return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4; 
var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4; return (pos > 1 ? 1 : pos); 
  flicker: function(pos) {    return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;  },
6462	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6462/110aa6ceb19f486c3930285023b66d3f23fdf6c4/effects.js/clean/wp-includes/js/scriptaculous/effects.js