Prevent middle mouse click scrolling

There's no need to include jQuery just for this.

If you are using jQuery, there are already some great answers here. If not, you can use vanilla JS:

document.body.onmousedown = function(e) { if (e.button === 1) return false; }

Use:

$('body').mousedown(function(e){if(e.button==1)return false});

This works on Chrome: http://jsfiddle.net/PKpBN/3/