I have edited the grid.base.js file populate function and added:

case "xmlvar":
addXmlData(ts.p.datastr,ts.grid.bDiv);
ts.p.datastr = null;
ts.p.datatype = "local";
if(loadComplete) loadComplete();
break;

with datastr as my javascript xml document but nothing happens… Am I close to any solution…

No need to do that.

You just need to pass xmlObj.responseText as data string

Kind regards
Tony

Use onPaging event – this even accept a parameter which button is clicked – i.e. first, last, prev, next – something like

onPaging: function(sButt) {
…
}

This event fires when the page button is clicked and before populating a data.

Regards

Really do not understand – please describe simple.
Maybe you can use poasData extension – see docs

Regards
Tony