How to set ActiveView to an Object tag

Hi

I have a JSP and it contains an OBJECT tag:
<object id="PivotTable1" classid="CLSID:0002E55A-0000-0000-C000-000000000046" VIEWASTEXT></object>

There is a java script wchich reseives all the data required to create a dinamic chart graphic and calls a VB script.

What I'm doing in java script:
...
var obj=document.getElementById("PivotTable1");
...
//and then VB function is called with other data as well
process(obj,.....);

At the first line in VB method I'm trying:
Set oView = pivotTableObj.ActiveView
but it fails saying that no such method or property.

Can you help me to set this ActiveView so after all processing is done in VB I can see the chart there in my web page.

Note. The previous version of the code was like this:
var obj=document.getElementById("PivotTable1").object;


Thank you.