//
//	Functions for AJAX use
//	Copyright OLC Systems s.r.o.
//	Source:  http://www.sitepoint.com/article/take-command-ajax
//	Modified by: David pokorny

/*
 * @param async if false then a client waits for a server's response
 */
function makeHttpRequest(httpServer, paramsString, requestName, elementId, targetdiv, async, functionname, method, postParams) {
   var http_request;
   http_request = false;
   
   var href = location.href;	
   var http = href.split('//');
   var domain = http[1].split('/');
   // generate proxy address
   httpServer = http[0]+'//'+domain[0]+'/proxy/proxy.php';

   if (targetdiv==undefined) {
	   targetdiv = true;
   }

   if (async==undefined) {
	   async = true;
   } else {
	   if (async!=false) {
		   async = true;
	   }
   }
   
   if (method==undefined) {
	   method = 'GET';
   }
  
   if (postParams==undefined || method == 'GET') {
	   postParams = null;
   } 
   
   var mytime = "&antiCache="+new Date().getTime();
   
   url = httpServer+"?request="+requestName;
   // prepare url add cookie identification

   var targetdivvalue="true";
   if (targetdiv==true) {
   		targetdivvalue = "true";
   } else {
   		targetdivvalue = "false";
   }
   
   var asyncvalue="true";
   if (async==true) {
   		asyncvalue = "true";
   } else {
   		asyncvalue = "false";
   }
   
   paramsString = encodeURI(paramsString);
   if ( paramsString.substring(0, 1) != "&" )
   {
	   paramsString = "&"+paramsString;
   }
   if (functionname==undefined || functionname=='') 
   {
	   functionname = "";
   }
   url = url + "&ajax=1"+paramsString+mytime+"&elementid="+elementId+"&targetdiv="+targetdivvalue+"&async="+asyncvalue+"&functionname="+functionname;
   
   if (window.XMLHttpRequest) { // Mozilla, Safari, IE7...
       http_request = new XMLHttpRequest();
       if (http_request.overrideMimeType) {
           http_request.overrideMimeType('text/xml');
       }
   } else if (window.ActiveXObject) { // <=IE6
       try {
           http_request = new ActiveXObject("Msxml2.XMLHTTP");
       } catch (e) {
           try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
           } catch (e) {}
       }
   }

   if (!http_request) {
       alert('Váš prohlížeč nepodporuje techniku AJAX\'t Použíjte prosím kompatibilní prohlížeč.');
       return false;
   }
   
   if (async==true) {
     http_request.onreadystatechange = function() {
         if (http_request.readyState == 4) {
             if (http_request.status == 200) {
            	 if (functionname==undefined || functionname=='') {
	            	  if (targetdiv) {
	   	              	eval('setContent("'+elementId+'",http_request.responseText)');
                        JsCore.convertNewCheckboxesIfFancyForm();
	   	              } else {
	  	 	            eval('fillObject("'+elementId+'",http_request.responseText)');
	   	              }
            	 } else {
            		 eval(functionname+'("'+elementId+'",http_request.responseText)');
                     JsCore.convertNewCheckboxesIfFancyForm();
            	 }
             }
         }
     }
   }

   
   http_request.open(method, url, async);
   http_request.setRequestHeader('X_REQUESTED_WITH', 'XMLHttpRequest');
   
   if (method=="POST") {
	   http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	   http_request.setRequestHeader("Content-length", postParams.length);
	   http_request.setRequestHeader("Connection", "close");
   }
   
   http_request.send(postParams);
   
   // Async call
   if (async==false) {
      if (http_request.status == 200) {
       		  if (targetdiv) {
            	eval('setContent("'+elementId+'",http_request.responseText)');
                JsCore.convertNewCheckboxesIfFancyForm();
            } else {
              eval('fillObject("'+elementId+'",http_request.responseText)');
            }

       } else {
           // alert('There is problem with communication. (Return code: ' + http_request.status + ')');
       }
   }
}

// callback function
function fillObject(objectId,htmlresponse) {

    targetObject = document.getElementsByName(objectId);

    if (!targetObject[0]) {
    	// window.alert("Neplatný cílový object "+objectId);
    	return;
    }
        
    targetObject[0].value = htmlresponse;
    externallinks();
}

// callback function
function setContent(elementId,htmltext) {
   // check if elementid exist
    targetObject = document.getElementById(elementId);
    if (htmltext.substr(0,1)!="<") {
    	if (htmltext.length>0) {
    		window.alert(htmltext);
    	}
    } else {
    	if(htmltext.length>0) { 
		    if (!targetObject) {
			  // window.alert("Target object "+elementId+" doesnot exist.");
		    } else {
			  document.getElementById(elementId).innerHTML=htmltext;
			  externallinks();
		    }
		}
	}
}

function getXmlObject(xmlData) {
	try //Internet Explorer
	{
		xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
		xmlDoc.async="false";
		xmlDoc.loadXML(xmlData);
	}
	catch(e)
	{
	try //Firefox, Mozilla, Opera, etc.
	{
		parser=new DOMParser();
		xmlDoc=parser.parseFromString(xmlData,"text/xml");
	}
	catch(e)
	{
		alert(e.message);
		return null;
	}
	}
	return xmlDoc;
}

function callbackExecuteAllScriptsInResponse(targetDiv,xmlData) {
    setContent(targetDiv,xmlData);

    AjaxCore.executeScriptsInDiv(targetDiv);
}

// Send forms to ajax function 
// Author: David Pokorny 
function sendFormByAjax(phpform, requestName, formElementId,buttonName) { 
	/* validate */
	if (phpform.enctype!="application/x-www-form-urlencoded") {
		alert("Invalid encoding type is occured.");		
	}
	
	if (buttonName==undefined) {
		buttonName = "submit";
	}
	
	/* don't use this params from form action, they are defined in this function */
	var skipParamsArray = new Array("request","ajax","elementid","targetdiv","async","functionname");
	
	/* Get params string from form action */
	var paramsString="";
	var separator = "";
	var postParams = "";
	
	separator = "&";
	var defaultParamsString = phpform.action.substring(phpform.action.indexOf("?")+1);
	var paramsArray = defaultParamsString.split(separator);
	separator = "";
	
	for (var c=0; c < paramsArray.length; c++  )
	{
		var delItem = false;
		var promArray = paramsArray[c].split("=");
		
		for (var a=0; a < skipParamsArray.length; a++)
		{
			if (promArray[0] == skipParamsArray[a])
			{
				delItem = true;
				break;
			}
		}
		
		if (!delItem)
		{
			paramsString = paramsString + separator + paramsArray[c];
			separator = "&";
		}
	}
	separator = "";
	
	 

        //AjaxCore.updateAllFCKEditors();
        
	for (var cycle=0;cycle<phpform.length;cycle++)
	{
	  if (phpform.elements[cycle].type=="file" || phpform.elements[cycle].type=="button"
		  || phpform.elements[cycle].type=="submit") {
		  
		// file and buttons is ignored except main button		  
		if (phpform.elements[cycle].name!=buttonName) {
			continue;
		}
	  }

	  var name = phpform.elements[cycle].name;	  
	  if (phpform.elements[cycle].type=="checkbox") {
		  if (phpform.elements[cycle].checked==true) {
			  var value = phpform.elements[cycle].value;  
		  }	else {
			  var value = "";
		  }
	  } else {			 
		  var value = phpform.elements[cycle].value;		  
	  }	  
	  postParams = postParams +separator+ name+"="+encodeParam(value);	  
	  separator = "&";
	}
	
	/* call ajax method */	 
	makeHttpRequest("proxy.php", paramsString, requestName, formElementId, true, true,"callbackExecuteAllScriptsInResponse", "POST", postParams); 
}

function encodeParam(value)
{
	value = encodeURI(value);
	
	value = nReplace("+", "%2B", value);
	value = nReplace("&", "%26", value);
	value = nReplace("=", "%3D", value);
	
	function nReplace(searchString, replaceWith,  value2) 
	{
		while (value2.lastIndexOf(searchString) >= 0)			
		{
			value2 = value2.replace(searchString, replaceWith);
		}
		return value2
	}
		
	return value;	
}

/**
 * Namespace for ajax functions
 */
function AjaxCore() {}

/**
 * Function for invalidate div in page, used in ajax
 */
AjaxCore.invalidDiv = function(divId) {
	object = document.getElementById(divId);
	if (object == undefined) 
	{
		return;
	}	
	startSep = "<!--[[[";
	endSep = "]]]-->";
	startPosition = object.innerHTML.indexOf(startSep);
	if (startPosition > 0) 
	{
		slice = object.innerHTML.substr(startPosition+startSep.length);	
		eval(slice.substr(0,slice.indexOf(endSep)));
	}
}

/**
 * Update hidden textareas with content from FCKeditors
 */
AjaxCore.updateAllFCKEditors = function() {
    var iframes = $$('iframe[id*=___Frame]');
    $each(iframes, function(data, key){
        var splitedID = data.id.split("___");
        var fck = FCKeditorAPI.GetInstance(splitedID[0]);
        if (fck != undefined) {
            fck.UpdateLinkedField();
        }
    });
}

/**
 * This function is used if singleform file upload with "false ajax" is used.
 * File upload with "false ajax" loads it's content into a hidden iframe.
 * This function cuts a form from iframe and paste it into a page.
 * 
 * @param formID form id
 */
AjaxCore.fileUploadOnLoad = function(formID) {
    var messageBoxTopWin = $("messagebox");
    if (messageBoxTopWin != undefined) {
        messageBoxTopWin.parentNode.removeChild(messageBoxTopWin);
    }

    var iframe = $(formID+'__ajaxUpload');
    var formToReplace = $(formID);

    formToReplace.action = iframe.contentDocument.getElementById(formID).action;
    formToReplace.innerHTML = iframe.contentDocument.getElementById(formID).innerHTML;

    var messageBox = iframe.contentDocument.getElementById("messagebox");

    if (messageBox != undefined) {
        formToReplace.parentNode.innerHTML = formToReplace.parentNode.innerHTML+"<div class=\"messagebox_warning\" id=\"messagebox\">"+messageBox.innerHTML+"</div>";
    }

    AjaxCore.executeScriptsInDiv(formID);
}

/**
 * Execute all javascript in script elements in div with given id
 */
AjaxCore.executeScriptsInDiv = function(targetDiv) {
    var el = document.getElementById(targetDiv);
    var allNewScripts = el.getElementsByTagName('script');

    if (allNewScripts.length < 1) {
        return;
    }

    for (var i = 0; i < allNewScripts.length; i++) {
        eval(allNewScripts[i].innerHTML);
    }
}

// Functions for standard use
// Copyright OLC Systems s.r.o.
// version phpcore 27.8.2009

function externallinks(){
     var c=document.getElementById('content');
     if(c)
     {
         var ls=c.getElementsByTagName('a');
         for(var i=0;i<ls.length;i++){
        	 var atributerel;
         	 atributerel = ls[i].getAttribute('rel');
         	 if (atributerel==null) {
         	 	continue;
         	 }
         	 
         	 inNewWindow = atributerel.substr(0,8).toLowerCase()=="external";
             if(inNewWindow){      
               ls[i].onclick=function(){
                  openw(this.rel,this.href);
                  return false;
               }
             }             
         }
     }
  }
  
 function openw(atributerel,wlocation){
   // Separate resolution and type
  	var height="", width="", type="", windowoptions="";
  	
  	output = atributerel.split("_");  	
  	width = output[1];
  	height = output[2];
  	type   = output[3];
  	
	if (type != undefined && type > 0 ) {
		if ((Number(height)==0) || (Number(width)==0)) {
		window.alert("Invalid height or width of window. Please check external parameter");
		type = 0;
		}
	}
	
  	switch (type) {
  		case '1': // with toolbar resizable
        	params="location=yes,menubar=no,toolbar=yes,scrollbars=yes,resizable=yes,width="+width+",height="+height
  			break;
  		case '2': // onlyborder no resizable
       		params="location=no,menubar=no,toolbar=no,scrollbars=no,resizable=no,width="+width+",height="+height
    		break;
  		case '3': // onlyadress resizable
    		params="location=yes,menubar=no,toolbar=no,scrollbars=yes,resizable=yes,width="+width+",height="+height
  			break;
		default:
  			params="location=yes,menubar=no,toolbar=yes,scrollbars=yes,resizable=yes,width=1000,height=768"     			
  			break;
  	}  	

  	window.open(wlocation,"_blank",params)
 }
  
 function click_checkbox_multi(object, formname, checkboxString){
  var uid=object.name.split("_");
  var checkbox_name;

  if (uid[0]=="ctl") {
	  // Support phpCore 2.0	  
	  checkbox_name="ctl_"+uid[1]+checkboxString+formname;	  
  } else {
	  // backward compatibility
	  checkbox_name=uid[0]+checkboxString+formname;
  }
  var x=document.getElementsByName(checkbox_name)[0];
  x.checked=true;
  if (JsCore.isFancyForm()) {
      FancyForm.update(x.parentNode);
      //FancyForm.chks.each(FancyForm.update);
      object.focus();
  }
 }

function click_checkbox(object, formname){
	click_checkbox_multi(object, formname, "_editedcheck_");
}

function click_insert_checkbox(object, formname){
	click_checkbox_multi(object, formname, "_insertcheck_");
}

// multiselect between checkbox disabled
// Jan Novak
function select_id(formname, checkboxObject){
   var lInputs=document.forms[formname].elements;
   var lInputsCount=document.forms[formname].elements.length;
   for(var Cyklus=0;lInputsCount>Cyklus; Cyklus++){
     if(lInputs[Cyklus].type=="checkbox" && lInputs[Cyklus].name.indexOf("edited")>0){
       lInputs[Cyklus].checked=false;
     }
   }
   checkboxObject.checked="true";
}

function inverse_checkboxes(formName, checkboxName, checkboxFunction) {
	//parameters:
	//formName - where script search for checkboxes, it must be unique name of form
	//checkboxName - part of name of checkboxes. To these checkboxes will be changed property checked
    var isFancyForm = JsCore.isFancyForm();
    
    var lInputs=document.forms[formName].elements;
    var lInputsCount=document.forms[formName].elements.length;
    for(var Cycle=0;lInputsCount>Cycle; Cycle++){
      if(lInputs[Cycle].type=="checkbox" && lInputs[Cycle].name.indexOf(checkboxName)>0){
        if(lInputs[Cycle].checked){
           lInputs[Cycle].checked=false;
        }else{
           lInputs[Cycle].checked=true;
        }
        if (isFancyForm) {
            FancyForm.update(lInputs[Cycle].parentNode);
        }
        if (checkboxFunction!=undefined) {
        	eval("result="+checkboxFunction+"(lInputs[Cycle]);");
        }
      }
    }


 }

//function for hiddin and appearing search box in multiform
// Honza Novak & Jakub Ferenc
function collapse(element){
	document.getElementById(element).style.display="none";
}
	
function expand(element){
	document.getElementById(element).style.display="block"
}	
	
function searchBoxAction(element){
	if(document.getElementById(element).style.display=="none")
		expand(element)
	else
		collapse(element)
}

function hide_core_message(delay){
    var core_message=document.getElementById("core_message");
    var core_message2=document.getElementById("core_message2");
    if(core_message){
      core_message.style.visibility='visible';
      core_message2.style.visibility='visible';
      window.setTimeout("document.getElementById('core_message').style.visibility='hidden';document.getElementById('core_message2').style.visibility='hidden'", delay)
    }
  }
  
/**
 * Author: David Pokorny
 * Simple display and hide object 
 */ 
function visibilityHandling(hidden,divId) {
     rightMenuObject = document.getElementById(divId);     

     if (hidden==null) {
    	if (rightMenuObject.style.visibility=="hidden") {
    		rightMenuObject.style.visibility="visible";
    	} else {
    		rightMenuObject.style.visibility="hidden";
    	}
     } else {
	     if (hidden==true) {
	        rightMenuObject.style.visibility="hidden";
	     } else {
	        rightMenuObject.style.visibility="visible";
	     }
     }
}  

function setPreloaderInfo(elementId,htmlInfo) {
	if (!htmlInfo)
	{
		htmlInfo = "Moment prosím načítám data...";
	}
	objectElement = document.getElementById(elementId);
	objectElement.innerHTML=htmlInfo;
}

/**
 * 
 * @param string  textToTitle 
 * @param type 1- before, 2-end, 0-replace - default
 * @return
 */
function addToTitle(textToTitle,type) {
	if (type==undefined) {
		type = 0;  
	}
	switch (type) {
	case 0:
		document.title = textToTitle;
		break;
	case 1:
		document.title = textToTitle+" "+document.title;
		break;
	case 2:
		document.title = document.title +" "+textToTitle;
		break;
	}
}

/* Assign list function */
/* David Pokorny */
function refreshAssignList(indexphp,otherParameters,targetAjax, preloader, objectId) {
	setPreloaderToList(objectId,preloader);
	makeHttpRequest(indexphp,otherParameters+"&listaction=refresh",targetAjax,targetAjax);
}

function removeAssignList(indexphp,otherParameters,targetAjax,objectId) {
	selectXml = getSelectArray(objectId);
	makeHttpRequest(indexphp,otherParameters+"&selection="+selectXml+"&listaction=remove",targetAjax,targetAjax,true,false);
}

function addAssignList(indexphp,otherParameters,targetAjax,objectId) {
	selectXml = getSelectArray(objectId);
	/* httpServer, paramsString, requestName, elementId, targetdiv, async */	
	makeHttpRequest(indexphp,otherParameters+"&selection="+selectXml+"&listaction=assign",targetAjax,targetAjax,true,false);
}

function setPreloaderToList(elementId,preloaderText) {
	objectElement = document.getElementById(elementId);
	objectElement.length = 1;
	objectElement.options[0].text = preloaderText;
	objectElement.disabled = true;
}

function getSelectArray(objectId) {
	var objectElement, cycle, output; 
	objectElement = document.getElementById(objectId);
	output = '<?xml version="1.0" encoding="UTF-8"?><selection>';
	for (cycle=0; cycle<objectElement.length;cycle++) {
		if (objectElement.options[cycle].selected) {
			output = output +'<item>'+objectElement.options[cycle].value+'</item>';
		}		
	}
	output = output + '</selection>';
	return urlencode(output); 
}

/* source: http://www.phpbuilder.com/board/showthread.php?t=10318476 */
function urlencode(str) {
	str = escape(str);
	str = str.replace('+', '%2B');
	str = str.replace('%20', '+');
	str = str.replace('*', '%2A');
	str = str.replace('/', '%2F');
	str = str.replace('@', '%40');
	return str;
	}



/*used to move with popupWindow*/
function activateMover(divID) {
    var divTmp = divID + '_header';
    var divEl = document.getElementById(divTmp);
    if (divEl == undefined) {
        return;
    }
    
    divEl.onmousedown = function(e) {
        e = e || event;
        var thisObj = this;
        this.posX = parseInt(this.style.left + '0');
        this.posY = parseInt(this.style.top + '0');
        this.mouseX = e.clientX;
        this.mouseY = e.clientY;

        var containerObj = document.getElementById(divID);
        this.containerPosX = parseInt(containerObj.style.left + '0');
        this.containerPosY = parseInt(containerObj.style.top + '0');

        var debugDiv = document.getElementById(divID+'_debug');

        document.documentElement.onmousemove = function(e) {
            e = e || event;

            containerObj.style.left = (e.clientX - thisObj.mouseX + thisObj.containerPosX) + "px";
            containerObj.style.top = (e.clientY - thisObj.mouseY + thisObj.containerPosY) + "px";
            return false;
        };

        document.documentElement.onmouseup = function(e) {
            document.documentElement.onmousemove = null;
            document.documentElement.onmouseup = null;

            if (debugDiv != undefined) {
                debugDiv.innerHTML = "l: "+containerObj.style.left+" t: "+containerObj.style.top;
            }

            return false;
        };
    };
}

//var rowColor = ""; //do not remove!
/**
 * Set a color to all cells in a row
 *
 * @param cell HTMLElement td element
 * @param color String
 */
function setBgColorToRow(cell, color) {
    /*if (color == undefined) {
        color = rowColor;
    } else {
        rowColor = cell.style.background;
    }*/

    var row = cell.parentNode;
    for (i = 0; i < row.cells.length; i++) {
        cellTmp = row.cells[i];
        cellTmp.style.backgroundColor=color;
        cellTmp.style.cursor='pointer';
    }
}
/**
 * Unset a color in all cells in a row
 *
 * @param cell HTMLElement td element
 */
function unsetBgColorToRow(cell) {
    var row = cell.parentNode;
    for (i = 0; i < row.cells.length; i++) {
        cellTmp = row.cells[i];
        cellTmp.style.backgroundColor='';
        //cellTmp.style.cursor='auto';
    }
}

/**
 * class/namespace for basic javascript functions
 */
function JsCore() {}

/**
 * @var if bookmarks over Ajax, then actual bookmark is saved in this variable
 */
JsCore.bookmark;

/**
 * @var deafult preloader text set dynamically by server
 */
JsCore.preloaderText = '';

/**
 * check if FancyForm (uses Mootools) is used to create graphic checkboxes
 * @return boolean
 */
JsCore.isFancyForm = function() {
    if (typeof(FancyForm)=='object') {
        return true;
    } else {
        return false;
    }
}

/**
 * Convert checkboxes in left column in multiform to pictures if Mootools FancyForm available
 */
JsCore.convertNewCheckboxesIfFancyForm = function() {
    if (JsCore.isFancyForm()) {
        var chkboxesE = $$('input[name*=editedcheck]');
        var chkboxesI = $$('input[name*=insertcheck]');
        FancyForm.add(chkboxesE);
        FancyForm.add(chkboxesI);
    }
}

/**
 * Remove element with given id
 * @var elementID
 */
JsCore.removeElement = function(elementID)
{
    var child = $(elementID);
    child.parentNode.removeChild(child);
}

/**
 * @param url String
 * @param width int
 * @param height int
 * @param type int
 */
JsCore.openw = function(url,width,height,type){
    var params = "";

	if (type > 0) {
		if ((Number(height)==0) || (Number(width)==0)) {
		window.alert("Invalid height or width of window. Please check external parameter");
		type = 0;
		}
	}

  	switch (type) {
  		case 2: // onlyborder no resizable
       		params="location=no,menubar=no,toolbar=no,scrollbars=no,resizable=no,width="+width+",height="+height
    		break;
  		case 3: // onlyadress resizable
    		params="location=yes,menubar=no,toolbar=no,scrollbars=yes,resizable=yes,width="+width+",height="+height
  			break;
        case 1: // with toolbar resizable
		default:
  			params="location=yes,menubar=no,toolbar=yes,scrollbars=yes,resizable=yes,width="+width+",height="+height
  			break;
  	}
  	window.open(url,"_blank",params)
 }

/**
 * Strip curly brackets from given string
 * @param stringValue e.g. uid
 */
JsCore.stripCurlyBrackets = function(stringValue) {
    if (stringValue == undefined || (typeof(stringValue)!='string')) {
        return stringValue;
    }

    stringValue = stringValue.replace(/\{/g,"");
    stringValue = stringValue.replace(/\}/g,"");

    return stringValue;
}


/**
 * Change position of div with divID
 * Document coordinates: var coordinates = document.getCoordinates(); //etc. check mootools function getCoordinates();
 * window.onresize = someFunctionName; if you need to reposition window on browser resize
 *
 * @param divID div id
 * @param left space left page border to left top corner of element
 * @param top space top page border to left top corner of element
 */
JsCore.setPopupWindowPosition = function(divID,left,top) {
    var containerObj = $(divID);

    if (containerObj == undefined || containerObj == null)
    {
        return;
    }
    containerObj.style.left = left + "px";
    containerObj.style.top = top + "px";
}

/**
 * Return selected options in combo as array or empty array
 * JsCore functions require Mootools
 *
 * @param comboID if of combo to be processed
 * @return array of selected options or empty array
 */
JsCore.getSelectedOptions = function(comboID)
{
    var options = new Array();
    var idx = 0;

    listObject = $(comboID);

    if (listObject == undefined)
    {
        return options;
    }
    for (cycle=0; cycle<listObject.length;cycle++) {
        if (listObject.options[cycle].selected) {
            options[idx] = listObject.options[cycle];
            idx = idx + 1;
        }
    }

    return options;
}

/**
 * Return checked checkboxes (only "control checkboxes" == first column) in a multiform
 * Require Mootools
 *
 * return array of checkboxes or null if nothing checked
 */
JsCore.getSelectedChckboxesInMultiform = function(formName, msgNothingChecked)
{
    var checked = new Array();
    var idx = 0;
    var chkboxes = $$('#' + formName + ' input[name*=editedcheck]');

    //no checkbox is checked
    if ( chkboxes.every(function(el) {return el.checked == false;}) ) {
        if (msgNothingChecked != undefined)
        {
            alert(msgNothingChecked);
        }

        return null;
    }

    //get checked checkboxes
    chkboxes.each(function(el) {
        if (el.checked == true) {
            checked[idx] = el;
            idx = idx + 1;
            /*var splitted = el.name.split('_');
            var id = splitted[1];
            $('id_blank').value = id;
            $('blank_identifier').value = $('ctl_'+id+'_identifier').value;*/
            return;
        }
    });

    return checked;
}

/**
 * Fire onchange event on element with given id
 * @param elementID String
 */
JsCore.fireOnChange = function(elementID)
{
    var el = $(elementID);

    if (el.hasAttribute)
    { // Firefox
        if(el.hasAttribute("onchange"))
        {
            el.onchange();
        }
    }
    else if (el.onchange)
    { // IE
        var newEvt = document.createEventObject();
        el.fireEvent("onchange", newEvt);
    }
}

/*
 *Replace text in a path link (in a path area)
 *@param title new title
 *@param position position of link in a path area starting by 0
 *@param replaceDocumentTitle if true, a document title is also replaced
 */
JsCore.replacePathLinkText = function(title, position, replaceDocumentTitle)
{
    if (replaceDocumentTitle == undefined || replaceDocumentTitle == true)
    {
        document.title = title + " - " + document.title;
    }

    //normal view
    var pathlinks = $$('a[class=pathlink]');
    if (pathlinks != undefined && pathlinks[position] != undefined)
    {
        pathlinks[position].innerHTML = title;
        return;
    }

    //onlycontent view - h1 has to have id=main_header_oc_title
    var mainHeaderArea = $('main_header_oc_title');
    if (mainHeaderArea == undefined)
    {
        return;
    }

    mainHeaderArea.innerHTML = title;
}

/**
 * Used by selectWithButtonsClass
 */
function comboWithButtons() {}

/**
 *Select previous combo option
 */
comboWithButtons.selectPrevious = function(comboID)
{
    var combo = $(comboID);

    var index = combo.selectedIndex;
    if (index > 0)
    {
        combo.options[index].selected = false;
        combo.options[index - 1].selected = true;
    }

    JsCore.fireOnChange(comboID);
}

/**
 *Select next combo option
 */
comboWithButtons.selectNext = function(comboID)
{
    var combo = $(comboID);
    var index = combo.selectedIndex;

    if (index < combo.length - 1)
    {
        combo.options[index].selected = false;
        combo.options[index + 1].selected = true;
    }

    JsCore.fireOnChange(comboID);
}

/**
 * Update buttons (active/passive)
 */
comboWithButtons.update = function(comboID)
{
    var combo = $(comboID);
    var index = combo.selectedIndex;

    if (index == combo.length - 1)
    {
        $(comboID + '_nextActive').style.display = "none";
        $(comboID + '_nextEnd').style.display = "inline";
    }

    if (index < combo.length - 1)
    {
        $(comboID + '_nextActive').style.display = "inline";
    $(comboID + '_nextEnd').style.display = "none";
    }

    if (index == 0)
    {
        $(comboID + '_prevActive').style.display = "none";
        $(comboID + '_prevEnd').style.display = "inline";
    }

    if (index > 0)
    {
        $(comboID + '_prevActive').style.display = "inline";
        $(comboID + '_prevEnd').style.display = "none";
    }
}