function updateScrollbars(d /* display */, docHeight) {
    var totalHeight = docHeight + 2 * paddingTop(d);
    d.sizer.style.minHeight = d.heightForcer.style.top = totalHeight + "px";
    var scrollHeight = Math.max(totalHeight, d.scroller.scrollHeight);
    var needsH = d.scroller.scrollWidth > d.scroller.clientWidth;
    var needsV = scrollHeight > d.scroller.clientHeight;
    if (needsV) {
      d.scrollbarV.style.display = "block";
      d.scrollbarV.style.bottom = needsH ? scrollbarWidth(d.measure) + "px" : "0";
      d.scrollbarV.firstChild.style.height = 
        (scrollHeight - d.scroller.clientHeight + d.scrollbarV.clientHeight) + "px";
    } else d.scrollbarV.style.display = "";
    if (needsH) {
      d.scrollbarH.style.display = "block";
      d.scrollbarH.style.right = needsV ? scrollbarWidth(d.measure) + "px" : "0";
      d.scrollbarH.firstChild.style.width =
        (d.scroller.scrollWidth - d.scroller.clientWidth + d.scrollbarH.clientWidth) + "px";
    } else d.scrollbarH.style.display = "";
    if (needsH && needsV) {
      d.scrollbarFiller.style.display = "block";
      d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = scrollbarWidth(d.measure) + "px";
    } else d.scrollbarFiller.style.display = "";

    if (mac_geLion && scrollbarWidth(d.measure) === 0)
      d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = mac_geMountainLion ? "18px" : "12px";
  }
function updateScrollbars(d /* display */, docHeight) {
    var totalHeight = docHeight + 2 * paddingTop(d);
    d.sizer.style.minHeight = d.heightForcer.style.top = totalHeight + "px";
    var scrollHeight = Math.max(totalHeight, d.scroller.scrollHeight);
    var needsH = d.scroller.scrollWidth > d.scroller.clientWidth;
    var needsV = scrollHeight > d.scroller.clientHeight;
    if (needsV) {
      d.scrollbarV.style.display = "block";
      d.scrollbarV.style.bottom = needsH ? scrollbarWidth(d.measure) + "px" : "0";
      d.scrollbarV.firstChild.style.height = 
        (scrollHeight - d.scroller.clientHeight + d.scrollbarV.clientHeight) + "px";
    } else d.scrollbarV.style.display = "";
    if (needsH) {
      d.scrollbarH.style.display = "block";
      d.scrollbarH.style.right = needsV ? scrollbarWidth(d.measure) + "px" : "0";
      d.scrollbarH.firstChild.style.width =
        (d.scroller.scrollWidth - d.scroller.clientWidth + d.scrollbarH.clientWidth) + "px";
    } else d.scrollbarH.style.display = "";
    if (needsH && needsV) {
      d.scrollbarFiller.style.display = "block";
      d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = scrollbarWidth(d.measure) + "px";
    } else d.scrollbarFiller.style.display = "";

    if (mac_geLion && scrollbarWidth(d.measure) === 0)
      d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = mac_geMountainLion ? "18px" : "12px";
  }
function updateScrollbars ( d /* display */ , docHeight ) { var totalHeight = docHeight + 2 * paddingTop ( d ) ; d . sizer . style . minHeight = d . heightForcer . style . top = totalHeight + "px" ; var scrollHeight = Math . max ( totalHeight , d . scroller . scrollHeight ) ; var needsH = d . scroller . scrollWidth > d . scroller . clientWidth ; var needsV = scrollHeight > d . scroller . clientHeight ; if ( needsV ) { d . scrollbarV . style . display = "block" ; d . scrollbarV . style . bottom = needsH ? scrollbarWidth ( d . measure ) + "px" : "0" ; d . scrollbarV . firstChild . style . height = ( scrollHeight - d . scroller . clientHeight + d . scrollbarV . clientHeight ) + "px" ; } else d . scrollbarV . style . display = "" ; if ( needsH ) { d . scrollbarH . style . display = "block" ; d . scrollbarH . style . right = needsV ? scrollbarWidth ( d . measure ) + "px" : "0" ; d . scrollbarH . firstChild . style . width = ( d . scroller . scrollWidth - d . scroller . clientWidth + d . scrollbarH . clientWidth ) + "px" ; } else d . scrollbarH . style . display = "" ; if ( needsH && needsV ) { d . scrollbarFiller . style . display = "block" ; d . scrollbarFiller . style . height = d . scrollbarFiller . style . width = scrollbarWidth ( d . measure ) + "px" ; } else d . scrollbarFiller . style . display = "" ; if ( mac_geLion && scrollbarWidth ( d . measure ) === 0 ) d . scrollbarV . style . minWidth = d . scrollbarH . style . minHeight = mac_geMountainLion ? "18px" : "12px" ; }
Re-synchronize the fake scrollbars with the actual size of the content. Optionally force a scrollTop.
Re - synchronize the fake scrollbars with the actual size of the content . Optionally force a scrollTop .