How to scroll to top of page with JavaScript/jQuery?

You almost got it - you need to set the scrollTop on body, not window:

$(function() {
   $('body').scrollTop(0);
});

EDIT:

Maybe you can add a blank anchor to the top of the page:

$(function() {
   $('<a name="top"/>').insertBefore($('body').children().eq(0));
   window.location.hash = 'top';
});

Cross-browser, pure JavaScript solution:

document.body.scrollTop = document.documentElement.scrollTop = 0;

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