jQuery Grid Plugin - jqGrid

How can I pass the value of a different column than the one I've selected?

I'm trying to pass the value of two columns in a url.  How do I reference the second column?

This is my current code:

    onCellSelect: function(rowid,iCol,cellcontent){
    // because of hidden columns we need to calculate which are hidden or not to put the link on the waybill number
    var hidesite = <cfoutput>#session.myGridSHP_Site_Name#</cfoutput>;
    var hideinvoice = <cfoutput>#session.myGridshp_cust_ref_no#</cfoutput>;
    var hideacctname = <cfoutput>#session.myGridSHP_Acct_Name#</cfoutput>;
    var hideacctemail = <cfoutput>#session.myGridSHP_Acct_Email#</cfoutput>;
    var totcol = 6 + hidesite + hideinvoice + hideacctname + hideacctemail;
// The carrier col is the next one always
    var carriercol = totcol + 1;
          
     //create link from these columns two columns (waybillno is WB, C is carrier)
     if (iCol == totcol)
       {window.location.href = "trackit.cfm?WB="+cellcontent+"&C="+carriercol.cellcontent;}
    },

This is what I get now:

http://localhost:8500/pti/PARV.....=undefined

Thanks Tony