how to get Access Gridview Row Column Name?

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Javascript

Gridview

var grid=document.getelementbyid('Gridname');


var text=grid.rows[1].cells[1].innerHTML;


Here instead of Cells[1] i want to use something like cells['txt_Orderno'];


in cell[1] i am using template field textbox;

the id of that textbox is txt_Orderno.

So my problem is instead of using index of cell i want use column name of bound filed or template filed id. How to achieve this???