setValue not call change event

[Xandros]

SmartClient v8

I have the follow button:

isc.ImgButton.create({
			    ID:"historyLogPrevDayImg",
			    autoDraw:false,
			    src:"icons/prev.png", size:16,
			    prompt:"Go to previous day",
			    showFocused:false, showRollOver:false, showDown:false,
			    click : function(){			
					historyLogDayChoseForm.setValue("day",new Date(historyLogDayChoseForm.getValue("day").getTime()-86400000));	
				}
			});

and the follow form for data chose

isc.DynamicForm.create({
				ID:"historyLogDayChoseForm",	
		    	fields : [
		  		    {name: "day", type:"date", useTextField:false, title:"Day", 
			  		 	change:function(form, item, value, oldValue){
		  		    		historyLogList.fetchData({
								history_job_group:jobList.getSelectedRecord()?jobList.getSelectedRecord().job_group:null,
								history_job_name:jobList.getSelectedRecord()?jobList.getSelectedRecord().job_name:null,
								history_job_execution_time:value
							});	
		    			}
					}
				]
			});

the event "change" on form works correctly when I use picker or day/month/hear combo, but NOT when I click on my "historyLogDayChoseForm" button. According to documentation (http://www.smartclient.com/docs/7.0r...micForm.values) : "As the user manipulates form items to change values, change events fire on the items and on the form as a whole" is the correct behaviour when programmatically change the form field value.

Thanks.

[Xandros]

Can someone help me with this problem? I'm wronging something or misunderstanding?

Thanks a lot!