var filterdocument.querySelector("#turbulence' var frames = 0;var rad Math.PI/ 180;function freq Animation() {bfx = 0.005;bfy = 8.005;frames += .5;bfx + 0.0025 Math.cos (frames rad);bfy + 0.0025 Math.sin(frames rad);bf bfx.toString() + bfy.toString(); filter.setAttributeNS (null, 'baseFrequency', bf);window.requestAnimation Frame (freq Animation);}window.requestAnimationFrame (freq Animation);