Scroll back to the top of scrollable div

var myDiv = document.getElementById('containerDiv');
myDiv.innerHTML = variableLongText;
myDiv.scrollTop = 0;

See the scrollTop attribute.

Another way to do it with a smooth animation is like this

$("#containerDiv").animate({ scrollTop: 0 }, "fast");

I tried the existing answers to this question, and none of them worked on Chrome for me. What did work was slightly different:

$('body, html, #containerDiv').scrollTop(0);

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