Unable to update date range of i5Chart

Hi,

See the following code. Anyone have an idea why the i5Chart is not updating?

//================================================

//selDate contains the timestamp of a selected data point

var sDate=document.SMXbar.dateAdd(selDate, "MM/dd/yyyy HH:mm:ss", "", -3600);

var eDate=document.SMXbar.dateAdd(selDate, "MM/dd/yyyy HH:mm:ss", "", 3600)

//This iChart Applet works fine

1. document.PITagiChart.getQueryObject().setStartDate(sDate);
2. document.PITagiChart.getQueryObject().setEndDate(eDate);
3. document.PITagiChart.updateChart(true);

//This i5Chart does not update; no errors are thrown

//The alert() contents return valid data

var qObj=PITagi5Chart.getQueryObject();

alert(qObj.getStartDate() + " to " + qObj.getEndDate());

1. qObj.setStartDate(sDate);
2. qObj.setEndDate(eDate);

alert(qObj.getStartDate() + " to " + qObj.getEndDate());

//alert(qObj.isTimeBasedQuery());

PITagi5Chart.update(true); //Nothing happens here

//==============================================

A couple of additional comments..

V15 SP3 Patch 7.  NW 7.4. Java 6 u45.  IE11.

The i5Chart’s time control bar contains blanks for the dates and NaN:NaN:NaN for the times.  Saw mention of this in earlier threads – supposed to have been fixed in v14?

If I manually set the date & times, I can manipulate the chart range using the control slider and buttons. 

Thanks in advance for any direction...

Paul