Click "Row", show "ItemNumber"

When i use this line i want it only to show my "ItemNumber" not every cellname, is this possible?

Can i use this to help me with my problem?
obj.onCellClicked = function(event, col, row){window.status = this.getCellText(col, row)};

I want to use it when you select a row it changes my ASP variable
"vn" to the selected "ItemNumber"

Somthing like this:

If seleceted row Then
vn=selectItemNumber
....

I´m a java beginner, hope somone can help me with exelent system.