Section 1
//bgm_select (bgm_select)
package {
	import flash.media.*;

	public dynamic class bgm_select extends Sound {

	}
}//package 
Section 2
//DocumentClass_select (DocumentClass_select)
package {
	import flash.display.*;

	public class DocumentClass_select extends MovieClip {

		public var sound:bgm_select;

		public function DocumentClass_select(){
			this.sound = new bgm_select();
		}
	}
}//package