id\s*=\s*\S+/i, ""); // Delete the id
	          copyCollapse = copyCollapse.replace(/sid/, "id"); // move sid attribute to id
	          copyCollapse = replace(copyCollapse, "0", sectiontree[i][3][j][3], "", sectiontree[i][3][j][1], sectiontree[i][3][j][2]);
	          divContent += copyCollapse;
          }
          break;
        }
      }
      break;
    }
  }
}


function addNode(node)
{
  lineCount++;
  var copy = null;
  if (node[7] == null || node[7].length==0) copy = divLeaf;
  else if (node[7][0][0] == "true") copy = divExpanded;
  else copy = divCollapsed;
  var clazz = "evenLine ";
  if (selectedCode == node[2] && selectedLevel == node[1])
  {
    clazz = "selectedNode " + clazz;
  }
  parentObj = getParentObject(chaptertree, node[2], node[1]);

  copy = copy.replace(/visibility:\s*hidden/i, "visibility: visible");
  copy = copy.replace(/id\s*=\s*\S+/i, ""); // Delete the id
  copy = copy.replace(/sid/, "id"); // move sid attribute to id
  copy = replace(copy, node[1], node[2], getIndents(node), null, node[5], (node[7]==null)?"true":"false", (node[3]=="80")?trim(node[2]):"", 
             getCodeLevel(node[2]), clazz, parentObj[2], parentObj[1]);
  
  copy = addFootnoteToNode(node[6], copy);

  divContent += copy;
  /* add ern Info if needed */
  var ernCopy = null;
  var ernNode = null;
  if (node[12] != null && node[12].length>0) {
	  for (var i = 0 ; i < node[12].length; i++){
		  ernNode = node[12][i];
		  if (ernNode !=null){
			  ernCopy = divErnCode;
			  ernCopy = ernCopy.replace(/visibility:\s*hidden/i, "visibility: visible");
			  ernCopy = ernCopy.replace(/id\s*=\s*\S+/i, ""); // Delete the id
			  ernCopy = ernCopy.replace(/sid/, "id"); // move sid attribute to id
			  ernCopy = ernReplace(ernCopy, ernNode[0], getErnIndents(ernNode), ernNode[2], ernNode[3], ernNode[4]);
			  
			  ernCopy = addFootnoteToNode(ernNode[5], ernCopy);
			  divContent += ernCopy;
		  }
	  }
	 
  }
  
}

function addFootnoteToNode(node, copy)
{
	
	if(node == null || node.length <= 0)
	{
	  if(copy!=null)
		copy = copy.replace(/\$footnotes\$/g,"");
	  return copy;	
	}
	 
 	var fnModel = document.getElementById("footnote_parenthesis_model");
	if(fnModel==null)
	{
	  copy = copy.replace(/\$footnotes\$/g,"");
	  return copy;
	}
	var fnNode = null;
	var footnoteString = "";
	for (var i = 0 ; i < node.length; i++)
   {
   	fnNode = node[i];
   	var footnote = fnModel.cloneNode(true);
   	
   	footnoteString += " "+ footnote.innerHTML.replace(/\$footnote_number\$/g,fnNode[1]+fnNode[2]);
   	footnoteString = footnoteString.replace(/\$footnote_ref\$/g,fnNode[1]+fnNode[2]);
   }
   copy = copy.replace(/display:\s*none/gi, "display: inline");
   copy = copy.replace(/\$footnotes\$/g,footnoteString);
	
 	return copy;
}

/**
 * Parse the node (attributes and children recursively) and replace all occurrence of a placeholder ($level$, 
 * $code$, $indent$, $label$, $description$, $isLeaf$, $trimedCode$, $codeLevel$, $class$, $parentCode$, 
 * $parentLevel$) by 
 * their value in parameters. If present, the sid attribute replaces the id attribute.
 * Trimed code is the taric code where additional spaces have been added after the fourth, sixth and eighth digit.
 * codeLevel is the number of significant digits in the code.
 */
function replacePlaceholders(node, level, code, indent, label, description, isLeaf, trimedCode, codeLevel, clazz, 
         parentCode, parentLevel)
{
  if (node == null) return;
  switch(node.nodeType)
  {
    case 1: // Element
      var idAttr = node.getAttributeNode('id');
      var sidAttr = node.getAttributeNode('sid');
      if (sidAttr != null)
      {
        if (idAttr != null) node.removeAttributeNode(idAttr);
        node.setAttribute("id", sidAttr.nodeValue);
        node.removeAttributeNode(sidAttr);
      }
      var children = node.childNodes;
      for (var i=0; i<children.length; i++)
      {
        replacePlaceholders(children[i], level, code, indent, label, description, isLeaf, trimedCode, codeLevel, clazz, 
           parentCode, parentLevel);
      }
      children = node.attributes;
      for (var i=0; i<children.length; i++)
      {
        replacePlaceholders(children[i], level, code, indent, label, description, isLeaf, trimedCode, codeLevel, clazz,
            parentCode, parentLevel);
      }
      break;
    case 2: // Attribute
    case 3: // Text
      var nodeVal = node.nodeValue;
      if (nodeVal != null && nodeVal != "") // IE 6 !
        node.nodeValue = 
          replace(nodeVal, level, code, indent, label, description, isLeaf, trimedCode, codeLevel, clazz, parentCode,
              parentLevel);
    break;
    case 8: // Comment
      break; // ignore
    case 9: // Document
      replacePlaceholders(node.childNodes[0], level, code, indent, label, description, isLeaf, trimedCode, codeLevel, 
        clazz, parentCode, parentLevel);
  } 
}
function replace(str, level, code, indent, label, description, isLeaf, trimedCode, codeLevel, clazz, parentCode, parentLevel, descrTranslation)
{
//  alert(str + " " + level + " " + code + " " + indent + " " + label + " " + isLeaf + " "
//  + trimedCode + " " + codeLevel);
  if (str == null || str == "") return str;
  var res = str;
  try
  {
    res = res.replace(/\$level\$/g,level);
    res = res.replace(/\$code\$/g, code);
    res = res.replace(/\$parentLevel\$/g,parentLevel);
    res = res.replace(/\$parentCode\$/g, parentCode);
    res = res.replace(/\$indent\$/g, indent);
    res = res.replace(/\$label\$/g, label);
    res = res.replace(/\$description\$/g, description);
    res = res.replace(/\$isLeaf\$/g, isLeaf);
    res = res.replace(/\$trimedCode\$/g, trimedCode);
    res = res.replace(/\$codeLevel\$/g, codeLevel);
    res = res.replace(/\$class\$/g, clazz);
    if (descrTranslation == null) res = res.replace(/\$translation\$/g, "");
    else  res = res.replace(/\$translation\$/g, descrTranslation);
  }catch (e){}// IE does not react ok when the string only contains an integer...
  return res;
}

function ernReplace(str, ernCode, ernIndent, ernProdLine, ernDesc,ernDescrTranslation)
{
  if (str == null || str == "") return str;
  var res = str;
  try {
    if (ernProdLine == "80"){
    	res = res.replace(/\$ernCode\$/g, ernCode);
    } else {
    	res = res.replace(/\$ernCode\$/g, "");
    }
    res = res.replace(/\$ernIndent\$/g,ernIndent);
    res = res.replace(/\$ernProdLine\$/g, ernProdLine);
    res = res.replace(/\$ernDesc\$/g, ernDesc);
    if (ernDescrTranslation == null) res = res.replace(/\$ernTranslation\$/g, "");
    else  res = res.replace(/\$ernTranslation\$/g, ernDescrTranslation);
  } catch (e){}// IE does not react ok when the string only contains an integer...
  return res;
}

/**
* Remove the trailing pairs of 0 of a code
*/
function trim(code)
{
  res = code;
  while (res.substr(res.length-2) == "00") res = res.substr(0, res.length-2);
  if (res.length > 8) res = res.substring(0,8)+" " + res.substr(8);
  if (res.length > 6) res = res.substring(0,6)+" " + res.substr(6);
  if (res.length > 4) res = res.substring(0,4)+" " + res.substr(4);
  return res;
}
function getIndents(node)
{
  var res = "";
  for (var i=0; i<node[4];i++) res += "-&nbsp;&nbsp;";
  return res;
}

function getErnIndents(ernNode)
{
  var res = "";
  for (var i=0; i<ernNode[1];i++) res += "-&nbsp;&nbsp;";
  return res;
}
/**
 * Return the significant digits of the specified code
 */
function getCodeLevel(code)
{
  var res = 2;
  for (var i= res; i<code.length;i++)
  {
    if (code.charAt(i) !='0') res = i+1;
  }
  return ((res % 2) == 0)?res:res+1;
}

function areAllChaptersCollapsed()
{
  if (chaptertree == null) return true;
  for (var i=0; i<chaptertree.length; i++)
  {
    if (chaptertree[i][0] == "true") return false;
  }
  return true;
}

/**
* DOM facilitating methods
*/
function getChildElement(elem, childname)
{
  var children = elem.childNodes;
  for (var i=0; i<children.length;i++)
  {
    if (childname.toUpperCase() == children[i].nodeName.toUpperCase()) return children[i];
  }
  return null;
}

function setAttribute(elem, attrName, attrValue)
{
  // This trick is used because of IE6 that does not implement method getAttribtue, hasAttribute, setATtributes...
 /* if (elem.hasAttribute(attrName)) 
  {
    alert("has attribute");
    elem.removeAttribute(attrName);
  }
  elem.setAttribute(attrName, attrValue);*/

  if (attrName == "style") attrName = "style.cssText";
  eval("elem."+attrName+"=\""+attrValue+"\";");
}

function toString(node)
{
  var res = "";
  if (node == null) return res;
  switch(node.nodeType)
  {
    case 1: // Element
      res += "<" + node.nodeName;
      
      for (var i = 0; i < node.attributes.length; i++)
      {
        if (node.attributes.item(i).nodeValue != null) 
          res += " " + node.attributes.item(i).nodeName + "=" + node.attributes.item(i).nodeValue;
//        res += " ";
//        res += toString(node.attributes.item(i));
      }
      res += ">";
      res += node.innerHTML;
      res += "</" + node.nodeName + ">";
      break;
    case 2: // Attribute
      if (node.nodeValue != null) res += node.nodeName + "=" + node.nodeValue;
      break;
    case 3: // Text
      res += node.nodeValue;
      break;
    case 8: // Comment
    case 9: // Document
  }
  return res;
}

function nomenclatureBrowserClick(taricCode, anchor, level, expand, callbackUri)
{
  var url = callbackUri + "?Lang="+currentLanguage.toLowerCase();
  if(taricCode!=null)
    url += "&Taric="+taricCode;
  if(expand==true)
    url += "&Expand=true";
 
  var area = selectCountry();
  if(area!=null)
    url+= "&Area="+area;
  if(level!=null)
    url+= "&Level="+level;
  if(innerDate!=null)
    url+="&SimDate="+innerDate;
    
  if (document.getElementById("goods_radio").checked) 
    url+="&GoodsText="+document.getElementById("textSearch").value;
  else 
    url+="&MeasText="+document.getElementById("textSearch").value;
  url+="&OrderNum="+document.getElementById("OrderNum").value;
  var date = validateDateFormat(document.getElementById("measStartDat").value);
  if(date!=null)
      document.taric_form.StartPub.value = formatDateParam(date);
    else
      document.taric_form.StartPub.value = "";
  url+="&StartPub="+document.taric_form.StartPub.value;
  var date = validateDateFormat(document.getElementById("measEndDat").value);
    if(date!=null)
      document.taric_form.EndPub.value = formatDateParam(date);
    else
      document.taric_form.EndPub.value = "";
  url+="&EndPub="+document.taric_form.EndPub.value;
  url+="&Regulation="+document.getElementById("regulation").value;
  var measTyp = selectMeasType();
  if (measTyp!=null && measTyp.length>0)
  {
    url+="&MeasType="+measTyp;
  }
  
  //TODO retrieve the current selected code
  url+="&LastSelectedCode="+getRecSelectedCodes()

  if(anchor!=null)
    url+=anchor;
  
  
  window.location.href = url;
}

function getRecSelectedCodes(){
	var selectedCodes=new Array();
	if (chaptertree!= null){
		for (var i=0; i<chaptertree[0][7].length; i++) {
			selectedCodes = recursiveSearchSelectedCodes(chaptertree[0][7][i],selectedCodes);
		}
	}
	return selectedCodes;
}

function recursiveSearchSelectedCodes(source, dest){
	var selectedCodes=dest;
	if (source[7]!=null){
		for (var index=0;index<source[7].length;index++){
			if (source[7][index][0] == "true"){
				var code =  source[2];
				if (!arrayContains(selectedCodes,code)){
					selectedCodes.push(code);
				}
				selectedCodes = recursiveSearchSelectedCodes(source[7][index],selectedCodes);
			}
		}
	}
	return selectedCodes;
}

function arrayContains(searchArray, valueToCompare) {
    for (var i = 0; i < searchArray.length; i++) {
        if (searchArray[i] === valueToCompare) {
            return true;
        }
    }
    return false;
}