When a new row is active, I want to fill a textbox outside of the grid with the value of a specifi cell. Here is what I have so far:

function gridMembers_AfterRowActivateHandler(gridName, rowId){

var row = igtbl_getRowById(rowId);
var cell = row.getCell(0).getValue(); //Member ID

alert(cell);
}

I can get the alert to appear every time I select a row...and it displays exactly what I'm looking for, but I can't seem to get it to change the value of a textbox on the page with the same thing. I have tried it several ways and just can't seem to get it to work.

This is how I have things laid out on my page:

<form name="frm">
   <WARP>
      <UltraWebGrid>
      </UltraWebGrid>
      <asp:TextBox ID="TextBox1" runat="server" name="TextBox1"></asp:TextBox>
   </WARP>
</form>