package druva.vini{
	import flash.system.Capabilities;
	import flash.net.*;
	import flash.display.*;
	import flash.text.TextField;

	public class SystemCap extends Sprite {

		public function SystemCap() {
			var field:TextField = new TextField();
			field.border = true;
			field.text = hasEmbeddedVide() ;
			field.background=true;
			addChild(field);

		}
		public static function hasEmbeddedVideo() {
			return flash.system.Capabilities.hasEmbeddedVideo;
		}

	}
}

While trying to delete any element from i am not able to find any function

      unset($arr[array_search($element, $arr)]);