setCellExcellType doesn't work

Hi all,
I have a table that just part of cells are editable. Than I’m trying to use setCellExcellType(row, index, type). But seems that it has no effect, all the cells are still editable.
Here is the code:

mygrid = new dhtmlXGridObject("table");
mygrid.setSkin("light");
mygrid.enableResizing(true);
mygrid.attachEvent("onRowSelect", doOnRowSelected);
mygrid.setColSorting("");
myGrid.setHeader("c1, c2, c3, c4, c5");
mygrid.enableMultiselect(false);
mygrid.init();

mygrid.parse('<?xml version="1.0" encoding="UTF-8" standalone="yes"?><rows><row id="0"><cell>dimension1</cell><cell>1</cell><cell>available</cell><cell>active</cell><cell>bank payment</cell></row><row id="1"><cell>dimension1</cell><cell>2</cell><cell>available</cell><cell>cancelled</cell><cell>bank payment</cell></row></rows>');
mygrid.cells("0","7").cell.className="grid-blue-txt";
mygrid.cells("1","0").cell.className="grid-gray-txt";
mygrid.cells("1","1").cell.className="grid-gray-txt";
mygrid.cells("1","2").cell.className="grid-gray-txt";
mygrid.cells("1","3").cell.className="grid-gray-txt";
mygrid.cells("1","4").cell.className="grid-gray-txt";
mygrid.setCellExcellType("0",0,"ro");
mygrid.setCellExcellType("0",1,"ro");
...

I tryed to find some documentation/examples/topics about the setCellExcellType method, but the search returned nothing. Does this method works for anybody?

<row id="0"><cell>dimension1</cell><cell>1</cell><cell>available</cell><cell>active</cell><cell>bank payment</cell></row>

row id shouldn’t be zero. Please define any other available number.

The id of the row is just a string. Does this string can not be “0”? Or you mean the row index?

Please set the ids of your rows to “1” and “2” resp.

Row’s id cannot be “0”.

mygrid.parse('<?xml version="1.0" encoding="UTF-8" standalone="yes"?><rows><row id="1"><cell>dimension1</cell><cell>1</cell><cell>available</cell><cell>active</cell><cell>bank payment</cell></row><row id="2"><cell>dimension1</cell><cell>2</cell><cell>available</cell><cell>cancelled</cell><cell>bank payment</cell></row></rows>');