I am trying to make use of [qTip JQuery plugin][1]. I have tried to implement it but I get an error reported by firebug. f(window).scrollLeft is not a function [Break on this error] (function(f){f.fn.qtip=function(B,u){var...asses:{tooltip:"qtip-blue"}}}})(jQuery); Please have a look at [my setup][2]. What am i doing wrong? [1]: http://craigsworks.com/projects/qtip/docs/#create [2]: http://174.132.101.73/~dandy/tester/test.html