dynamic class PejieMenu extends MovieClip{
　var offset = 75;
　var base = 256;
　var weight = 36;
　var bar = 75;

　function onLoad(){
　　//描画点３つと制御点２つ。描画用クリップを準備
　　var depth = 100;
　　this.attachMovie("pointg","p1",depth++,{_y:base});
　　this.attachMovie("point" ,"drag",depth++,{_x:offset,_y:base-weight});
　　this.attachMovie("pointg","p2",depth++,{_y:base});
　　this.attachMovie("pointb","c1",depth,{});
　　this.attachMovie("pointb","c2",depth++,{});
　　createEmptyMovieClip("draw", depth++);
　}

　function onEnterFrame(){
　　// this.dragの座標に応じて、他の点の座標を変える。テキトー。
　　var fat = (base - this.drag._y) * 0.5;
　　this.c1._y = this.drag._y + ( offset - this.drag._x );
　　this.c2._y = this.drag._y - ( offset - this.drag._x );
　　this.c1._x = this.drag._x - (bar+fat);
　　this.c2._x = this.drag._x + (bar+fat);
　　this.p1._x = offset-bar + fat*0.3;
　　this.p2._x = offset+bar - fat*0.3;

　　//描画用クリップに描画。
　　with (this.draw) {
　　　　clear();
　　　　beginFill(0x66DD80);
　　　　moveTo( this.p1._x, this.p1._y );
　　　　curveTo( this.c1._x, this.c1._y, this.drag._x, this.drag._y );
　　　　curveTo( this.c2._x, this.c2._y, this.p2._x, this.p2._y );
　　　　lineTo( this.p1._x, this.p1._y );
　　　　endFill();
　　}
　}
}