Problem in SearchRecord Length of Schedular Script

Hi All,
we are using schedularScript inorder to Search for Salesorder with filteration on a boolean field whose value is equal to true,so when we do searching on that records on that particular criteria we actually have one record in database but our search result length is always returning  a garbage value.
AnyHelp on this is Appreciated.

our code is:
function SCHDSubmit()
{
  var filters = new Array();
    filters[0] = new nlobjSearchFilter('custbody_exec_location_script', null, 'is', 'T');

var searchresults = nlapiSearchRecord( 'salesorder', null, filters, null);

for (var i = 0; i < searchresults.length ; i++)
{

var result= searchresults[i];
nlapiLogExecution('DEBUG', 'length', searchresults.length);