I added a button to move to the next frame (scrollTo)

Designed (HTML5 Canvas Document)
Page long
Its length 7206 px
I added a button to move to the next frame

this.button2.addEventListener("click", fl_ClickToGoToAndStopAtFrame_2.bind(this));
function fl_ClickToGoToAndStopAtFrame_2() {
//this.stage.x=0;
//this.stage.y=0;
this.gotoAndStop(5);
}

It goes, but it is stop at the end of the page ?? why 

Not at the front of the page, but show at the end of the page ??