var element = document.getElementById('categoryScrollPosition'); // 移動させたい位置の要素を取得
var rect = element.getBoundingClientRect();
var position = rect.top; // 一番上からの位置を取得
function scrollToTop() {
scrollTo(0, position);
var obj = this.document.getElementById('select1');
obj.selectedIndex =0;
var obj = this.document.getElementById('select2');
obj.selectedIndex =0;
}