How to edit cell from outside the function

[Ganesh]

Hi,

I want to edit my cell from outside the function. That means in different function not with in the same function. For editing the cell within the function I used the following code.

data[1][1] = "gun";
$( "#performance_tab_main" ).pqGrid( "refreshCell", { rowIndx: 1, dataIndx: 'speed' } );

How can i edit the cell from outside/another function.