Fixed #925

3 files changed, 401 insertions, 372 deletions

diff --git a/HISTORY b/HISTORY
index 2e631a39..b19f50ae 100644
--- a/HISTORY
+++ b/HISTORY
@@ -40,6 +40,7 @@ ENH: Ticket#822 - Not receiving emails from TEmailLogRoute (Carl)
 ENH: Ticket#901 - Using TDbDataReader directly as a DataSource of TDataBoundControl's like TDataGrid (Knut)
 ENH: Ticket#911 - prado-cli: Better error message if database connection fails when generating Active Record skeletons (Knut)
 ENH: Ticket#913 - PRADO Copyright notice in HTML source (Carl)
+ENH: Ticket#925 - TTimeTriggeredCallback update interval during callback (Brad, Christophe)
 NEW: Added Prado.Validation.validateControl(id) on client side to validate a specific control (Michael)
 NEW: Added MessageSource_Database to I18N (uses TDbConnection) (Michael)
 NEW: Ticket#935 - Add TDatePicker (Brad, Christophe)
diff --git a/framework/Web/Javascripts/source/prado/activecontrols/activecontrols3.js b/framework/Web/Javascripts/source/prado/activecontrols/activecontrols3.js
index 7ee4c0e6..aa1fd99b 100644
--- a/framework/Web/Javascripts/source/prado/activecontrols/activecontrols3.js
+++ b/framework/Web/Javascripts/source/prado/activecontrols/activecontrols3.js
@@ -1,362 +1,386 @@
-/**

- * Generic postback control.

- */

-Prado.WebUI.CallbackControl = Class.extend(Prado.WebUI.PostBackControl,

-{

-	onPostBack : function(event, options)

-	{

-		var request = new Prado.CallbackRequest(options.EventTarget, options);

-		request.dispatch();

-		Event.stop(event);

-	}

-});

-

-/**

- * TActiveButton control.

- */

-Prado.WebUI.TActiveButton = Class.extend(Prado.WebUI.CallbackControl);

-/**

- * TActiveLinkButton control.

- */

-Prado.WebUI.TActiveLinkButton = Class.extend(Prado.WebUI.CallbackControl);

-

-Prado.WebUI.TActiveImageButton = Class.extend(Prado.WebUI.TImageButton,

-{

-	onPostBack : function(event, options)

-	{

-		this.addXYInput(event,options);

-		var request = new Prado.CallbackRequest(options.EventTarget, options);

-		request.dispatch();

-		Event.stop(event);

-	}

-});

-/**

- * Active check box.

- */

-Prado.WebUI.TActiveCheckBox = Class.extend(Prado.WebUI.CallbackControl,

-{

-	onPostBack : function(event, options)

-	{

-		var request = new Prado.CallbackRequest(options.EventTarget, options);

-		if(request.dispatch()==false)

-			Event.stop(event);

-	}

-});

-

-/**

- * TActiveRadioButton control.

- */

-Prado.WebUI.TActiveRadioButton = Class.extend(Prado.WebUI.TActiveCheckBox);

-

-

-Prado.WebUI.TActiveCheckBoxList = Base.extend(

-{

-	constructor : function(options)

-	{

-		for(var i = 0; i<options.ItemCount; i++)

-		{

-			var checkBoxOptions = Object.extend(

-			{

-				ID : options.ListID+"_c"+i,

-				EventTarget : options.ListName+"$c"+i

-			}, options);

-			new Prado.WebUI.TActiveCheckBox(checkBoxOptions);

-		}

-	}

-});

-

-Prado.WebUI.TActiveRadioButtonList = Prado.WebUI.TActiveCheckBoxList;

-

-/**

- * TActiveTextBox control, handles onchange event.

- */

-Prado.WebUI.TActiveTextBox = Class.extend(Prado.WebUI.TTextBox,

-{

-	onInit : function(options)

-	{

-		this.options=options;

-		if(options['TextMode'] != 'MultiLine')

-			Event.observe(this.element, "keydown", this.handleReturnKey.bind(this));

-		if(this.options['AutoPostBack']==true)

-			Event.observe(this.element, "change", this.doCallback.bindEvent(this,options));

-	},

-

-	doCallback : function(event, options)

-	{

-		var request = new Prado.CallbackRequest(options.EventTarget, options);

-		request.dispatch();

-        if (!Prototype.Browser.IE)

-		    Event.stop(event);

-	}

-});

-

-/**

- * TAutoComplete control.

- */

-Prado.WebUI.TAutoComplete = Class.extend(Autocompleter.Base, Prado.WebUI.TActiveTextBox.prototype);

-Prado.WebUI.TAutoComplete = Class.extend(Prado.WebUI.TAutoComplete,

-{

-	initialize : function(options)

-	{

-		this.options = options;

-		this.hasResults = false;

-		this.baseInitialize(options.ID, options.ResultPanel, options);

-		Object.extend(this.options,

-		{

-			onSuccess : this.onComplete.bind(this)

-		});

-

-		if(options.AutoPostBack)

-			this.onInit(options);

-	},

-

-	doCallback : function(event, options)

-	{

-		if(!this.active)

-		{

-			var request = new Prado.CallbackRequest(this.options.EventTarget, options);

-			request.dispatch();

-			Event.stop(event);

-		}

-	},

-

-	 //Overrides parent implementation, fires onchange event.

-	onClick: function(event)

-	{

-	    var element = Event.findElement(event, 'LI');

-	    this.index = element.autocompleteIndex;

-	    this.selectEntry();

-	    this.hide();

-		Event.fireEvent(this.element, "change");

-	},

-

-	getUpdatedChoices : function()

-	{

-		var options = new Array(this.getToken(),"__TAutoComplete_onSuggest__");

-		Prado.Callback(this.options.EventTarget, options, null, this.options);

-	},

-

-	/**

-	 * Overrides parent implements, don't update if no results.

-	 */

-	selectEntry: function()

-	{

-		if(this.hasResults)

-		{

-			this.active = false;

-			this.updateElement(this.getCurrentEntry());

-			var options = [this.index, "__TAutoComplete_onSuggestionSelected__"];

-			Prado.Callback(this.options.EventTarget, options, null, this.options);

-		}

-	},

-

-	onComplete : function(request, boundary)

-  	{

-  		var result = Prado.Element.extractContent(request.transport.responseText, boundary);

-  		if(typeof(result) == "string")

-		{

-			if(result.length > 0)

-			{

-				this.hasResults = true;

-				this.updateChoices(result);

-			}

-			else

-			{

-				this.active = false;

-				this.hasResults = false;

-				this.hide();

-			}

-		}

-	}

-});

-

-/**

- * Time Triggered Callback class.

- */

-Prado.WebUI.TTimeTriggeredCallback = Base.extend(

-{

-	constructor : function(options)

-	{

-		this.options = Object.extend({ Interval : 1	}, options || {});

-		Prado.WebUI.TTimeTriggeredCallback.register(this);

-	},

-

-	startTimer : function()

-	{

-		setTimeout(this.onTimerEvent.bind(this), 100);

-		if(typeof(this.timer) == 'undefined' || this.timer == null)

-			this.timer = setInterval(this.onTimerEvent.bind(this),this.options.Interval*1000);

-	},

-

-	stopTimer : function()

-	{

-		if(typeof(this.timer) != 'undefined')

-		{

-			clearInterval(this.timer);

-			this.timer = null;

-		}

-	},

-

-	onTimerEvent : function()

-	{

-		var request = new Prado.CallbackRequest(this.options.EventTarget, this.options);

-		request.dispatch();

-	}

-},

-//class methods

-{

-	timers : {},

-

-	register : function(timer)

-	{

-		Prado.WebUI.TTimeTriggeredCallback.timers[timer.options.ID] = timer;

-	},

-

-	start : function(id)

-	{

-		if(Prado.WebUI.TTimeTriggeredCallback.timers[id])

-			Prado.WebUI.TTimeTriggeredCallback.timers[id].startTimer();

-	},

-

-	stop : function(id)

-	{

-		if(Prado.WebUI.TTimeTriggeredCallback.timers[id])

-			Prado.WebUI.TTimeTriggeredCallback.timers[id].stopTimer();

-	}

-});

-

-Prado.WebUI.ActiveListControl = Base.extend(

-{

-	constructor : function(options)

-	{

-		this.element = $(options.ID);

-		if(this.element)

-		{

-			this.options = options;

-			Event.observe(this.element, "change", this.doCallback.bind(this));

-		}

-	},

-

-	doCallback : function(event)

-	{

-		var request = new Prado.CallbackRequest(this.options.EventTarget, this.options);

-		request.dispatch();

-		Event.stop(event);

-	}

-});

-

-Prado.WebUI.TActiveDropDownList = Prado.WebUI.ActiveListControl;

-Prado.WebUI.TActiveListBox = Prado.WebUI.ActiveListControl;

-

-/**

- * Observe event of a particular control to trigger a callback request.

- */

-Prado.WebUI.TEventTriggeredCallback = Base.extend(

-{

-	constructor : function(options)

-	{

-		this.options = options;

-		var element = $(options['ControlID']);

-		if(element)

-			Event.observe(element, this.getEventName(element), this.doCallback.bind(this));

-	},

-

-	getEventName : function(element)

-	{

-		var name = this.options.EventName;

-   		if(typeof(name) == "undefined" && element.type)

-		{

-      		switch (element.type.toLowerCase())

-			{

-          		case 'password':

-		        case 'text':

-		        case 'textarea':

-		        case 'select-one':

-		        case 'select-multiple':

-          			return 'change';

-      		}

-		}

-		return typeof(name) == "undefined"  || name == "undefined" ? 'click' : name;

-    },

-

-	doCallback : function(event)

-	{

-		var request = new Prado.CallbackRequest(this.options.EventTarget, this.options);

-		request.dispatch();

-		if(this.options.StopEvent == true)

-			Event.stop(event);

-	}

-});

-

-/**

- * Observe changes to a property of a particular control to trigger a callback.

- */

-Prado.WebUI.TValueTriggeredCallback = Base.extend(

-{

-	count : 1,

-

-	observing : true,

-

-	constructor : function(options)

-	{

-		this.options = options;

-		this.options.PropertyName = this.options.PropertyName || 'value';

-		var element = $(options['ControlID']);

-		this.value = element ? element[this.options.PropertyName] : undefined;

-		Prado.WebUI.TValueTriggeredCallback.register(this);

-		this.startObserving();

-	},

-

-	stopObserving : function()

-	{

-		clearTimeout(this.timer);

-		this.observing = false;

-	},

-

-	startObserving : function()

-	{

-		this.timer = setTimeout(this.checkChanges.bind(this), this.options.Interval*1000);

-	},

-

-	checkChanges : function()

-	{

-		var element = $(this.options.ControlID);

-		if(element)

-		{

-			var value = element[this.options.PropertyName];

-			if(this.value != value)

-			{

-				this.doCallback(this.value, value);

-				this.value = value;

-				this.count=1;

-			}

-			else

-				this.count = this.count + this.options.Decay;

-			if(this.observing)

-				this.time = setTimeout(this.checkChanges.bind(this),

-					parseInt(this.options.Interval*1000*this.count));

-		}

-	},

-

-	doCallback : function(oldValue, newValue)

-	{

-		var request = new Prado.CallbackRequest(this.options.EventTarget, this.options);

-		var param = {'OldValue' : oldValue, 'NewValue' : newValue};

-		request.setCallbackParameter(param);

-		request.dispatch();

-	}

-},

-//class methods

-{

-	timers : {},

-

-	register : function(timer)

-	{

-		Prado.WebUI.TValueTriggeredCallback.timers[timer.options.ID] = timer;

-	},

-

-	stop : function(id)

-	{

-		Prado.WebUI.TValueTriggeredCallback.timers[id].stopObserving();

-	}

-});

+/**
+ * Generic postback control.
+ */
+Prado.WebUI.CallbackControl = Class.extend(Prado.WebUI.PostBackControl,
+{
+	onPostBack : function(event, options)
+	{
+		var request = new Prado.CallbackRequest(options.EventTarget, options);
+		request.dispatch();
+		Event.stop(event);
+	}
+});
+
+/**
+ * TActiveButton control.
+ */
+Prado.WebUI.TActiveButton = Class.extend(Prado.WebUI.CallbackControl);
+/**
+ * TActiveLinkButton control.
+ */
+Prado.WebUI.TActiveLinkButton = Class.extend(Prado.WebUI.CallbackControl);
+
+Prado.WebUI.TActiveImageButton = Class.extend(Prado.WebUI.TImageButton,
+{
+	onPostBack : function(event, options)
+	{
+		this.addXYInput(event,options);
+		var request = new Prado.CallbackRequest(options.EventTarget, options);
+		request.dispatch();
+		Event.stop(event);
+	}
+});
+/**
+ * Active check box.
+ */
+Prado.WebUI.TActiveCheckBox = Class.extend(Prado.WebUI.CallbackControl,
+{
+	onPostBack : function(event, options)
+	{
+		var request = new Prado.CallbackRequest(options.EventTarget, options);
+		if(request.dispatch()==false)
+			Event.stop(event);
+	}
+});
+
+/**
+ * TActiveRadioButton control.
+ */
+Prado.WebUI.TActiveRadioButton = Class.extend(Prado.WebUI.TActiveCheckBox);
+
+
+Prado.WebUI.TActiveCheckBoxList = Base.extend(
+{
+	constructor : function(options)
+	{
+		for(var i = 0; i<options.ItemCount; i++)
+		{
+			var checkBoxOptions = Object.extend(
+			{
+				ID : options.ListID+"_c"+i,
+				EventTarget : options.ListName+"$c"+i
+			}, options);
+			new Prado.WebUI.TActiveCheckBox(checkBoxOptions);
+		}
+	}
+});
+
+Prado.WebUI.TActiveRadioButtonList = Prado.WebUI.TActiveCheckBoxList;
+
+/**
+ * TActiveTextBox control, handles onchange event.
+ */
+Prado.WebUI.TActiveTextBox = Class.extend(Prado.WebUI.TTextBox,
+{
+	onInit : function(options)
+	{
+		this.options=options;
+		if(options['TextMode'] != 'MultiLine')
+			Event.observe(this.element, "keydown", this.handleReturnKey.bind(this));
+		if(this.options['AutoPostBack']==true)
+			Event.observe(this.element, "change", this.doCallback.bindEvent(this,options));
+	},
+
+	doCallback : function(event, options)
+	{
+		var request = new Prado.CallbackRequest(options.EventTarget, options);
+		request.dispatch();
+        if (!Prototype.Browser.IE)
+		    Event.stop(event);
+	}
+});
+
+/**
+ * TAutoComplete control.
+ */
+Prado.WebUI.TAutoComplete = Class.extend(Autocompleter.Base, Prado.WebUI.TActiveTextBox.prototype);
+Prado.WebUI.TAutoComplete = Class.extend(Prado.WebUI.TAutoComplete,
+{
+	initialize : function(options)
+	{
+		this.options = options;
+		this.hasResults = false;
+		this.baseInitialize(options.ID, options.ResultPanel, options);
+		Object.extend(this.options,
+		{
+			onSuccess : this.onComplete.bind(this)
+		});
+
+		if(options.AutoPostBack)
+			this.onInit(options);
+	},
+
+	doCallback : function(event, options)
+	{
+		if(!this.active)
+		{
+			var request = new Prado.CallbackRequest(this.options.EventTarget, options);
+			request.dispatch();
+			Event.stop(event);
+		}
+	},
+
+	 //Overrides parent implementation, fires onchange event.
+	onClick: function(event)
+	{
+	    var element = Event.findElement(event, 'LI');
+	    this.index = element.autocompleteIndex;
+	    this.selectEntry();
+	    this.hide();
+		Event.fireEvent(this.element, "change");
+	},
+
+	getUpdatedChoices : function()
+	{
+		var options = new Array(this.getToken(),"__TAutoComplete_onSuggest__");
+		Prado.Callback(this.options.EventTarget, options, null, this.options);
+	},
+
+	/**
+	 * Overrides parent implements, don't update if no results.
+	 */
+	selectEntry: function()
+	{
+		if(this.hasResults)
+		{
+			this.active = false;
+			this.updateElement(this.getCurrentEntry());
+			var options = [this.index, "__TAutoComplete_onSuggestionSelected__"];
+			Prado.Callback(this.options.EventTarget, options, null, this.options);
+		}
+	},
+
+	onComplete : function(request, boundary)
+  	{
+  		var result = Prado.Element.extractContent(request.transport.responseText, boundary);
+  		if(typeof(result) == "string")
+		{
+			if(result.length > 0)
+			{
+				this.hasResults = true;
+				this.updateChoices(result);
+			}
+			else
+			{
+				this.active = false;
+				this.hasResults = false;
+				this.hide();
+			}
+		}
+	}
+});
+
+/**
+ * Time Triggered Callback class.
+ */
+Prado.WebUI.TTimeTriggeredCallback = Base.extend(
+{
+	constructor : function(options)
+	{
+		this.options = Object.extend({ Interval : 1	}, options || {});
+		Prado.WebUI.TTimeTriggeredCallback.register(this);
+	},
+
+	startTimer : function()
+	{
+		setTimeout(this.onTimerEvent.bind(this), 100);
+		if(typeof(this.timer) == 'undefined' || this.timer == null)
+			this.timer = setInterval(this.onTimerEvent.bind(this),this.options.Interval*1000);
+	},
+
+	stopTimer : function()
+	{
+		if(typeof(this.timer) != 'undefined')
+		{
+			clearInterval(this.timer);
+			this.timer = null;
+		}
+	},
+	
+	resetTimer : function()
+	{
+		if(typeof(this.timer) != 'undefined')
+		{
+			clearInterval(this.timer);
+			this.timer = null;
+			this.timer = setInterval(this.onTimerEvent.bind(this),this.options.Interval*1000);
+		}
+	},
+
+	onTimerEvent : function()
+	{
+		var request = new Prado.CallbackRequest(this.options.EventTarget, this.options);
+		request.dispatch();
+	},
+	
+	setInterval : function(value)
+	{
+		if (this.options.Interval != value){
+			this.options.Interval = value;
+			this.resetTimer();
+		}
+	}
+},
+//class methods
+{
+	timers : {},
+
+	register : function(timer)
+	{
+		Prado.WebUI.TTimeTriggeredCallback.timers[timer.options.ID] = timer;
+	},
+
+	start : function(id)
+	{
+		if(Prado.WebUI.TTimeTriggeredCallback.timers[id])
+			Prado.WebUI.TTimeTriggeredCallback.timers[id].startTimer();
+	},
+
+	stop : function(id)
+	{
+		if(Prado.WebUI.TTimeTriggeredCallback.timers[id])
+			Prado.WebUI.TTimeTriggeredCallback.timers[id].stopTimer();
+	},
+	
+	setInterval : function (id,value)
+	{
+		if(Prado.WebUI.TTimeTriggeredCallback.timers[id])
+			Prado.WebUI.TTimeTriggeredCallback.timers[id].setInterval(value);
+	}
+});
+
+Prado.WebUI.ActiveListControl = Base.extend(
+{
+	constructor : function(options)
+	{
+		this.element = $(options.ID);
+		if(this.element)
+		{
+			this.options = options;
+			Event.observe(this.element, "change", this.doCallback.bind(this));
+		}
+	},
+
+	doCallback : function(event)
+	{
+		var request = new Prado.CallbackRequest(this.options.EventTarget, this.options);
+		request.dispatch();
+		Event.stop(event);
+	}
+});
+
+Prado.WebUI.TActiveDropDownList = Prado.WebUI.ActiveListControl;
+Prado.WebUI.TActiveListBox = Prado.WebUI.ActiveListControl;
+
+/**
+ * Observe event of a particular control to trigger a callback request.
+ */
+Prado.WebUI.TEventTriggeredCallback = Base.extend(
+{
+	constructor : function(options)
+	{
+		this.options = options;
+		var element = $(options['ControlID']);
+		if(element)
+			Event.observe(element, this.getEventName(element), this.doCallback.bind(this));
+	},
+
+	getEventName : function(element)
+	{
+		var name = this.options.EventName;
+   		if(typeof(name) == "undefined" && element.type)
+		{
+      		switch (element.type.toLowerCase())
+			{
+          		case 'password':
+		        case 'text':
+		        case 'textarea':
+		        case 'select-one':
+		        case 'select-multiple':
+          			return 'change';
+      		}
+		}
+		return typeof(name) == "undefined"  || name == "undefined" ? 'click' : name;
+    },
+
+	doCallback : function(event)
+	{
+		var request = new Prado.CallbackRequest(this.options.EventTarget, this.options);
+		request.dispatch();
+		if(this.options.StopEvent == true)
+			Event.stop(event);
+	}
+});
+
+/**
+ * Observe changes to a property of a particular control to trigger a callback.
+ */
+Prado.WebUI.TValueTriggeredCallback = Base.extend(
+{
+	count : 1,
+
+	observing : true,
+
+	constructor : function(options)
+	{
+		this.options = options;
+		this.options.PropertyName = this.options.PropertyName || 'value';
+		var element = $(options['ControlID']);
+		this.value = element ? element[this.options.PropertyName] : undefined;
+		Prado.WebUI.TValueTriggeredCallback.register(this);
+		this.startObserving();
+	},
+
+	stopObserving : function()
+	{
+		clearTimeout(this.timer);
+		this.observing = false;
+	},
+
+	startObserving : function()
+	{
+		this.timer = setTimeout(this.checkChanges.bind(this), this.options.Interval*1000);
+	},
+
+	checkChanges : function()
+	{
+		var element = $(this.options.ControlID);
+		if(element)
+		{
+			var value = element[this.options.PropertyName];
+			if(this.value != value)
+			{
+				this.doCallback(this.value, value);
+				this.value = value;
+				this.count=1;
+			}
+			else
+				this.count = this.count + this.options.Decay;
+			if(this.observing)
+				this.time = setTimeout(this.checkChanges.bind(this),
+					parseInt(this.options.Interval*1000*this.count));
+		}
+	},
+
+	doCallback : function(oldValue, newValue)
+	{
+		var request = new Prado.CallbackRequest(this.options.EventTarget, this.options);
+		var param = {'OldValue' : oldValue, 'NewValue' : newValue};
+		request.setCallbackParameter(param);
+		request.dispatch();
+	}
+},
+//class methods
+{
+	timers : {},
+
+	register : function(timer)
+	{
+		Prado.WebUI.TValueTriggeredCallback.timers[timer.options.ID] = timer;
+	},
+
+	stop : function(id)
+	{
+		Prado.WebUI.TValueTriggeredCallback.timers[id].stopObserving();
+	}
+});
diff --git a/framework/Web/UI/ActiveControls/TTimeTriggeredCallback.php b/framework/Web/UI/ActiveControls/TTimeTriggeredCallback.php
index a1410364..3dee5c59 100644
--- a/framework/Web/UI/ActiveControls/TTimeTriggeredCallback.php
+++ b/framework/Web/UI/ActiveControls/TTimeTriggeredCallback.php
@@ -49,6 +49,10 @@ class TTimeTriggeredCallback extends TCallback
 		if($interval <= 0)
 			throw new TConfigurationException('callback_interval_be_positive', $this->getID());
 		$this->setViewState('Interval', $interval, 1);
+		if ($this->getActiveControl()->canUpdateClientSide()){
+			$client = $this->getPage()->getCallbackClient();
+			$client->callClientFunction('Prado.WebUI.TTimeTriggeredCallback.setInterval', array($this, $interval));
+		}
 	}
 
 	/**
@@ -56,10 +60,8 @@ class TTimeTriggeredCallback extends TCallback
 	 */
 	public function startTimer()
 	{
-		$id = $this->getClientID();
-		$code = "Prado.WebUI.TTimeTriggeredCallback.start('{$id}');";
-		$cs = $this->getPage()->getClientScript();
-		$cs->registerEndScript("{$id}:start", $code);
+		$client = $this->getPage()->getCallbackClient();
+		$client->callClientFunction('Prado.WebUI.TTimeTriggeredCallback.start', array($this));
 	}
 
 	/**
@@ -67,10 +69,8 @@ class TTimeTriggeredCallback extends TCallback
 	 */
 	public function stopTimer()
 	{
-		$id = $this->getClientID();
-		$code = "Prado.WebUI.TTimeTriggeredCallback.stop('{$id}');";
-		$cs = $this->getPage()->getClientScript();
-		$cs->registerEndScript("{$id}:stop", $code);
+		$client = $this->getPage()->getCallbackClient();
+		$client->callClientFunction('Prado.WebUI.TTimeTriggeredCallback.stop', array($this));
 	}
 
 	/**
@@ -110,8 +110,12 @@ class TTimeTriggeredCallback extends TCallback
 		parent::render($writer);
 		$this->getActiveControl()->registerCallbackClientScript(
 			$this->getClientClassName(), $this->getTriggerOptions());
-		if($this->getStartTimerOnLoad())
-			$this->startTimer();
+		if($this->getStartTimerOnLoad()){
+			$id = $this->getClientID();
+			$code = "Prado.WebUI.TTimeTriggeredCallback.start('{$id}');";
+			$cs = $this->getPage()->getClientScript();
+			$cs->registerEndScript("{$id}:start", $code);
+		}
 	}
 
 	/**