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/*
 * fireworks.js - Kenneth Kufluk (http://kenneth.kufluk.com/)
 * http://js-fireworks.appspot.com/
 * MIT (X11) Licensed
 
 Copyright (c) 2010 Kenneth Kufluk

Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 
 *
 */
$(document).ready(function () {

// when firework text is changed, update the tinyurl
  $('#firetext').blur(function () {
    FireworkDisplay.getTinyUrl();
  });

// focus on the input box
  try {
    $('#firetext').get(0).focus();
  } catch (ignore) {}

// reload the page when it's resized
  var resizeTimer = null;
  $(window).bind('resize', function () {
    if (document.all) return;
    if (resizeTimer) clearTimeout(resizeTimer);
    resizeTimer = setTimeout("location.reload()", 100);
  });

// finally, all is ready, so kick off the firework display
  var params = location.search;
  var message = "";
  if (params.match('msg=')) {
    // change the message if set in the page url
    message = unescape(params.split('?msg=')[1]);
    $('#firetext').val(message);
  }
  FireworkDisplay.launchText();

});

// configure the sliders
$(document).ready(function () {
  $("#slider_firework_speed").slider({
    slide: function (event, ui) {
      FireworkDisplay.FIREWORK_SPEED = ui.value;
    },
    value: FireworkDisplay.FIREWORK_SPEED,
    max: 5,
    step: 0.1,
    orientation: 'vertical'
  });
  $("#slider_fragment_spread").slider({
    slide: function (event, ui) {
      FireworkDisplay.FRAGMENT_SPREAD = ui.value;
    },
    value: FireworkDisplay.FRAGMENT_SPREAD,
    max: 20,
    orientation: 'vertical'
  });
  $("#slider_gravity").slider({
    slide: function (event, ui) {
      FireworkDisplay.GRAVITY = ui.value;
    },
    value: FireworkDisplay.GRAVITY,
    step: 0.1,
    min: -10,
    max: 20,
    orientation: 'vertical'
  });
});

FireworkDisplay = {
  GRAVITY: 5,
  FRAME_RATE: 30,
  DEPLOYMENT_RATE: 10,
  FIREWORK_SPEED: 2,
  DISPERSION_WIDTH: 1,
  DISPERSION_HEIGHT: 2,
  FIREWORK_PAYLOAD: 30,
  FRAGMENT_SPREAD: 8,
  TEXT_LINE_HEIGHT: 70,
  FIREWORK_READY: 0,
  FIREWORK_LAUNCHED: 1,
  FIREWORK_EXPLODED: 2,
  FIREWORK_FRAGMENT: 3,
  canvas: 0,
  canvaswidth: 0,
  canvasheight: 0,
  ctx: 0,
  blockPointer: 0,
  fireworks: [],
  allBlocks: new Array(),
  gameloop: 0,
  updateDisplay: function () {
    this.ctx.clearRect(0, 0, this.canvaswidth, this.canvasheight);
    var firecount = 0;
    for (var i = 0; i < this.fireworks.length; i++) {
      if (this.fireworks[i] == null) continue;
      if (this.fireworks[i].status != this.FIREWORK_EXPLODED) {
        firecount++;
      }
      this.displayFirework(this.fireworks[i]);
    }
    if (firecount == 0) {
      $('#form').fadeIn('slow');
    }
    $('#fireCount').html(firecount);
  },
  addFireworks: function () {
    if (this.blockPointer >= this.allBlocks.length) {
      return;
    }
    var fw = this.fireworks[this.fireworks.length] = new Firework(this.fireworks.length);
    var targetx = this.allBlocks[this.blockPointer][0];
    targetx = (((targetx)) / 300) * this.DISPERSION_HEIGHT;
    var targety = this.allBlocks[this.blockPointer][1];
    targety = (((10 - targety) / 100) * this.DISPERSION_WIDTH) + 3.5;
    this.launchFirework(fw, targetx, targety);
    this.blockPointer++;
    setTimeout("FireworkDisplay.addFireworks()", 1000 / this.DEPLOYMENT_RATE);
  },
  getTinyUrl: function () {
    var tinypath = "http://js-fireworks.appspot.com?msg=" + escape($('#firetext').val());
    // Define API URL:
    API = 'http://json-tinyurl.appspot.com/?url=';
    // Append new SCRIPT element to BODY with SRC of API:
    document.getElementsByTagName('body')[0].appendChild((function () {
      var s = document.createElement('script');
      s.type = 'text/javascript';
      s.src = API + encodeURIComponent(tinypath) + '&callback=FireworkDisplay.updateTinyUrl';
      return s;
    })());
  },
  updateTinyUrl: function (o) {
    $('#url').val(o.tinyurl);
  },
  launchText: function () {
    this.getTinyUrl();

this.fireworks = [];
    this.blockPointer = 0;
    clearTimeout(this.gameloop);
    //CANVAS
    this.canvas = $("#cv").get(0);
    if (typeof G_vmlCanvasManager != "undefined") {
      this.canvas = G_vmlCanvasManager.initElement(this.canvas);
    }
    this.ctx = this.canvas.getContext("2d");
    this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
    this.ctx.lineWidth = "2";
    this.ctx.strokeStyle = "rgb(255, 255, 255)";
    this.canvaswidth = $(window).width();
    this.canvasheight = $(window).height();

$(this.canvas).bind('click', function () {
      $('#form').fadeIn('slow');
    });

this.allBlocks = new Array();
    var windowHeight = $(window).height();
    var offsetTop = totalHeightOffset;
    offsetTop += (windowHeight - totalHeightOffset) / 6;
    var offsetLeft = 0;
    var heightOffsetCount = 0;
    for (var i = 0; i < text.length; i++) {
      if (text.charAt(i) == ' ') {
        heightOffsetCount++;
        offsetTop = offsetTop - this.TEXT_LINE_HEIGHT;
        offsetLeft = 0;
      } else {
        var maxWidthOffset = 0;
        for (var j = 0; j < FONT_FIREWORK[text.charAt(i)].length; j++) {
          var chararr = FONT_FIREWORK[text.charAt(i)][j];
          this.allBlocks[this.allBlocks.length] = [(chararr[0] + offsetLeft) - (totalWidthOffset[heightOffsetCount] / 2), chararr[1] - offsetTop];
          maxWidthOffset = Math.max(maxWidthOffset, chararr[0]);
        }
        offsetLeft += maxWidthOffset + 40; //plus character spacing
      }
    }

this.gameloop = setInterval("FireworkDisplay.updateDisplay()", 1000 / this.FRAME_RATE);

this.addFireworks();

$('#form').fadeOut('slow');
  },
  launchFirework: function (fw, dispersion, speed) {
    fw.dx = dispersion;
    fw.dy = speed;
    fw.status = this.FIREWORK_LAUNCHED;
  },
  disperseFirework: function (fw, speed) {
    fw.dx = speed * (0.5 - Math.random());
    fw.dy = speed * (0.5 - Math.random()) + 1;
  },
  explodeFirework: function (fw, speed) {
    fw.status = this.FIREWORK_EXPLODED;
    fw.r = (Math.random() / 2) + 0.5;
    fw.g = (Math.random() / 2) + 0.5;
    fw.b = (Math.random() / 2) + 0.5;
    fw.brightness = 200;
    this.ctx.strokeStyle = "rgb(200, 200, 200)";
    // add the fragments
    var frags = Math.random() * this.FIREWORK_PAYLOAD;
    for (var i = 0; i < frags; i++) {
      var spark = this.fireworks[this.fireworks.length] = new Firework(this.fireworks.length);
      spark.x = fw.x;
      spark.y = fw.y;
      spark.r = fw.r;
      spark.g = fw.g;
      spark.b = fw.b;
      spark.status = this.FIREWORK_FRAGMENT;
      this.disperseFirework(spark, Math.random() * this.FRAGMENT_SPREAD);
    }
  },
  destroyFirework: function (fw) {
    this.fireworks[fw.index] = null;
  },
  displayFirework: function (fw, speed) {
    if (fw.y < 0) this.destroyFirework(fw);
    if (fw.status == this.FIREWORK_EXPLODED) {
      this.ctx.beginPath();
      this.ctx.fillStyle = "rgb(200, 200, 200)";
      var radius = 3; // Arc radius
      var startAngle = 0; // Starting point on circle
      var endAngle = Math.PI * 2; // End point on circle
      var anticlockwise = true; // clockwise or anticlockwise
      this.ctx.arc(fw.x, this.canvas.height - fw.y, radius, startAngle, endAngle, anticlockwise);
      this.ctx.fill();
      return;
    }
    fw.colour = "rgb(80, 80, 80)";
    this.ctx.strokeStyle = fw.colour;
    var forces = {
      x: 0,
      y: -0.05
    };
    if (fw.status == this.FIREWORK_FRAGMENT) {
      forces.y = this.GRAVITY / -100;
      fw.colour = "rgb(" + Math.round(fw.r * fw.brightness) + ", " + Math.round(fw.g * fw.brightness) + ", " + Math.round(fw.b * fw.brightness) + ")";
      this.ctx.strokeStyle = fw.colour;
      fw.brightness -= 5;
      if (fw.brightness < 0) this.destroyFirework(fw);
    }
    if (fw.dy < -1 && fw.status == this.FIREWORK_LAUNCHED) {
      this.explodeFirework(fw);
    }
    fw.start = {
      x: fw.x,
      y: fw.y
    };
    //apply accelerations
    fw.dx += forces.x * this.FIREWORK_SPEED;
    fw.dy += forces.y * this.FIREWORK_SPEED;
    //apply velocities
    fw.x += fw.dx * this.FIREWORK_SPEED;
    fw.y += fw.dy * this.FIREWORK_SPEED;
    //show
    if (fw.previous) {
      this.ctx.beginPath();
      this.ctx.moveTo(fw.previous.x, this.canvas.height - fw.previous.y);
      this.ctx.lineTo(fw.x, this.canvas.height - fw.y);
      this.ctx.stroke();
      this.ctx.closePath();
    }
    fw.previous = {
      x: fw.start.x,
      y: fw.start.y
    };
  }
}

Firework = function (index) {
  this.index = index;
  this.dx = 0;
  this.dy = 0;
  this.x = FireworkDisplay.canvaswidth / 2;
  this.y = 0;
  this.status = FireworkDisplay.FIREWORK_READY;
  this.brightness = 255;
  this.r = 1;
  this.g = 1;
  this.b = 1;
  this.start = {
    x: 0,
    y: 0
  };
  this.previous = 0;
}

// Home-made point-based font.
var FONT_FIREWORK = {"!":[[5,-40],[5,-30],[5,-20],[5,0]],"\"":[[20,-40],[20,-30],[5,-40],[5,-30]],"#":[[35,-40],[45,-30],[35,-30],[15,-40],[25,-30],[35,-20],[45,-10],[15,-30],[35,-10],[5,-30],[15,-20],[25,-10],[35,0],[15,-10],[5,-10],[15,0]],"%":[[45,-40],[35,-30],[15,-40],[45,-10],[5,-40],[15,-30],[25,-20],[35,-10],[45,0],[5,-30],[35,0],[15,-10],[5,0]],"&":[[35,-40],[25,-40],[35,-30],[15,-40],[35,-20],[15,-30],[25,-20],[15,-20],[25,-10],[35,0],[5,-20],[25,0],[5,-10],[15,0],[25,10],[5,0]],"'":[[5,-40],[5,-30]],"(":[[15,-40],[5,-30],[5,-20],[5,-10],[15,0]],")":[[5,-40],[15,-30],[15,-20],[15,-10],[5,0]],"*":[[25,-40],[5,-40],[15,-30],[25,-20],[5,-20]],"+":[[20,-40],[35,-20],[20,-30],[25,-20],[15,-20],[20,-10],[5,-20],[20,0]],",":[[5,0],[5,10]],"-":[[35,-20],[25,-20],[15,-20],[5,-20]],"-":[[35,-20],[25,-20],[15,-20],[5,-20]],".":[[5,0]],"/":[[45,-40],[35,-30],[25,-20],[15,-10],[5,0]],":":[[5,-30],[5,-10]],";":[[5,-30],[5,-10],[5,0]],"<":[[15,-25],[5,-15],[15,-5]],"=":[[35,-30],[25,-30],[15,-30],[35,-10],[5,-30],[25,-10],[15,-10],[5,-10]],">":[[5,-25],[15,-15],[5,-5]],"?":[[35,-40],[25,-40],[35,-30],[15,-40],[35,-20],[5,-40],[25,-20],[15,-20],[15,0]],"@":[[35,-30],[25,-40],[15,-40],[35,-20],[25,-20],[35,-10],[5,-30],[35,0],[15,-15],[5,-20],[25,0],[15,-5],[5,-10],[15,5],[5,0]],"A":[[35,-30],[25,-40],[15,-40],[35,-20],[25,-20],[35,-10],[5,-30],[15,-20],[35,0],[5,-20],[5,-10],[5,0]],"B":[[25,-40],[15,-40],[25,-30],[35,-20],[5,-40],[25,-20],[35,-10],[5,-30],[15,-20],[35,0],[5,-20],[25,0],[5,-10],[15,0],[5,0]],"C":[[35,-40],[25,-40],[15,-40],[5,-30],[35,0],[5,-20],[25,0],[5,-10],[15,0]],"D":[[35,-30],[25,-40],[15,-40],[35,-20],[5,-40],[35,-10],[5,-30],[5,-20],[25,0],[5,-10],[15,0],[5,0]],"E":[[35,-40],[25,-40],[15,-40],[5,-40],[25,-20],[5,-30],[15,-20],[35,0],[5,-20],[25,0],[5,-10],[15,0],[5,0]],"F":[[35,-40],[25,-40],[15,-40],[5,-40],[25,-20],[5,-30],[15,-20],[5,-20],[5,-10],[5,0]],"G":[[35,-40],[25,-40],[15,-40],[35,-20],[25,-20],[35,-10],[5,-30],[35,0],[5,-20],[25,0],[5,-10],[15,0]],"H":[[35,-40],[35,-30],[35,-20],[5,-40],[25,-20],[35,-10],[5,-30],[15,-20],[35,0],[5,-20],[5,-10],[5,0]],"I":[[25,-40],[15,-40],[5,-40],[15,-30],[15,-20],[15,-10],[25,0],[15,0],[5,0]],"J":[[35,-40],[25,-40],[35,-30],[35,-20],[35,-10],[25,0],[5,-10],[15,0]],"K":[[35,-40],[25,-30],[5,-40],[25,-20],[35,-10],[5,-30],[15,-20],[35,0],[5,-20],[5,-10],[5,0]],"L":[[5,-40],[5,-30],[35,0],[5,-20],[25,0],[5,-10],[15,0],[5,0]],"M":[[35,-40],[35,-30],[25,-30],[35,-20],[5,-40],[15,-30],[35,-10],[20,-20],[5,-30],[35,0],[5,-20],[5,-10],[5,0]],"N":[[35,-40],[35,-30],[35,-20],[5,-40],[15,-30],[25,-20],[35,-10],[5,-30],[35,0],[5,-20],[5,-10],[5,0]],"O":[[35,-30],[25,-40],[15,-40],[35,-20],[35,-10],[5,-30],[5,-20],[25,0],[5,-10],[15,0]],"P":[[35,-30],[25,-40],[15,-40],[5,-40],[25,-20],[5,-30],[15,-20],[5,-20],[5,-10],[5,0]],"Q":[[35,-30],[25,-40],[15,-40],[35,-20],[35,-10],[5,-30],[25,-10],[35,0],[5,-20],[25,0],[5,-10],[15,0]],"R":[[35,-30],[25,-40],[15,-40],[5,-40],[25,-20],[35,-10],[5,-30],[15,-20],[35,0],[5,-20],[5,-10],[5,0]],"S":[[35,-35],[25,-40],[15,-40],[35,-15],[25,-20],[5,-35],[35,-5],[15,-20],[5,-25],[25,0],[15,0],[5,-5]],"T":[[35,-40],[25,-40],[15,-40],[20,-30],[5,-40],[20,-20],[20,-10],[20,0]],"U":[[35,-40],[35,-30],[35,-20],[5,-40],[35,-10],[5,-30],[5,-20],[25,0],[5,-10],[15,0]],"V":[[35,-40],[35,-30],[35,-20],[5,-40],[5,-30],[25,-10],[5,-20],[15,-10],[20,0]],"W":[[35,-40],[35,-30],[20,-40],[35,-20],[20,-30],[5,-40],[35,-10],[20,-20],[5,-30],[35,0],[20,-10],[5,-20],[25,0],[5,-10],[15,0]],"X":[[35,-40],[25,-30],[5,-40],[15,-30],[20,-20],[25,-10],[35,0],[15,-10],[5,0]],"Y":[[35,-40],[35,-30],[5,-40],[25,-20],[5,-30],[15,-20],[20,-10],[20,0]],"Z":[[35,-40],[25,-40],[15,-40],[25,-30],[5,-40],[20,-20],[35,0],[15,-10],[25,0],[15,0],[5,0]],"_":[[45,0],[35,0],[25,0],[15,0],[5,0]],"a":[[25,-30],[35,-20],[15,-30],[35,-10],[25,-15],[5,-30],[35,0],[15,-15],[25,0],[5,-10],[15,0]],"b":[[25,-30],[35,-20],[5,-40],[15,-30],[35,-10],[5,-30],[5,-20],[25,0],[5,-10],[15,0],[5,0]],"c":[[35,-30],[25,-30],[15,-30],[35,0],[5,-20],[25,0],[5,-10],[15,0]],"d":[[35,-40],[35,-30],[25,-30],[35,-20],[15,-30],[35,-10],[35,0],[5,-20],[25,0],[5,-10],[15,0]],"e":[[25,-30],[35,-20],[15,-30],[25,-15],[35,0],[15,-15],[5,-20],[25,0],[5,-10],[15,0]],"f":[[25,-40],[15,-40],[25,-20],[5,-30],[15,-20],[5,-20],[5,-10],[5,0]],"g":[[35,-30],[25,-30],[35,-20],[15,-30],[35,-10],[25,-10],[35,0],[5,-20],[15,-10],[25,10],[15,10],[5,10]],"h":[[5,-40],[25,-20],[35,-10],[5,-30],[15,-20],[35,0],[5,-20],[5,-10],[5,0]],"i":[[5,-40],[5,-20],[5,-10],[5,0]],"j":[[15,-40],[15,-20],[15,-10],[15,0],[5,10]],"k":[[35,-30],[5,-40],[25,-20],[35,-10],[5,-30],[15,-20],[35,0],[5,-20],[5,-10],[5,0]],"l":[[5,-40],[5,-30],[5,-20],[5,-10],[15,0]],"m":[[35,-30],[45,-20],[25,-30],[45,-10],[15,-30],[25,-20],[45,0],[5,-30],[25,-10],[5,-20],[25,0],[5,-10],[5,0]],"n":[[25,-30],[35,-20],[15,-30],[35,-10],[5,-30],[35,0],[5,-20],[5,-10],[5,0]],"o":[[25,-30],[35,-20],[15,-30],[35,-10],[5,-20],[25,0],[5,-10],[15,0]],"p":[[25,-30],[35,-20],[15,-30],[35,-10],[5,-30],[5,-20],[25,0],[5,-10],[15,0],[5,0],[5,10]],"q":[[35,-30],[25,-30],[35,-20],[15,-30],[35,-10],[35,0],[5,-20],[25,0],[35,10],[5,-10],[15,0]],"r":[[35,-30],[25,-30],[5,-30],[15,-20],[5,-20],[5,-10],[5,0]],"s":[[35,-30],[25,-30],[15,-30],[35,-10],[25,-15],[15,-15],[5,-20],[25,0],[15,0],[5,0]],"t":[[25,-30],[5,-40],[15,-30],[5,-30],[5,-20],[25,0],[5,-10],[15,0]],"u":[[35,-30],[35,-20],[35,-10],[5,-30],[35,0],[5,-20],[25,0],[5,-10],[15,0]],"v":[[35,-30],[35,-20],[5,-30],[25,-10],[5,-20],[15,-10],[20,0]],"w":[[35,-30],[35,-20],[20,-30],[35,-10],[20,-20],[5,-30],[35,0],[20,-10],[5,-20],[25,0],[5,-10],[15,0]],"x":[[35,-30],[25,-20],[5,-30],[15,-20],[25,-10],[35,0],[15,-10],[5,0]],"y":[[35,-30],[35,-20],[35,-10],[5,-30],[25,-10],[35,0],[5,-20],[15,-10],[25,10],[15,10]],"z":[[35,-30],[25,-30],[15,-30],[25,-20],[5,-30],[35,0],[15,-10],[25,0],[15,0],[5,0]],"0":[[35,-30],[25,-40],[15,-40],[35,-20],[35,-10],[15,-25],[25,-15],[5,-30],[5,-20],[25,0],[5,-10],[15,0]],"1":[[15,-40],[15,-30],[5,-30],[15,-20],[15,-10],[15,0]],"2":[[35,-35],[25,-40],[35,-25],[15,-40],[25,-20],[5,-35],[15,-20],[35,0],[25,0],[5,-10],[15,0],[5,0]],"3":[[25,-40],[35,-30],[15,-40],[5,-40],[25,-20],[35,-10],[15,-20],[25,0],[15,0],[5,0]],"4":[[35,-40],[35,-30],[35,-20],[5,-40],[25,-20],[35,-10],[5,-30],[15,-20],[35,0],[5,-20]],"5":[[35,-40],[25,-40],[15,-40],[35,-15],[5,-40],[25,-20],[35,-5],[5,-30],[15,-20],[5,-20],[25,0],[15,0],[5,0]],"6":[[35,-40],[25,-40],[15,-40],[35,-20],[25,-20],[35,-10],[5,-30],[15,-20],[5,-20],[25,0],[5,-10],[15,0]],"7":[[35,-40],[35,-30],[25,-40],[15,-40],[5,-40],[25,-20],[5,-30],[25,-10],[25,0]],"8":[[35,-35],[25,-40],[35,-25],[15,-40],[35,-15],[25,-20],[5,-35],[35,-5],[15,-20],[5,-25],[25,0],[5,-15],[15,0],[5,-5]],"9":[[35,-30],[25,-40],[15,-40],[35,-20],[25,-20],[35,-10],[5,-30],[15,-20],[5,-20],[25,0],[15,0],[5,0]]};

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
<html lang="en"> 
<head>
  <title>js-fireworks - JavaScript Fireworks - A Chrome Experiment</title> 
 
   
  <meta http-equiv="X-UA-Compatible" content="chrome=1" /> 
  <meta name="Description" content="A Chrome Experiment to show Fireworks over London entirely in JavaScript using the Canvas tag.  A good test of browser performance when handling a large number of items." />

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js" type="text/javascript"></script> 
   
   
  <script class="jsbin" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
  <script class="jsbin" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/jquery-ui.min.js"></script>

</head> 
<body> 
 
  <h1>JavaScript Fireworks</h1> 
  <script type="text/javascript"> 
    // we need a full screen canvas, but the canvas tag doesn't support percentage widths
    // so we simply write out the canvas tag using javascript
    document.write('<div style="background:url(/assets/fireworks.jpg) repeat-x;position:absolute;left:0;top:'+($(window).height()-193)+'px;width:100%;height:200px;"></div>');
    document.write('<canvas id="cv" width="'+$(window).width()+'" height="'+($(window).height()-100)+'" style="position:absolute;left:0;top:0;"></canvas>');
    // obviously, this become wrong if the browser window changes size
    // so we simply reload the page on resize
  </script>

<div id="message"> 
    Number of items on the screen:  <div id="fireCount">1</div> 
    <a href="http://kenneth.kufluk.com" target="_blank">© Kenneth Kufluk 2010</a> 
    <a href="http://github.com/kennethkufluk/js-fireworks" target="_blank">My code is open sourced at github.</a> 
  </div>

<div id="attributions"> 
    Looking a little slow?  <a href="http://www.google.com/chrome" target="_blank">Download Chrome!</a><br/> 
    Panorama:<a href="http://www.flickr.com/photos/chrishudson/" target="_blank">flickr/ChrisH2006</a><br/> 
    Eye:<a href="http://www.flickr.com/photos/mcdemoura/" target="_blank">flickr/M�cio Cabral de Moura</a><br/> 
    Font: <a href="http://bitmapmania.m78.com/" target="_blank">BM Receipt</a>  via <a href="http://cufon.shoqolate.com/generate/" target="_blank">Cuf� Generator</a> 
  </div> 
  
  <div id="slider_firework_speed"><span class="label" style="display:block;margin:10px 20px 10px -50px;">Speed</div> 
  <div id="slider_fragment_spread"><span class="label" style="display:block;margin:10px 20px 10px -50px;">Blast Radius</div> 
  <div id="slider_gravity"><span class="label" style="display:block;margin:10px 20px;">Gravity</div> 
  <div id="slider_framerate"><span class="label" style="display:block;margin:20px 20px;">Framerate</span></div> 
  
  <div id="form"> 
    <form onsubmit="FireworkDisplay.launchText();return false;"> 
      <div> 
        <span class="boxtext">Enter your own message and click Launch to see it written in Fireworks over London</span><br/> 
        <input id="firetext" type="text" value="firejune.com"/> 
        <input id="launch" type="submit" value="Launch!"/> 
      </div> 
      <div> 
        <span id="sendlink" class="boxtext">Forward:</span><input type="text" id="url" name="url"/> 
      </div> 
    </form> 
  </div> 
    
</body> 
</html>

body {
    background: #010101;
    font-size:62.5%;
}
html, body { overflow: hidden; }
#message {
    font-family:verdana, sans serif;
    color:#EEE;
    position:absolute;
    left:0;
    bottom:10px;
    width:100%;
    text-align:right;
    padding-right:10px;
}
#message a {
    color:#EEE;
    padding-right:10px;
}
#message a:hover {
    color:#00f;
}
#attributions {
    font-family:verdana;
    color:#EEE;
    position:absolute;
    left:0;
    bottom:10px;
    width:50%;
    text-align:left;
    padding-left:10px;
    display:block;
}
#attributions a {
    color:#eee;
    padding-left:10px;
}
#attributions a:hover {
    color:#00f;
}
.boxtext {
    margin:10px 3px;
    padding:8px;
    color:white;
    font-weight:bold;
    font-family:arial;
}
#launch {
    cursor:pointer;
    background:#67A4ED;
    -webkit-border-radius:10px;
    border:1px solid #3C75BA;
    margin:10px 3px;
    padding:8px;
    color:white;
    font-weight:bold;
}
input[type='text']{
    border:2px solid #3C75BA;
    padding:5px;
    width:300px;
    font-size:18px;
    color:#3C75BA;
}
#form {
   position:relative;
   margin-left:auto;
   margin-right:auto;
   width:450px;
   background:#569AEE;
   padding:16px;
   -webkit-border-radius:10px;
   border:#3C75BA;
   text-align:center;
   display:none;
}
#ad {
    font-family:verdana, sans serif;
    position:absolute;
    right:200px;
    bottom:10px;
    width:160px;
    text-align:right;
    padding-right:10px;
}
h1 {
    position:absolute;
    left:-1000px;
}
/* jQuery UI sliders */
#slider_framerate { margin: 40px 10px 0 10px; position:absolute; left:50px; bottom:200px; }
#slider_gravity { margin: 15px; position:absolute; left:10px; bottom:200px; }
#slider_firework_speed { margin: 15px; position:absolute; right:10px; bottom:200px; }
#slider_fragment_spread { margin: 15px; position:absolute; right:10px; bottom:50px; }
.ui-widget-content { color:#666;}

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