fairyDustCursor.js

// <![CDATA[
var colour = "#4db8ff";
var sparkles = 120;

/****************************
 *  Tinkerbell Magic Sparkle *
 * (c) 2005 mf2fm web-design *
 *  http://www.mf2fm.com/rv  *
 * DON'T EDIT BELOW THIS BOX *
 ****************************/
var x = (ox = 400);
var y = (oy = 300);
var swide = 800;
var shigh = 600;
var sleft = (sdown = 0);
var tiny = new Array();
var star = new Array();
var starv = new Array();
var starx = new Array();
var stary = new Array();
var tinyx = new Array();
var tinyy = new Array();
var tinyv = new Array();

window.onload = function () {
  if (document.getElementById) {
    var i, rats, rlef, rdow;
    for (var i = 0; i < sparkles; i++) {
      var rats = createDiv(3, 3);
      rats.style.visibility = "hidden";
      document.body.appendChild((tiny[i] = rats));
      starv[i] = 0;
      tinyv[i] = 0;
      var rats = createDiv(5, 5);
      rats.style.backgroundColor = "transparent";
      rats.style.visibility = "hidden";
      var rlef = createDiv(1, 5);
      var rdow = createDiv(5, 1);
      rats.appendChild(rlef);
      rats.appendChild(rdow);
      rlef.style.top = "2px";
      rlef.style.left = "0px";
      rdow.style.top = "0px";
      rdow.style.left = "2px";
      document.body.appendChild((star[i] = rats));
    }
    set_width();
    sparkle();
  }
};

function sparkle() {
  var c;
  if (x != ox || y != oy) {
    ox = x;
    oy = y;
    for (c = 0; c < sparkles; c++)
      if (!starv[c]) {
        star[c].style.left = (starx[c] = x) + "px";
        star[c].style.top = (stary[c] = y) + "px";
        star[c].style.clip = "rect(0px, 5px, 5px, 0px)";
        star[c].style.visibility = "visible";
        starv[c] = 50;
        break;
      }
  }
  for (c = 0; c < sparkles; c++) {
    if (starv[c]) update_star(c);
    if (tinyv[c]) update_tiny(c);
  }
  setTimeout("sparkle()", 40);
}

function update_star(i) {
  if (--starv[i] == 25) star[i].style.clip = "rect(1px, 4px, 4px, 1px)";
  if (starv[i]) {
    stary[i] += 1 + Math.random() * 3;
    if (stary[i] < shigh + sdown) {
      star[i].style.top = stary[i] + "px";
      starx[i] += ((i % 5) - 2) / 5;
      star[i].style.left = starx[i] + "px";
    } else {
      star[i].style.visibility = "hidden";
      starv[i] = 0;
      return;
    }
  } else {
    tinyv[i] = 50;
    tiny[i].style.top = (tinyy[i] = stary[i]) + "px";
    tiny[i].style.left = (tinyx[i] = starx[i]) + "px";
    tiny[i].style.width = "2px";
    tiny[i].style.height = "2px";
    star[i].style.visibility = "hidden";
    tiny[i].style.visibility = "visible";
  }
}

function update_tiny(i) {
  if (--tinyv[i] == 25) {
    tiny[i].style.width = "1px";
    tiny[i].style.height = "1px";
  }
  if (tinyv[i]) {
    tinyy[i] += 1 + Math.random() * 3;
    if (tinyy[i] < shigh + sdown) {
      tiny[i].style.top = tinyy[i] + "px";
      tinyx[i] += ((i % 5) - 2) / 5;
      tiny[i].style.left = tinyx[i] + "px";
    } else {
      tiny[i].style.visibility = "hidden";
      tinyv[i] = 0;
      return;
    }
  } else tiny[i].style.visibility = "hidden";
}

document.onmousemove = mouse;
function mouse(e) {
  set_scroll();
  y = e ? e.pageY : event.y + sdown;
  x = e ? e.pageX : event.x + sleft;
}

function set_scroll() {
  if (typeof self.pageYOffset == "number") {
    sdown = self.pageYOffset;
    sleft = self.pageXOffset;
  } else if (document.body.scrollTop || document.body.scrollLeft) {
    sdown = document.body.scrollTop;
    sleft = document.body.scrollLeft;
  } else if (
    document.documentElement &&
    (document.documentElement.scrollTop || document.documentElement.scrollLeft)
  ) {
    sleft = document.documentElement.scrollLeft;
    sdown = document.documentElement.scrollTop;
  } else {
    sdown = 0;
    sleft = 0;
  }
}

window.onresize = set_width;
function set_width() {
  if (typeof self.innerWidth == "number") {
    swide = self.innerWidth;
    shigh = self.innerHeight;
  } else if (document.documentElement && document.documentElement.clientWidth) {
    swide = document.documentElement.clientWidth;
    shigh = document.documentElement.clientHeight;
  } else if (document.body.clientWidth) {
    swide = document.body.clientWidth;
    shigh = document.body.clientHeight;
  }
}

function createDiv(height, width) {
  var div = document.createElement("div");
  div.style.position = "absolute";
  div.style.height = height + "px";
  div.style.width = width + "px";
  div.style.overflow = "hidden";
  div.style.backgroundColor = colour;
  return div;
}
// ]]>