<script>
$(document).ready(function () {

  // число снежинок
  var snowmax = 65;

  // цвет снежинок
  var snowcolor = new Array("#FFF", "#FFF", "#FFF", "#b9dff5", "#FFF");

  // шрифт, который создаёт снежинки
  var snowtype = new Array("Times");

  // эмодзи-снежинка
  var snowletter = "*";

  // скорость падения
  var sinkspeed = 0.5;

  // максимальный размер снежинок
  var snowmaxsize = 35;

  // минимальный размер снежинок
  var snowminsize = 8;

  // зона падения
  //(1-4: all, left, center, right)
  var snowingzone = 1;

  // конец настроек

  // не трогать и ничего не менять
  var snow = new Array();
  var marginbottom = 0;
  var marginright = 0;
  var timer;
  var i_snow = 0;
  var x_mv = new Array();
  var crds = new Array();
  var lftrght = new Array();
  var browserinfos = navigator.userAgent;
  var ie5 = document.all && document.getElementById && !browserinfos.match(/Opera/);
  var ns6 = document.getElementById && !document.all;
  var opera = browserinfos.match(/Opera/);
  var browserok = ie5 || ns6 || opera;

  function randommaker(range) {
    rand = Math.floor(range * Math.random());
    return rand;
  }

  for (i = 0; i <= snowmax; i++) {
    $('body').append("<span id='s" + i + "' style='position:absolute;top:-" + snowmaxsize + "'>" + snowletter + "</span>");
  }

  function initsnow() {
    if (ie5 || opera) {
      marginbottom = document.body.scrollHeight;
      marginright = document.body.clientWidth - 15;
    }
    else if (ns6) {
      marginbottom = document.body.scrollHeight;
      marginright = window.innerWidth - 15;
    }
    var snowsizerange = snowmaxsize - snowminsize;
    for (i = 0; i <= snowmax; i++) {
      crds[i] = 0;
      lftrght[i] = Math.random() * 15;
      x_mv[i] = 0.03 + Math.random() / 10;
      snow[i] = document.getElementById("s" + i);
      snow[i].style.fontFamily = snowtype[randommaker(snowtype.length)];
      snow[i].size = randommaker(snowsizerange) + snowminsize;
      snow[i].style.fontSize = snow[i].size + 'px';
      snow[i].style.color = snowcolor[randommaker(snowcolor.length)];
      snow[i].style.zIndex = 2;
      snow[i].sink = sinkspeed * snow[i].size / 5;
      if (snowingzone == 1) { snow[i].posx = randommaker(marginright - snow[i].size) };
      if (snowingzone == 2) { snow[i].posx = randommaker(marginright / 2 - snow[i].size) };
      if (snowingzone == 3) { snow[i].posx = randommaker(marginright / 2 - snow[i].size) + marginright / 4 };
      if (snowingzone == 4) { snow[i].posx = randommaker(marginright / 2 - snow[i].size) + marginright / 2 };
      snow[i].posy = randommaker(2 * marginbottom - marginbottom - 2 * snow[i].size);
      snow[i].style.left = snow[i].posx + 'px';
      snow[i].style.top = snow[i].posy + 'px';
    };
    movesnow();
  }

  function movesnow() {
    for (i = 0; i <= snowmax; i++) {
      crds[i] += x_mv[i];
      snow[i].posy += snow[i].sink;
      snow[i].style.left = snow[i].posx + lftrght[i] * Math.sin(crds[i]) + 'px';
      snow[i].style.top = snow[i].posy + 'px';

      if (snow[i].posy >= marginbottom - 2 * snow[i].size || parseInt(snow[i].style.left) > (marginright - 3 * lftrght[i])) {
        if (snowingzone == 1) { snow[i].posx = randommaker(marginright - snow[i].size) };
        if (snowingzone == 2) { snow[i].posx = randommaker(marginright / 2 - snow[i].size) };
        if (snowingzone == 3) { snow[i].posx = randommaker(marginright / 2 - snow[i].size) + marginright / 4 };
        if (snowingzone == 4) { snow[i].posx = randommaker(marginright / 2 - snow[i].size) + marginright / 2 };
        snow[i].posy = 0;
      }
    }
    var timer = setTimeout(movesnow, 50);
  }

//указать id пользователей которым нужно отключить снежинки
  if (UserID !== 200 && UserID !== 397 && UserID !== 375 && UserID !== 18 && UserID !== 418 && UserID !== 41 && UserID !== 519) {
    setTimeout(initsnow, 1000); 
  }
});
</script>