Make Handsontable droppable

Hi Friends,

I have Table like this.

var oExcelGrid = new ExcelGrid("oExcelGrid", {

data : "{/data}",

options : {

minSpareRows : 100,

colHeaders : true,

rowHeaders : true,

contextMenu : true

});

Now I try to make it droppable with:

$("#oExcelGrid").droppable({

drop: function(event, ui) {

}});

But it tells me all the time.

undefined is not a function.

Can somebody help me to make it dropable?

Thanks in advance.

Rg. Joerg