jQuery Grid Plugin - jqGrid

Hi,

I have a search form I generated using the filterGrid option in JqGrid. I want to add a Javascript logic which is invoked before I submit the Search form. I have added a method which is invoked by the beforeSubmit property for the filterGrid. It goes into the method before submitting, but always submits the form regardless of the value returned.

 Have any of you guys implemented anything like this before. Any help on this will be really appreciated.

 Code:

 $("#search").filterGrid("#resultsGrid",{gridModel:true,gridNames:true,enableSearch:true,formtype:"vertical",buttonclass:"submitButton",enableClear:true,beforeSearch:validateDate});

 function validateDate(dateDiff){

             if(daysDiff < 0){

                    return [false,"Message"];

                }                            

                return [true,""];

}