/**
* Library to be used when a page is called by the overlay mechanism
* Show panel must be called by the source page to invoke the overlay page
* The source page must implement the functions 
* o beforeOverlay (typically to hide the division of the source page), is called before 
*   any action is taken to load the overlay panel.
* o onOverlayLoad (typically to generate dynamic html on the overlay page), is called
*   when the overlay source has been loaded and panel is set visible.
* o afterOverlay (typically to show the division of the source page), is called when 
*   the user leaves the overlay panel and the source panel is back visible.
* The target page must call codeSelected() when done
*/

var callback;
var afterCall;

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;
}

/**
* Open a new panel to the given page.
* @param target : the page to be loaded 
*/
function showPanel(target, funct, after, errDivName)
{
  beforeOverlay();
  callback = funct;
  afterCall = after;
//  var client = new XMLHttpRequest();
  var client = getClient();
  client.open("GET", target, true);
  client.onreadystatechange = function() {
	 if(client.readyState == 4) {
	 	if (client.status != 999) 
	 	showPanelContent(client.responseText);
	 	else {
	 		 alert(client.responseText);
	 	 var errDesc = document.getElementById(errDivName);
	 	 if (errDesc != null)
	 	   errDesc.innerHTML = client.responseText;
	 	 if (afterCall != null) afterCall();
	    }
	 }
	 
  }
  //Note: Firefox does not have the "client.send()" function signature required by the standard, hence the following:
  client.send(null);
}
function showPanelContent(content){
  var panel = document.getElementById("overlayPanel");
  if (panel == null) throw new Exception("A div named overlayPanel must exist in the source page");
  //we need to restore the height since we may have collapsed it previously (see the codeSelected function)
  panel.innerHTML =  content;
  var style = panel.style.cssText;
  style = style.replace(/display:\s*none/i, "display: block");
  panel.style.cssText = style;
  if (afterCall != null) afterCall();
 } 
  
function highlightOnLoad(searchItem,activateFilter) 
{
  var tagsArray = new Array();
  if(searchItem == null) 
	  searchItem = "";

   
  // If trim.length == 0
  if(searchItem.replace(/ /gi,"").length<=0)
    return;

  tagsArray.push("td");
  tagsArray.push("span");
  highlightArray(searchItem, tagsArray,activateFilter);
}

function highlightArray(searchedStr, tagsArray, activateFilter) 
{
	if (activateFilter==null) activateFilter = false;
	if(searchedStr == null || searchedStr.length<=0)
		return;
	if(tagsArray==null)
		return;
	
	// "or" and "and" are terms delimiters
	var splitter =new RegExp(" or | and ","ig");
	var searchTerms = searchedStr.split(splitter);

  // If exact String (between "...") taken the exact string only
  if(searchedStr.charAt(0)=='"' && searchedStr.charAt(searchedStr.length-1)=='"')
  {
    searchTerms = new Array();
    searchedStr = searchedStr.substring(1,searchedStr.length-1);
    searchTerms.push(searchedStr);
  }
  
   // table of terms trimed
  var i=0;
  for (i=0; i<searchTerms.length; i++) 
  {
    searchTerms[i] = trimStr(searchTerms[i]).toUpperCase();
  }
  // Reverse order in order to highlight juices and juice
  searchTerms = searchTerms.sort();
  searchTerms = searchTerms.reverse();
  
  var tagIndex=0;
  for (tagIndex=0; tagIndex<tagsArray.length; tagIndex++) 
  {
    if(tagsArray[tagIndex] == null || tagsArray[tagIndex].length<=0)
      continue;
      
    var descriptions = document.getElementsByTagName(tagsArray[tagIndex]);
    if(descriptions==null || descriptions.length<=0)
    {
      continue;
    }
    var descr=0;
    for (descr=0; descr<descriptions.length; descr++) 
    {
      if(descriptions[descr].className == null || descriptions[descr].className.indexOf("to_highlight")<0)
        continue;
      var d = 0;
      for (d=0; d<searchTerms.length; d++) 
      {
    	cleanSearchTerm = searchTerms[d].replace(/[_%]/g, '');
        if(descriptions[descr].innerHTML.toLowerCase().indexOf(cleanSearchTerm.toLowerCase())<0){	
    		currentNode  = descriptions[descr].parentNode.parentNode.parentNode.parentNode;
    		if  (currentNode.className != null &&
    				(currentNode.className.indexOf("section")>=0 || 
    				currentNode.className.indexOf("chapter")>=0)){
    			if (activateFilter){
    				currentNode.style.display = 'none';
    			} else if (currentNode.id != "section" && currentNode.id != "chapter"){
    				currentNode.style.display = 'block';
    			}
    		} else {
    			currentNode2 = currentNode.parentNode.parentNode.parentNode.parentNode;
    			if  (currentNode2.className != null &&
        				currentNode2.className.indexOf("nomenclaturecode")>=0) {
    				if (activateFilter){
    					currentNode2.style.display = 'none';
        			} else if (currentNode2.id.indexOf("to_be_copied")<0){
        				currentNode2.style.display = 'block';
        			}
    			}
    		}
            continue;
        }
        descriptions[descr].innerHTML = 
          highlight(descriptions[descr].innerHTML, 
        		  cleanSearchTerm.toUpperCase().replace(" ", "( |&nbsp;)"), cleanSearchTerm);
          // pattern search for specific cases like "10&nbsp;kg" "12&nbsp;%" ...
      }
    }
  }
}  
  
  function highlight(text, regStr, originalString) {
	if (text==undefined || text == null) return;

    var toProcess = text;
    var reg = new RegExp(regStr,"gi");

	var splitDescr = toProcess.split(reg);
	var matches = toProcess.match(reg);

	var finalString = "";
	for (var idxSplit = 0; idxSplit < splitDescr.length; idxSplit++) {
		finalString += splitDescr[idxSplit];
		if (idxSplit < matches.length)
			finalString += "<span class=\"highlight\">"+matches[idxSplit]+"</span>";
	}

	return finalString;
  }


/**
* Function called by the overlay page when values have been selected. In addition to call the callback set by
* the calling page with the parameters, this method hide the overlay panel and reset the scrolling information.
* @param v may be a string or an array of object.
*/
function codeSelected(v){
    callback(v);
	//if we had scrolled the overlay, we need to reposition the viewport, or else the main panel will reappear 
	//with the same scrolling
	//if the overlayPanel caused a scrollbar to appear or expand, it will not be restored to its correct state 
	// unless we collapse the overlayPanel (simply hiding the overlayPanel is not sufficient)
	hideOverlayPanel();
	afterOverlay(); 
}

function hideOverlayPanel(){
  var panel = document.getElementById("overlayPanel");
    var style = panel.style.cssText;
    style = style.replace(/display:\s*block/i, "display: none");
    panel.style.cssText = style;
	panel.innerHTML="";
}

function trimStr (myString) 
{ 
var str = myString.replace(/^\s+/g,'').replace(/\s+$/g,'');
str = str.replace(/^\'/g,'').replace(/\'$/g,'');

return str;
} 


function prepareCalendarPanel(dateStr, language)
{
  var url = "calendar/calendar.jsp";
  if(language != null)
    url += "?Lang="+language;

   var connectCallback = {
	success: function(o) {
		var msg = "OK : status = " + o.status + "\nstatusText = " + o.statusText + " \nresponse = " + o.responseText;
		calendarPanel.body.innerHTML =  o.responseText;
	},
	failure: function(o) {
		var msg = "NOK : status = " + o.status + "\nstatusText = " + o.statusText + " \nresponse = " + o.responseText;
	},
	cache:false
  }

  var transaction =	YAHOO.util.Connect.asyncRequest('GET', url, connectCallback, null)
	transaction.conn.onreadystatechange = function() {
	 if(transaction.conn.readyState == 4) {
	 	calendarPanel.setHeader("");
	 	calendarPanel.setBody(transaction);	
		calendarPanel.render();
	 }
  };
}


function showTaricConsultationCalendar(dateStr, dateParameterName, language, event, keepParam)
{
  overlayTarConsultPanelClicked=true;
  showCalendarModalPanel(dateStr, dateParameterName, language, event, keepParam);
}

function showRegulationSearchCalendarModalPanel(dateStr, dateParameterName, language, event, keepParam)
{
  overlayRegulationSearchConsultPanelClicked=true;
  showCalendarModalPanel(dateStr, dateParameterName, language, event, keepParam);
}


function showGeoSearchCalendarModalPanel(dateStr, dateParameterName, language, event, keepParam)
{
  overlayGeoSearchConsultPanelClicked=true;
  showCalendarModalPanel(dateStr, dateParameterName, language, event, keepParam);
}

function showCalendarModalPanel(dateStr, dateParameterName, language, event, keepParam)

{
     var x = event.clientX + document.body.scrollLeft;
	 var y = event.clientY + document.body.scrollTop;


      calendarPanel.moveTo(x, y);
      document.getElementById("calendar_panel").style.display = "block";
      calendarPanel.show();
	
	  var date = new Date();
 	  if (dateStr.length == 8){
 		date = new Date();
 		var month = parseInt(dateStr.substring(4,6),10);//month 0-11
 		
 		if(isValidDate(dateStr.substring(0,4),month,dateStr.substring(6,8)))
 		  month = month -1;
 		  date.setFullYear(dateStr.substring(0,4),month,dateStr.substring(6,8));
 	  }  
    
 	  reload(date.getTime(), dateParameterName, keepParam);    
      document.getElementById("input_day").focus();
      document.getElementById("input_day").select();
}

function buildDate(dateStr)
{
  var date = new Date();
  if (dateStr.length == 8){
	date = new Date();
	var month = parseInt(dateStr.substring(4,6),10);//month 0-11
	if(isValidDate(dateStr.substring(0,4),month,dateStr.substring(6,8)))
	  month = month -1;
	date.setFullYear(dateStr.substring(0,4),month,dateStr.substring(6,8));
  }
  var monthStr = ""+(date.getMonth()+1);
  if(monthStr.length==1)
	monthStr = "0"+monthStr;
  var dayStr = ""+date.getDate();
  if(dayStr.length==1)
	  dayStr = "0"+dayStr;
  return date.getFullYear()+""+monthStr+""+dayStr;
}

function closeCalendar(event)
{
  if(canCloseModalPanel(calendarPanel, event))
  {
	calendarPanel.hide();
  }
}

function closeCountryChoice(event)
{
  if(canCloseModalPanel(countryPanel, event))
  {
    countryPanel.hide();
  }
}

function showCountryModalPanel(dateStr, language, event, zone)
{
  overlayTarConsultPanelClicked=true;
   if (document.getElementById("dropDown").disabled) return;
   document.getElementById("dropDown").disabled=true;

   var link = new url("include/country_selection.jsp");
   link.setParameter("SimDate",dateStr);
   link.setParameter("Lang",language);
   link.setParameter("Code",document.getElementById("taricArea").value);
   
   var connectCallback = {
	success: function(o) {
		var msg = "OK : status = " + o.status + "\nstatusText = " + o.statusText + " \nresponse = " + o.responseText;
		countryPanel.body.innerHTML =  o.responseText;
	},
	failure: function(o) {
		var msg = "NOK : status = " + o.status + "\nstatusText = " + o.statusText + " \nresponse = " + o.responseText;
	},
	cache:false
   }

    var  curleft = 0;
    var  curtop = zone.offsetHeight;
    do {
	  curleft += zone.offsetLeft;
	  curtop += zone.offsetTop;
    } while (zone = zone.offsetParent);


   var x = curleft;
   var y = curtop;


   var transaction =	YAHOO.util.Connect.asyncRequest('GET', link.currentUrl, connectCallback, null)
	transaction.conn.onreadystatechange = function() {
	 if(transaction.conn.readyState == 4) {
	 	countryPanel.setHeader("");
	 	countryPanel.setBody(transaction);	
		countryPanel.render();
		countryPanel.moveTo(x, y);
        document.getElementById("country_panel").style.display = "block";
        countryPanel.show(); 
        document.getElementById("dropDown").disabled=false;
	 } 
  
  }; 
}



function expandGoods(code) 
{ 

   var link = new url(window.location.href);
   link.setParameter("Taric",code);
   link.setParameter("Expand","true");
   link.setParameter("Screen","0");
   
   if(code!=null)
   {
	 var codeOnTen = code;
	 while(codeOnTen.length != 10)
     {
	   codeOnTen = codeOnTen+"0";
     }
	 window.location.href = link.currentUrl+"#"+codeOnTen;
   }
   else
   	window.location.href = link.currentUrl;
} 

function closeTarConsultOverlayPanels(event)
{
  if(overlayTarConsultPanelClicked==true)
    overlayTarConsultPanelClicked=false;
  else
  {
    closeCalendar(event);
  }
}

function closeGeoSearchOverlayPanels(event)
{
  if(overlayGeoSearchConsultPanelClicked==true)
    overlayGeoSearchConsultPanelClicked=false;
  else
  {
    closeCalendar(event);
  }
}

function closeRegulationSearchOverlayPanels(event)
{
  if(overlayRegulationSearchConsultPanelClicked==true)
    overlayRegulationSearchConsultPanelClicked=false;
  else
  {
    closeCalendar(event);
  }
}


function canCloseModalPanel(panel, event)
{
  if (event==null)
	return true;
	if(panel==null)
  return false;
  var cursorX = event.clientX + document.body.scrollLeft;
  var cursorY = event.clientY + document.body.scrollTop;
	  
  var panelX = panel.cfg.config.x.value;
  var panelY = panel.cfg.config.y.value;
	
  if(panel.body == null)
	  return true;
  var panelWidth = panel.body.offsetWidth; 
  var panelHeight = panel.body.offsetHeight;
	
  if( cursorX < panelX || cursorY < panelY ||
    cursorX > (0+parseInt(panelX)+parseInt(panelWidth)) ||
    cursorY > (0+parseInt(panelY)+parseInt(panelHeight)))
  {
    return true;
  }
  else return false;
}

function isValidDate(year, month, day)
{
  var date = new Date();
	date.setFullYear(year,(month-1),day);
	if(year != date.getFullYear())
    return null;
	if(month != date.getMonth()+1)
	  return null;
	if(day != date.getDate())
	  return null;
	
  return date;	   
}

function isNumeric(text)
{
   var validChars = "0123456789";
   var char;
 
   for (i = 0; i < text.length; i++) 
   { 
	   char = text.charAt(i); 
	   if (validChars.indexOf(char) == -1) 
	   {
	     return false;
	   }
   }
   return true;
}

function loadjs(file)
{

  //Create a 'script' element	
  var scrptE = document.createElement("script");

  //Set 'type' and 'language' attribs 
  scrptE.setAttribute("type", "text/javascript");
  scrptE.setAttribute("language", "JavaScript");


  scrptE.setAttribute("src", file);

  // create an object of the head element of current page
  var hdEl = document.getElementsByTagName("head")[0];

  //check for previously appended child 
  //(it ensures that each time the button is pressed it
  // removes the previously loaded script element)
  if (hdEl.childNodes.length > 1) {
   hdEl.removeChild(hdEl.lastChild);
  }

  hdEl.appendChild(scrptE);

}