 
 import flash.events.Event;
 import flash.events.MouseEvent;
+import mx.core.mx_internal;
 
 import spark.components.supportClasses.ToggleButtonBase;
+
+use namespace mx_internal;
 
 /**
  *  @copy spark.components.supportClasses.GroupBase#style:symbolColor

public class CheckBox extends ToggleButtonBase
{
    include "../core/Version.as";

    //--------------------------------------------------------------------------
    //

    {
        super();
    }
    
     /**
     *  @private
     */
    override protected function initializeAccessibility():void
    {
        if (CheckBox.createAccessibilityImplementation != null)
            CheckBox.createAccessibilityImplementation(this);
    }
    
}

}
