[amibroker] Dynamically setting RangeFromDate to todays date

[ta]

Does anybody know how to dynamically set RangeFromDate to Todays date
(computer's current date).  I am using the following code to run an explore.
The problem is that it also picks up symbols that no longer trade . TIA

 

/********************Amibroker open to database***********************/

AB = new ActiveXObject("Broker.Application");

AB.LoadDatabase("z:\\Amibroker\\Data");

AB.Visible = true;

 

/* retrieve automatic analysis object */

AA = AB.Analysis;

 

/* Explore over symbols and all quotes*/

AA.ClearFilters();

AA.ApplyTo = 0; // use all symbols

AA.RangeN = 1; // Last Bar

//AA.RangeFromDate = 

//AA.RangeToDate = 

 

AA.LoadFormula("c:\\amibroker\\Formulas\\1Production\\O2.afl");

AA.Explore();

AA.Export("c:\\Amibroker\\CSV FILES\\O2.csv");