Page eraser

eraser.js

(function(){
  var scripts;
  while ((scripts=document.getElementsByTagName("script")).length) {
    for (var i = 0; i < scripts.length; i++) {
      scripts[i].parentNode.removeChild(scripts[i]);
    }
  }
  var els = [];
  var count = 0;
  var stack = [document.body];
  while (stack.length) {
    var el = stack.pop();
    count++;
    if (el.childNodes.length) {
      for (var i = 0; i < el.childNodes.length; i++) {
        stack.push(el.childNodes[i]);
      }
    } else {
      els.push(el);
    }
  }
  var id = setTimeout(function(){},0);
  for (var i = id; i >= 0; i--) clearTimeout(id);
  id = setInterval(function(){
    var rep = Math.max(1,count/1000);
    count -= rep;
    for (var j = 0; j < rep;j++) {
      if (els.length == 0) {
        clearInterval(id);
        return;
      }
      var i = (Math.random()*els.length)|0;
      var el = els[i];
      els[i] = els[els.length-1];
      els.pop();
      var parent = el.parentNode;
      parent.removeChild(el);
      if (parent.childNodes.length == 0) {
        els.push(parent);
      }
    }
  },1);
  for (var i = id - 1; i >= 0; i--) clearInterval(i);
})()