I'm having some problems to change the condition for up/down arrow.
How can I change this condition, this is the code that I try:

Code:
function f() {
    this.setAddInOptions("colType","trendArrow",
     {
        includeValue: true,
        good: function(tgt, format, st){return tgt<20000 ? "true": "false";},        
        valueFormat: function(tgt, format, st) { return "$ " + sprintf(format, tgt) ;}
     }  
 );
}