[flexcoders] flex multiple filter function using text input, combobox and date range

[stinas...@yahoo.com [flexcoders]]

Hello Guys, i have used multiple filter functions before but i have never used 
one that involves a date range. I have an arraycollection with items (title, 
entity and signature_date). i would like to filter the results of the array 
collection based on those 3 fields of data. 
 

 i want to have it in such a way that signature_date is filtered based on date 
range, so on my UI i have a text input (id= titleSearch), 
combobox(entitySearch) and 2 data fields (sDate and eDate).
 

 I can do a filter based on the text input and combobox, but i don't know how 
to apply the date fields in the filter function. 
 

 Can some please help guide me on this. Below is sample code
 

 /************* start filtering ***********************/
 private var docTitle:String="title";
 private var selectedEntity:String="--- SELECT ENTITY ---";
 

 private function filterGrid():void
 {
 collectionAr.filterFunction=myFilterFunction;
 collectionAr.refresh();
 }
 

 private function myFilterFunction(item:Object):Boolean
 {
 return (item[docTitle].match(new RegExp(titleSearch.text, 'i'))) && 
(item.entity == selectedEntity || selectedEntity == "--- SELECT ENTITY ---");
 }
 

 private function titleChangeHandler(event:Event):void
 {
 if (titleSearch.text != '')
 {
 filterGrid();
 }
 else
 {
 filterReset()
 }
 

 docs.selectedIndex=0;
 }
 

 private function entityChangeHandler(event:Event):void
 {
 if (entitySearch.selectedItem != null)
 selectedEntity=entitySearch.selectedLabel;
 filterGrid();
 docs.selectedIndex=0;
 }
 

 private function filterReset():void
 {
 

 collectionAr.filterFunction=null;
 collectionAr.refresh();
 

 }