javascript: var howfast=prompt("how fast do you want to blur and unblur the screen in milliseconds?"); var bluroffspeed=howfast; var bluronspeed=howfast*2; function bluron() { (function () { document.body.style.filter = 'blur(5px)'; })(); function bluroff(){ (function () { document.body.style.filter = 'blur(0px)'; })(); } setTimeout(bluroff,bluroffspeed); } setInterval(bluron,bluronspeed);
