Help with AS3.0

[Kottore]

I'm trying to make it appear a line from one point to another with the following code*ActionScript 3.0 Code:

Código:

function some(evt:MouseEvent):void{
var trapezoid:Shape = new Shape();
trapezoid.graphics.lineStyle(2, 0xFFD700, 1, false, LineScaleMode.VERTICAL, CapsStyle.NONE, JointStyle.MITER, 10);
trapezoid.graphics.lineTo(evt.stageX, evt.stageY);
this.addChild(trapezoid);}
stage.addEventListener(MouseEvent.MOUSE_MOVE, some);

And everything works fine but I could not find a way to just leave the last line that detects the event*

Would appreciate your help since I'm something new in AS3*

Thanks in advance