How do I make the window scroll on mousedown, using jQuery?

I was just wondering why this isnt working:

$('#down-a-bit').mousedown(function(){
    setTimeout( $('html, body').animate({ scrollTo开发者_开发技巧p: $(this).offset().top += 1}) ,300); 
});

What am I doing wrong? Any help would greatly be appreciated, Thanks

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You can use .delay instead of setTimeout. If you use setTimeout, wrap it in a function.

http://jsfiddle.net/pMTsF/