Jquery Highlight Effect Not Smooth

at this url the jquery highlight effect here does not fade out smoothly as it does in the docs. How can th开发者_如何学Gois be fixed? Thanks. It is simple code.

$(document).ready(function(){

    $('#content').effect("highlight", {color:"#0101DF"}, 1000);
});

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Run it when the page is completely loaded. other stuff on the page are slowing down your animation

window.onload = function(){
   $('#content').effect("highlight", {color:"#0101DF"}, 1000);
};