scrollintoview animation

Question

My code is at http://jsfiddle.net/mannagod/QT3v5/7/.

The JS is:

function delay() {
    var INTENDED_MONTH = 7 //August
    // INTENDED_MONTH is zero-relative
    now = new Date().getDate(),
rows = document.getElementById('scripture').rows;
    if (new Date().getMonth() != INTENDED_MONTH) {
        // need a value here less than 1, 
        // or the box for the first of the month will be in Red
        now = 0.5
    };
    for (var i = 0, rl = rows.length; i < rl; i++) {
        var cells = rows[i].childNodes;
        for (j = 0, cl = cells.length; j < cl; j++) {
            if (cells[j].nodeName == 'TD'
  && cells[j].firstChild.nodeValue != ''
  && cells[j].firstChild.nodeValue == now) {
                // 'ffff99' // '#ffd700' // TODAY - red
                rows[i].style.backgroundColor = 'red' 
                rows[i].scrollIntoView();
            }
        }
    }
}

I need to find a way to smooth the .scrollintoview(). Right now it 'jumps' to the highlighted row. I need it to smoothly transition to that row. It needs to be done dynamically in replacement of scrollintoview. Any ideas? Thanks.

Answer 1

In most modern browsers (Chrome and Firefox, but not Safari, UC, or IE) you can pass options in an object to .scrollIntoView().

Try this:

elm.scrollIntoView({ behavior: 'smooth', block: 'center' })

Other values are behavior: 'instant' or block: 'start' or block: 'end'. See https://developer.mozilla.org/en/docs/Web/API/Element/scrollIntoView