function toAnchor(anchor) {
    this.src += "#" + anchor;
    //self.scrollTo(document.body.scrollLeft, document.body.scrollTop);
}

HTMLIFrameElement.prototype.toAnchor = toAnchor;

function scrollParent(value) {
    this.parentNode.scrollTop = value;
}

HTMLIFrameElement.prototype.scrollParent = scrollParent;