<!--

   function __JumpTodayDate(){
      var jump_day   = GL_jump_day;
      var jump_month = GL_jump_month;
      var jump_year  = GL_jump_year;
      var view_type  = ($("#view_type")) ? $("#view_type").val() : GL_view_type;

      __doPostBack('view', view_type, jump_year, jump_month, jump_day);
   }

   function __JumpToDate(){
      __doPostBack('view', $("#view_type").val(), $("#jump_year").val(), $("#jump_month").val(), $("#jump_day").val());
   }

   function __EventsSort(sort_by, sort_direction){
      $("#hid_sort_by").val((sort_by != null) ? sort_by : '');
      $("#hid_sort_direction").val((sort_direction != null) ? sort_direction : '');
      __doPostBack('view', null, null, null, null, 'events_management');      
   }

   function __CategoriesSort(sort_by, sort_direction){
      $("#hid_sort_by").val((sort_by != null) ? sort_by : '');
      $("#hid_sort_direction").val((sort_direction != null) ? sort_direction : '');
      __doPostBack('view', null, null, null, null, 'categories_management');      
   }

   function __UsersSort(sort_by, sort_direction){
      $("#hid_sort_by").val((sort_by != null) ? sort_by : '');
      $("#hid_sort_direction").val((sort_direction != null) ? sort_direction : '');
      __doPostBack('view', null, null, null, null, 'users_management');      
   }

   function __doPostBack(action, view_type, year, month, day, event_action, event_id, page, chart_type, category_id, user_id, event_user_id){			      
      $("#hid_event_action").val((event_action != null) ? event_action : '');
      $("#hid_event_id").val((event_id != null) ? event_id : '');      
      $("#hid_action").val((action != null) ? action : 'view');
      $("#hid_view_type").val((view_type != null) ? view_type : 'monthly');
      $("#hid_year").val((year != null) ? year : GL_today_year);
      $("#hid_month").val((month != null) ? month : GL_today_mon);
      $("#hid_day").val((day != null) ? day : GL_today_mday);
      $("#hid_page").val(page);
      $("#hid_chart_type").val(chart_type);
      $("#hid_category_id").val(category_id);
      $("#hid_user_id").val(user_id);
      $("#hid_event_user_id").val(event_user_id);
      
      $("#frmCalendar").submit();
   }

   function __doPostBackWith(event_name, eid, euid){
         var jump_day    = ($("#jump_day")) ? $("#jump_day").val() : '';
         var jump_month  = ($("#jump_month")) ? $("#jump_month").val() : '';
         var jump_year   = ($("#jump_year")) ? $("#jump_year").val() : '';
         var view_type   = ($("#view_type")) ? $("#view_type").val() : '';
         __doPostBack('view', view_type, jump_year, jump_month, jump_day, event_name, eid, null, null, null, null, euid);
   }

   function __HideEventForm(el){
      $("#"+el+"_lnkClose").attr("style", "display:none");
      $("#"+el).animate({
          height: 'toggle',
          opacity: -0.25
        }, 450, function() {
         // Animation complete.
      });      
   }
   
   function __ShowEventForm(el, form_type){
      var local_x = 200;
      var local_y = 100;
      var window_x = $(window).width();
      var window_y = $(window).height();
      var div_width = 370;
      var div_height = 250;
      var form_type_ = (form_type != null) ? form_type : "add";

      if(form_type_ == "day"){
         local_x = ($(window).width() - div_width)/2; 
         local_y = 180;         
      }else{
         // move div at the right from the click point
         if($("#"+el).position().left <= click_x){
            local_x = click_x + 12;
            local_y = click_y - 10;
         }else{
            local_x = $("#"+el).position().left;
            local_y = $("#"+el).position().top;
         }         
         // move left if right border was touched
         if((window_x - local_x) < (div_width + 10)){
            local_x = local_x - (div_width + 70);
            // don't move if difference is too small
            if(Math.abs(local_x - $("#"+el).position().left) < 10){
               local_x = $("#"+el).position().left;
            }         
            local_y = (window_y - div_height) / 2;
         }   
         // move top if bottom border was touched
         if((window_y - local_y) < (div_height + 10)){
            local_y -= div_height;
         }         
      }
   
      $("#"+el).css({ "opacity": 1.0, "left": local_x + "px", "top": local_y + "px" });
      if($("#"+el).is(":hidden")) $("#"+el).show();
      $("#divAddEvent_lnkClose").attr("style", "display:inline");
   }   
   
   function __CallAddEventForm(el, year, month, day, hour, allow_disabling, form_type)
   {
      //close edit event form
      $("#divEditEvent").attr("style", "display:none");
      
      __ShowEventForm(el, form_type);
      var event_from_year    = document.getElementById('event_from_year');
      var event_to_year 	 = document.getElementById('event_to_year');				
      var event_from_month   = document.getElementById('event_from_month');
      var event_to_month 	 = document.getElementById('event_to_month');				
      var event_from_day     = document.getElementById('event_from_day');
      var event_to_day 	     = document.getElementById('event_to_day');				
      var event_from_hour    = document.getElementById('event_from_hour');
      var event_to_hour 	 = document.getElementById('event_to_hour');
      var allow_disabling_ 	 = (allow_disabling != null) ? allow_disabling : false;
      
      for(i = 0; i < $("#event_from_hour").attr('options').length; i++){
         if(allow_disabling_){
            if(event_from_hour.options[i].value < hour){
               event_from_hour.options[i].disabled = true;
            }else{
               event_from_hour.options[i].disabled = false;
            }            
         }
         if(event_from_hour.options[i].value == hour){
            event_from_hour.options[i].disabled = false;
            event_from_hour.options[i].selected = true;
            event_to_hour.options[i+1].selected = true;
         }
      }

      for(i = 0; i < $("#event_from_day").attr('options').length; i++){
         if(event_from_day.options[i].value == day){
            event_from_day.options[i].selected = true;
            event_to_day.options[i].selected = true;
         }
      }

      for(i = 0; i < $("#event_from_month").attr('options').length; i++){
         if(event_from_month.options[i].value == month){
            event_from_month.options[i].selected = true;
            event_to_month.options[i].selected = true;
         }
      }
      
      for(i = 0; i < $("#event_from_year").attr('options').length; i++){
         if(event_from_year.options[i].value == year){
            event_from_year.options[i].selected = true;
            event_to_year.options[i].selected = true;
         }
      }
   
      $('#divAddEvent_msg').html("");
      $('#event_name').val("");
      $('#event_description').val("");
      $('#sel_event_new').trigger('click');      
      
      if(!$('#event_name').is(":disabled")) $('#event_name').focus();
   }
   
   function __CallEditEventForm(el, cal_id)
   {
      // zzzzzz 
      //close add event form
      $("#divAddEvent").attr("style", "display:none");
      
      var div_width = 370;
      var div_height = 250;
      
      var local_x = ($(window).width() - div_width)/2; 
      var local_y = 180;
      
      if($("#"+el).is(":hidden")){
         $("#"+el).show();
         $("#"+el).css({ "opacity": 1.0, "left": local_x + "px", "top": local_y + "px" });                  
      }
      $("#divEditEvent_lnkClose").attr("style", "display:inline");      
      $.ajax({         
         url: "ajax/handler.ajax.php",
         global: false,
         type: "POST",
         data: ({cid : cal_id, check_key : "apphpcal"}),
         dataType: "html",
         async:false,
         success: function(html){
            var obj = jQuery.parseJSON(html);            

            if(obj.status == "1"){            
               var from_date_split = obj.from_date.split('-', 3);
               var from_year  = (from_date_split[0]);
               var from_month = (from_date_split[1]);
               var from_day   = (from_date_split[2]);
               var from_time_split = obj.from_time.split(':', 2);
               var from_hour   = (from_time_split[0]);
               var from_minute = (from_time_split[1]);
               
               var to_date_split = obj.to_date.split('-', 3);
               var to_year  = (to_date_split[0]);
               var to_month = (to_date_split[1]);
               var to_day   = (to_date_split[2]);
               var to_time_split = obj.to_time.split(':', 2);
               var to_hour   = (to_time_split[0]);
               var to_minute = (to_time_split[1]);
   
               $("#event_name_edit").val(obj.name);
               $("#event_description_edit").val(obj.description);
               $("#event_unique_key").val(obj.unique_key);
               $("#event_name_edit").attr('readonly', true);
               //$("#event_description_edit").attr('readonly', true);
               
               $("#event_from_edit_year option[value='"+from_year+"']").attr('selected','selected');
               $("#event_from_edit_month option[value='"+from_month+"']").attr('selected','selected');
               $("#event_from_edit_day option[value='"+from_day+"']").attr('selected','selected');
               $("#event_from_edit_hour option[value='"+from_hour+":"+from_minute+"']").attr('selected','selected');
   
               $("#event_to_edit_year option[value='"+to_year+"']").attr('selected','selected');
               $("#event_to_edit_month option[value='"+to_month+"']").attr('selected','selected');
               $("#event_to_edit_day option[value='"+to_day+"']").attr('selected','selected');
               $("#event_to_edit_hour option[value='"+to_hour+":"+to_minute+"']").attr('selected','selected');
               
               if($("#event_to_edit_hour option").size() > $("#event_to_edit_hour").attr("selectedIndex")+1){
                  $("#event_to_edit_hour").attr("selectedIndex", $("#event_to_edit_hour").attr("selectedIndex")+1);
                  //xxxxx1
               }                          
            }else{
               $("#divEditEvent_msg").html("<span class='msg_error'>Wrong parameters passed or connection error!</span>");
            }
         }
      });
   }


   /////////////////////////////////////////////////////////////////////////////   
   // EVENTS

   // Cancel event inserting 
   function __EventsCancel(){      
      __doPostBack('view', null, null, null, null, 'events_management');
      return true;
   }

   // Back to events management
   function __EventsBack(event_name){
      var event_name_ = (event_name) ? event_name : 'events_management';      
      __doPostBackWith(event_name_);
      return true;
   }

   // Delete event 
   function __EventsDelete(eid){			
      if(confirm(Vocabulary._MSG["alert_delete_event_occurrences"])){			
         __doPostBackWith('events_delete', eid);
         return true;
      }
      return false;
   }

   // Edit event
   function __EventsEdit(eid){
      __doPostBackWith('events_edit', eid);
      return true;
   }   

   // View event details
   function __EventsDetails(eid){
      __doPostBackWith('events_details', eid);
      return true;
   }   

   // Delete by range 
   function __EventsDeleteByRange(){            
      var start_datetime  = $('#event_from_year').val()+$('#event_from_month').val()+$('#event_from_day').val();
      var finish_datetime = $('#event_to_year').val()+$('#event_to_month').val()+$('#event_to_day').val();

      if(start_datetime >= finish_datetime){
         $('#divEventsDeleteByRange_msg').html("<span class='msg_error'>"+Vocabulary._MSG["alert_start_date_earlier"]+"</span>");
         return false;
      }

      __doPostBackWith('events_delete_by_range');
      return true;
   }
   
   // Events Users management
   function __EventsUsersManagement(eid){
      __doPostBackWith('events_users_management', eid);
      return true;      
   }  

   // Unassign user from event
   function __EventsUserDelete(eid, euid){
      if(confirm(Vocabulary._MSG["alert_unassign_user"])){			
         __doPostBackWith("events_users_delete", eid, euid);
      }      
      return true;      
   }  

   // Update event
   function __EventsUpdate(eid){
      var event_name = ($('#event_name')) ? trim($('#event_name').val()) : "";
      var event_description = ($('#event_description')) ? trim($('#event_description').val()) : "";

      if(event_name == ''){
         $('#event_name').focus();
         $('#divEventsEdit_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_event_name_empty"]+"</span>");
         return false;
      }else if(event_description == ''){
         $('#event_description').focus();
         $('#divEventsEdit_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_event_descr_empty"]+"</span>");
         return false;         
      }

      __doPostBackWith('events_update', eid);
      return true;
   }   

   // Add single event
   function __AddEvent(){
      var event_name = ($('#event_name')) ? trim($('#event_name').val()) : "";
      var sel_event_name = ($('#sel_event_name')) ? $('#sel_event_name').val() : "";
      var event_description = ($('#event_description')) ? $('#event_description').val() : "";
      var sel_event = __getCheckedValue(document.forms['frmCalendar'].sel_event);

      start_datetime  = $('#event_from_year').val()+$('#event_from_month').val()+$('#event_from_day').val()+$('#event_from_hour').val();
      finish_datetime = $('#event_to_year').val()+$('#event_to_month').val()+$('#event_to_day').val()+$('#event_to_hour').val();
      
      if(sel_event == 'new' && trim(event_name) == ''){
         $('#event_name').focus();
         $('#divAddEvent_msg').html("<span class='msg_error'>"+Vocabulary._MSG["msg_enter_event_name"]+"</span>");
         return false;
      }else	if(sel_event == 'new' && trim(event_description) == ''){
         $('#event_description').focus();
         $('#divAddEvent_msg').html("<span class='msg_error'>"+Vocabulary._MSG["msg_enter_event_description"]+"</span>");
         return false;
      }else	if(sel_event == 'current' && sel_event_name == ''){
         $('#divAddEvent_msg').html("<span class='msg_error'>"+Vocabulary._MSG["msg_event_not_selected"]+"</span>");
         return false;
      }else if(start_datetime >= finish_datetime){
         $('#divAddEvent_msg').html("<span class='msg_error'>"+Vocabulary._MSG["alert_start_date_earlier"]+"</span>");
         return false;
      }
      
      __doPostBackWith('add');
      __HideEventForm('divAddEvent');
      return true;
   }

   // Add single event occurrence
   function __UpdateEvent(){      
      var start_datetime  = $('#event_from_edit_year').val()+$('#event_from_edit_month').val()+$('#event_from_edit_day').val()+$('#event_from_edit_hour').val();
      var finish_datetime = $('#event_to_edit_year').val()+$('#event_to_edit_month').val()+$('#event_to_edit_day').val()+$('#event_to_edit_hour').val();

      if(trim($('#event_description_edit').val()) == ''){
         $('#event_description_edit').focus();
         $('#divEditEvent_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_event_descr_empty"]+"</span>");
         return false;         
      }else if(start_datetime >= finish_datetime){
         $('#divEditEvent_msg').html("<span class='msg_error'>"+Vocabulary._MSG["alert_start_date_earlier"]+"</span>");
         return false;
      }

      __doPostBackWith('update_event');
      __HideEventForm('divEditEvent');
      return true;      
   }

   function __DeleteEvent(eid){			
      if(confirm(Vocabulary._MSG["alert_delete_event"])){			
         __doPostBackWith('delete', eid);
      }
      return false;
   }

   function __EventSelectedDDL(sel_type, time_block){
      var val; 
      // add new event
      if(sel_type == 1){
         $("#sel_category_name").attr("style", "width:230px;display:;");
         $("#sel_event_name").attr("selectedIndex", '0');
         $("#sel_event_name").attr("style", "width:230px;display:none;");
         $("#event_name").attr('disabled', false);
         $("#event_description").attr('disabled', false);

         // change dropdown boxes "To" according to time block size
         val = $('#sel_category_name').val();
      }else{
      // select event from existing
         $('#sel_category_name').attr('selectedIndex', '0');
         $('#sel_category_name').attr('style', 'width:230px;display:none;');
         $('#sel_event_name').attr('style', 'width:230px;display:;');
         
         $('#sel_event_current').attr('checked', true);
         $('#event_name').val('');
         $('#event_name').attr('disabled', true);
         $('#event_description').val('');
         $('#event_description').attr('disabled', true);

         // change dropdown boxes "To" according to time block size
         val = $('#sel_event_name').val();
      }
      
      __CategoryOnChange(val, time_block, true);
   }
   
   // Add events 
   function __EventsAdd(){
      var msg = "";

      var event_name = $('#event_name').val();
      var event_description = $('#event_description').val();
      
      var event_insertion_subtype = document.getElementById('event_insertion_subtype');
      var event_insertion_type    = __getCheckedValue(document.forms['frmCalendar'].event_insertion_type);
      
      var start_datetime = "";
      var finish_datetime = "";
      if(event_insertion_subtype.value == "repeat"){
         start_datetime  = $('#event_from_date_year').val()+$('#event_from_date_month').val()+$('#event_from_date_day').val()+$('#event_from_time_hour').val().replace(":", "");
         finish_datetime = $('#event_to_date_year').val()+$('#event_to_date_month').val()+$('#event_to_date_day').val()+$('#event_to_time_hour').val().replace(":", "");
      }else{
         start_datetime  = $('#event_from_year').val()+$('#event_from_month').val()+$('#event_from_day').val()+$('#event_from_hour').val().replace(":", "");
         finish_datetime = $('#event_to_year').val()+$('#event_to_month').val()+$('#event_to_day').val()+$('#event_to_hour').val().replace(":", "");
      }
      
      if(trim(event_name) == ''){
         document.getElementById('event_name').focus();
         msg = Vocabulary._MSG["err_event_name_empty"];
      }else if(trim(event_description) == ''){
         document.getElementById('event_description').focus();
         msg = Vocabulary._MSG["err_event_descr_empty"];
      }else if(event_insertion_type == 2){
         // event_insertion_type == 2 - add occurrences
         if(start_datetime >= finish_datetime){
            msg = Vocabulary._MSG["alert_start_date_earlier"];
         }else if(event_insertion_subtype.value == "repeat" && !$("#repeat_sun").is(":checked") && !$("#repeat_mon").is(":checked") && !$("#repeat_tue").is(":checked") && !$("#repeat_wed").is(":checked") && !$("#repeat_thu").is(":checked") && !$("#repeat_fri").is(":checked") && !$("#repeat_sat").is(":checked")){
            msg = Vocabulary._MSG["alert_no_week_day_selected"];
         }
      }

      if(msg != ""){
         $('#divEventsAdd_msg').html("<span class='msg_error'>"+msg+"</span>");   
         return false;
      }
      
      __doPostBackWith('events_insert');
      return true;
   }
  
   // Assign user to event 
   function __EventsAssignUser(eid){
      if($('#assigned_user_id').val() == ''){
         $('#divEventUserAssign_msg').html("<span class='msg_error'>"+Vocabulary._MSG["alert_select_user"]+"</span>");
         return false;
      }
      __doPostBackWith('events_users_assign', eid);
      return true;
   }
   
   function __EventInsertionType(val){
      var event_insertion_type = __getCheckedValue(document.forms['frmCalendar'].event_insertion_type);
      var disabled_status = true;
      if(val == 1){
         // select add to list
         if($("#ea_wrapper").css("display") == "block") $("#divEventsAdd_msg").html("");
         $("#ea_wrapper").css("display", "none");
         disabled_status = true;
      }else{
         // select add occurences
         $("#ea_wrapper").css("display", "block");
         disabled_status = false;
      }      
      $("#event_from_hour").attr("disabled", disabled_status);
      $("#event_from_day").attr("disabled", disabled_status);
      $("#event_from_month").attr("disabled", disabled_status);
      $("#event_from_year").attr("disabled", disabled_status);
      $("#event_to_hour").attr("disabled", disabled_status);
      $("#event_to_day").attr("disabled", disabled_status);
      $("#event_to_month").attr("disabled", disabled_status);
      $("#event_to_year").attr("disabled", disabled_status);
   }
   
   // Category changer
   function __CategoryChange(selected_category, view_type){
      $('#hid_selected_category').val((selected_category != null) ? selected_category : '');
      
      __doPostBack('view', view_type, null, null, null);      
   }

   // Change category
   function __CategoryOnChange(val, time_block, force){
      var event_insertion_type = __getCheckedValue(document.forms['frmCalendar'].event_insertion_type);
      var force_ = (force != null) ? force : false;

      // does it works?
      if(event_insertion_type == 2 || force_){
         if(val.indexOf('#') >= 0){

            var event_from_year   = document.getElementById('event_from_year');
            var event_from_month  = document.getElementById('event_from_month');
            var event_from_day    = document.getElementById('event_from_day');
            var event_from_hour   = document.getElementById('event_from_hour');            

            var event_to_year   = document.getElementById('event_to_year');
            var event_to_month  = document.getElementById('event_to_month');
            var event_to_day    = document.getElementById('event_to_day');
            var event_to_hour   = document.getElementById('event_to_hour');            
            
            var duration = val.split('#', 2);
            var steps = (duration[1]/time_block);            
            
            var from_hour_i = event_from_hour.selectedIndex;
            var from_day_i = event_from_day.selectedIndex;
            var from_month_i = event_from_month.selectedIndex;
            var from_year_i = event_from_year.selectedIndex;
            
            var hours_index=0;
            for(i=1;i<=steps;i++){
               if((event_to_hour.options[from_hour_i+i])) hours_index = steps - i;   
            }
            
            if(event_to_hour.options[from_hour_i+steps]){
               event_to_hour.options[from_hour_i+steps].selected = true;
               event_to_year.selectedIndex = from_year_i;
               event_to_month.selectedIndex = from_month_i;
               event_to_day.selectedIndex = from_day_i;               
            }else if(event_to_day.options[from_day_i+1]){
               event_to_day.options[from_day_i+1].selected = true;
               event_to_hour.selectedIndex = hours_index;
            }else if(event_to_month.options[from_month_i+1]){
               event_to_month.options[from_month_i+1].selected = true;
               event_to_day.selectedIndex = 0;
               event_to_hour.selectedIndex = hours_index;
            }else if(event_to_year.options[from_year_i+1]){
               event_to_year.options[from_year_i+1].selected = true;
               event_to_month.selectedIndex = 0;
               event_to_day.selectedIndex = 0;
               event_to_hour.selectedIndex = hours_index;
            }
         }
      }
      return true;
   }
   
   
   /////////////////////////////////////////////////////////////////////////////   
   // USERS
   // Cancel users inserting
   function __UsersCancel(){      
      __doPostBack('view', null, null, null, null, 'users_management');
      return true;
   }

   // Back to users management
   function __UsersBack(event_name){
      __doPostBack('view', null, null, null, null, 'users_management');
      return true;
   }
   
   // View user details
   function __UsersDetails(uid){
      __doPostBack('view', null, null, null, null, 'users_details', '', '', '', '', uid);
      return true;
   }
   
   // Edit user 
   function __UsersEdit(uid){
      __doPostBack('view', null, null, null, null, 'users_edit', '', '', '', '', uid);
      return true;
   }   

   // Add user 
   function __UsersAdd(){
      if(trim($('#first_name').val()) == ''){
         $('#first_name').focus();
         $('#divUsersAdd_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_first_name_empty"]+"</span>");
         return false;
      }else if(trim($('#last_name').val()) == ''){
         $('#last_name').focus();
         $('#divUsersAdd_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_last_name_empty"]+"</span>");
         return false;
      //}else if(trim($('#email').val()) == ''){
      //   $('#email').focus();
      //   $('#divUsersAdd_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_email_empty"]+"</span>");
      //   return false;
      }else if(trim($('#email').val()) != '' && __IsEmail($('#email').val()) == ''){
         $('#email').focus();
         $('#divUsersAdd_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_email_wrong"]+"</span>");
         return false;
      }
      
      __doPostBackWith('users_insert');
      return true;
   }   
   
   // Update user
   function __UsersUpdate(uid){
      if(trim($('#first_name').val()) == ''){
         $('#first_name').focus();
         $('#divUsersEdit_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_first_name_empty"]+"</span>");
         return false;
      }else if(trim($('#last_name').val()) == ''){
         $('#last_name').focus();
         $('#divUsersEdit_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_last_name_empty"]+"</span>");
         return false;
      //}else if(trim($('#email').val()) == ''){
      //   $('#email').focus();
      //   $('#divUsersEdit_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_email_empty"]+"</span>");
      //   return false;
      }else if(trim($('#email').val()) != '' && __IsEmail($('#email').val()) == ''){
         $('#email').focus();
         $('#divUsersEdit_msg').html("<span class='msg_error'>"+Vocabulary._MSG["err_email_wrong"]+"</span>");
         return false;
      }

      __doPostBack('view', null, null, null, null, 'users_update', '', '', '', '', uid);
      return true;
   }   

   // Delete user
   function __UsersDelete(uid){
      if(confirm(Vocabulary._MSG["alert_delete_user"])){			     
         __doPostBack('view', null, null, null, null, 'users_delete', '', '', '', '', uid);
         return true;
      }
      return false;      
   }

   
   /////////////////////////////////////////////////////////////////////////////   
   // CATEGORIES
   
   // Cancel category inserting 
   function __CategoriesCancel(){      
      __doPostBack('view', null, null, null, null, 'categories_management');
      return true;
   }

   // Back to events management
   function __CategoriesBack(event_name){
      __doPostBack('view', null, null, null, null, 'categories_management');
      return true;
   }

   // Add new category
   function __CategoriesAdd(){
      if(trim($("#category_name").val()) == ''){
         $("#category_name").focus();         
         $("#divCategoriesAdd_msg").html("<span class='msg_error'>"+Vocabulary._MSG["err_cat_name_empty"]+"</span>");
         return false;
      }else if(trim($("#category_description").val()) == ''){
         $("#category_description").focus();
         $("#divCategoriesAdd_msg").html("<span class='msg_error'>"+Vocabulary._MSG["err_cat_descr_empty"]+"</span>");
         return false;         
      }
      
      __doPostBackWith('categories_insert');
      return true;
   }
   
   // View category details
   function __CategoriesEdit(cid){
      __doPostBack('view', null, null, null, null, 'categories_edit', '', '', '', cid);
      return true;
   }   
   
   // Update category
   function __CategoriesUpdate(cid){
      if(trim($("#category_name").val()) == ''){
         $("#category_name").focus();
         $("#divCategoriesAdd_msg").html("<span class='msg_error'>"+Vocabulary._MSG["err_cat_name_empty"]+"</span>");
         return false;
      }else if(trim($("#category_description").val()) == ''){
         $("#category_description").focus();
         $("#divCategoriesAdd_msg").html("<span class='msg_error'>"+Vocabulary._MSG["err_cat_descr_empty"]+"</span>");
         return false;
      }

      __doPostBack('view', false, false, false, false, 'categories_update', '', '', '', cid);
      return true;
   }   

   // View category details
   function __CategoriesDetails(cid){
      __doPostBack('view', null, null, null, null, 'categories_details', '', '', '', cid);
      return true;
   }
   
   // Delete category
   function __CategoriesDelete(cid){
      if(confirm(Vocabulary._MSG["alert_delete_category"])){			     
         __doPostBack('view', null, null, null, null, 'categories_delete', '', '', '', cid);
         return true;
      }
      return false;      
   }

   // Change color
   function __ChangeColor(el, color){
      if($("#"+el).length) $("#"+el).css("backgroundColor", color);
      return true;
   }


   /////////////////////////////////////////////////////////////////////////////
   // AUXILIARY
   
   // returns checked value in radio buttons 
   function __getCheckedValue(el) {
      if(!el) return "";
      var radioLength = el.length;
      if(radioLength == undefined)
         if(el.checked) return el.value;
         else return "";
      for(var i = 0; i < radioLength; i++) {
         if(el[i].checked) return el[i].value;
      }
      return "";
   }
   
   // refill days in days dropdown box
   function __refillDaysInMonth(type){
      var years_dll = document.getElementById(type+'year');
      var months_dll = document.getElementById(type+'month');
      var days_dll = document.getElementById(type+'day');
      var selected_day = document.getElementById(type+'day').selectedIndex;
      var day_in_month = __daysInMonth(months_dll.value-1, years_dll.value);
      
      //alert(selected_day);

      var option;
      var day_value;
      var ind = 0;
      if(selected_day > (day_in_month-1)) selected_day = (day_in_month-1);
      
      __cleanDDL(days_dll);
      for(i = 1; i <= day_in_month; i++) {
         option = new Option;
         ind = i - 1;
         
         day_value =  (i < 10) ? '0'+i : i;
         option.text = day_value;
         option.value = day_value;
         days_dll.options[ind] = option;
         if((ind) == selected_day){
            days_dll.options[ind].selected = true;
         }
      }      
   }
   
   function __daysInMonth(month, year){
      return 32 - new Date(year, month, 32).getDate();
   }

   function __cleanDDL(obj){
      var options_length = obj.options.length;
      for (i=0; i<options_length; i++) {
         obj.remove(0);
      }
      obj.options.length = 0;
   }
 
   function __SetFocus(el){
      if(!$("#"+el).is(":disabled")) $("#"+el).focus();
   }
   
   function __toggleCellScroll(el){
      if(document.getElementById("divDayEventContainer"+el)){
         if(document.getElementById("divDayEventContainer"+el).style.overflowY == "scroll"){
            document.getElementById("divDayEventContainer"+el).style.overflowY = "hidden";
            document.getElementById("dayEventLinkShow"+el).style.display = "";
            document.getElementById("dayEventLinkCollapse"+el).style.display = "none";
         }else{
            document.getElementById("divDayEventContainer"+el).style.overflowY = "scroll";
            document.getElementById("dayEventLinkShow"+el).style.display = "none";
            document.getElementById("dayEventLinkCollapse"+el).style.display = "";
         }
      }
   }

   function __switchElements(id1, id2, num, lnk_id1, lnk_id2, store_id, store_val){
      el1 = (document.getElementById(id1)) ? document.getElementById(id1) : null;
      el2 = (document.getElementById(id2)) ? document.getElementById(id2) : null;
      lnk1 = (document.getElementById(lnk_id1)) ? document.getElementById(lnk_id1) : null;
      lnk2 = (document.getElementById(lnk_id2)) ? document.getElementById(lnk_id2) : null;
      store_el = (document.getElementById(store_id)) ? document.getElementById(store_id) : null;
      
      if(el1 && el2){
         if(num == "1"){
            el1.style.display = "";
            el2.style.display = "none";
            if(lnk1) lnk1.style.fontWeight = "bold";
            if(lnk2) lnk2.style.fontWeight = "normal";
         }else{
            el1.style.display = "none";
            el2.style.display = "";
            if(lnk1) lnk1.style.fontWeight = "normal";
            if(lnk2) lnk2.style.fontWeight = "bold";
         }         
      }
      if(store_el) store_el.value = store_val;
   }

   function trim(str, chars) {
      return ltrim(rtrim(str, chars), chars);
   }
    
   function ltrim(str, chars) {
      chars = chars || "\\s";
      return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
   }
    
   function rtrim(str, chars) {
      chars = chars || "\\s";
      return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
   }
   
   function __IsEmail(str){
      var email_pattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+.[a-zA-Z]{2,4}$/;  
      return email_pattern.test(str);  
   }
   

//-->