Access table values in current row in Adobe Form

[dario_fiorillo49]

Hello,
I need to modify an Adobe Form with a table. This is what I need to do: if field CARTONS_NUM_H = 0 and field STAWN_DESC is blank on the same row, than CARTONS_NUM_H must be blank.

I am using the following script on CARTONS_NUM_H cell, but it only works if I use || instead of &&. I do not know Javascript, so I am not able to get STAWN_DESC value in current row:

if( this.rawValue == "0" && Upper_Table.Table.T_ITEM.DATA.STAWN_DESC.rawValue == "" )
{
this.rawValue = "";
}

Any advice?Thank you