URL parameter to filter stop trips display by route or another stop on the route
URL parameter to filter stop trips display by route or another stop on the route

file:a/.gitmodules (deleted)
--- a/.gitmodules
+++ /dev/null
@@ -1,7 +1,1 @@
-[submodule "js/flotr2"]
-	path = js/flotr2
-	url = https://github.com/HumbleSoftware/Flotr2.git
-[submodule "js/FlashCanvas"]
-	path = js/FlashCanvas
-	url = https://github.com/timcameronryan/FlashCanvas
 

--- a/include/common-request.inc.php
+++ b/include/common-request.inc.php
@@ -57,6 +57,12 @@
 if (isset($_REQUEST['stopids'])) {
     $stopids = explode(",", filter_var($_REQUEST['stopids'], FILTER_SANITIZE_STRING));
 }
+if (isset($_REQUEST['filterIncludeRoutes'])) {
+    $filterIncludeRoutes = explode(",", filter_var($_REQUEST['filterIncludeRoutes'], FILTER_SANITIZE_STRING));
+}
+if (isset($_REQUEST['filterHasStop'])) {
+    $filterHasStop = filter_var($_REQUEST['filterHasStop'], FILTER_SANITIZE_STRING);
+}
 if (isset($_REQUEST['tripid'])) {
     $tripid = filter_var($_REQUEST['tripid'], FILTER_SANITIZE_STRING);
 }

--- a/include/db/trip-dao.inc.php
+++ b/include/db/trip-dao.inc.php
@@ -51,6 +51,25 @@
     }
     return $query->fetchAll();
 }
+
+function getTripHasStop($tripID, $stopID) {
+        global $conn;
+    $query = "SELECT stop_id
+FROM stop_times
+join trips on trips.trip_id = stop_times.trip_id
+WHERE trips.trip_id = :tripID and stop_times.stop_id = :stopID";
+    debug($query, "database");
+    $query = $conn->prepare($query);
+    $query->bindParam(":tripID", $tripID);
+    $query->bindParam(":stopID", $stopID);
+    $query->execute();
+    if (!$query) {
+        databaseError($conn->errorInfo());
+        return Array();
+    }
+    return ($query->fetchColumn() > 0);
+}
+
 function getTripShape($tripID) {
     // todo, use shapes table if shape_id specified
     global $conn;

directory:a/js/FlashCanvas (deleted)
--- a/js/FlashCanvas
+++ /dev/null

--- /dev/null
+++ b/js/flot/excanvas.js
@@ -1,1 +1,1428 @@
-
+// Copyright 2006 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+// Known Issues:
+//
+// * Patterns only support repeat.
+// * Radial gradient are not implemented. The VML version of these look very
+//   different from the canvas one.
+// * Clipping paths are not implemented.
+// * Coordsize. The width and height attribute have higher priority than the
+//   width and height style values which isn't correct.
+// * Painting mode isn't implemented.
+// * Canvas width/height should is using content-box by default. IE in
+//   Quirks mode will draw the canvas using border-box. Either change your
+//   doctype to HTML5
+//   (http://www.whatwg.org/specs/web-apps/current-work/#the-doctype)
+//   or use Box Sizing Behavior from WebFX
+//   (http://webfx.eae.net/dhtml/boxsizing/boxsizing.html)
+// * Non uniform scaling does not correctly scale strokes.
+// * Filling very large shapes (above 5000 points) is buggy.
+// * Optimize. There is always room for speed improvements.
+
+// Only add this code if we do not already have a canvas implementation
+if (!document.createElement('canvas').getContext) {
+
+(function() {
+
+  // alias some functions to make (compiled) code shorter
+  var m = Math;
+  var mr = m.round;
+  var ms = m.sin;
+  var mc = m.cos;
+  var abs = m.abs;
+  var sqrt = m.sqrt;
+
+  // this is used for sub pixel precision
+  var Z = 10;
+  var Z2 = Z / 2;
+
+  /**
+   * This funtion is assigned to the <canvas> elements as element.getContext().
+   * @this {HTMLElement}
+   * @return {CanvasRenderingContext2D_}
+   */
+  function getContext() {
+    return this.context_ ||
+        (this.context_ = new CanvasRenderingContext2D_(this));
+  }
+
+  var slice = Array.prototype.slice;
+
+  /**
+   * Binds a function to an object. The returned function will always use the
+   * passed in {@code obj} as {@code this}.
+   *
+   * Example:
+   *
+   *   g = bind(f, obj, a, b)
+   *   g(c, d) // will do f.call(obj, a, b, c, d)
+   *
+   * @param {Function} f The function to bind the object to
+   * @param {Object} obj The object that should act as this when the function
+   *     is called
+   * @param {*} var_args Rest arguments that will be used as the initial
+   *     arguments when the function is called
+   * @return {Function} A new function that has bound this
+   */
+  function bind(f, obj, var_args) {
+    var a = slice.call(arguments, 2);
+    return function() {
+      return f.apply(obj, a.concat(slice.call(arguments)));
+    };
+  }
+
+  function encodeHtmlAttribute(s) {
+    return String(s).replace(/&/g, '&amp;').replace(/"/g, '&quot;');
+  }
+
+  function addNamespacesAndStylesheet(doc) {
+    // create xmlns
+    if (!doc.namespaces['g_vml_']) {
+      doc.namespaces.add('g_vml_', 'urn:schemas-microsoft-com:vml',
+                         '#default#VML');
+
+    }
+    if (!doc.namespaces['g_o_']) {
+      doc.namespaces.add('g_o_', 'urn:schemas-microsoft-com:office:office',
+                         '#default#VML');
+    }
+
+    // Setup default CSS.  Only add one style sheet per document
+    if (!doc.styleSheets['ex_canvas_']) {
+      var ss = doc.createStyleSheet();
+      ss.owningElement.id = 'ex_canvas_';
+      ss.cssText = 'canvas{display:inline-block;overflow:hidden;' +
+          // default size is 300x150 in Gecko and Opera
+          'text-align:left;width:300px;height:150px}';
+    }
+  }
+
+  // Add namespaces and stylesheet at startup.
+  addNamespacesAndStylesheet(document);
+
+  var G_vmlCanvasManager_ = {
+    init: function(opt_doc) {
+      if (/MSIE/.test(navigator.userAgent) && !window.opera) {
+        var doc = opt_doc || document;
+        // Create a dummy element so that IE will allow canvas elements to be
+        // recognized.
+        doc.createElement('canvas');
+        doc.attachEvent('onreadystatechange', bind(this.init_, this, doc));
+      }
+    },
+
+    init_: function(doc) {
+      // find all canvas elements
+      var els = doc.getElementsByTagName('canvas');
+      for (var i = 0; i < els.length; i++) {
+        this.initElement(els[i]);
+      }
+    },
+
+    /**
+     * Public initializes a canvas element so that it can be used as canvas
+     * element from now on. This is called automatically before the page is
+     * loaded but if you are creating elements using createElement you need to
+     * make sure this is called on the element.
+     * @param {HTMLElement} el The canvas element to initialize.
+     * @return {HTMLElement} the element that was created.
+     */
+    initElement: function(el) {
+      if (!el.getContext) {
+        el.getContext = getContext;
+
+        // Add namespaces and stylesheet to document of the element.
+        addNamespacesAndStylesheet(el.ownerDocument);
+
+        // Remove fallback content. There is no way to hide text nodes so we
+        // just remove all childNodes. We could hide all elements and remove
+        // text nodes but who really cares about the fallback content.
+        el.innerHTML = '';
+
+        // do not use inline function because that will leak memory
+        el.attachEvent('onpropertychange', onPropertyChange);
+        el.attachEvent('onresize', onResize);
+
+        var attrs = el.attributes;
+        if (attrs.width && attrs.width.specified) {
+          // TODO: use runtimeStyle and coordsize
+          // el.getContext().setWidth_(attrs.width.nodeValue);
+          el.style.width = attrs.width.nodeValue + 'px';
+        } else {
+          el.width = el.clientWidth;
+        }
+        if (attrs.height && attrs.height.specified) {
+          // TODO: use runtimeStyle and coordsize
+          // el.getContext().setHeight_(attrs.height.nodeValue);
+          el.style.height = attrs.height.nodeValue + 'px';
+        } else {
+          el.height = el.clientHeight;
+        }
+        //el.getContext().setCoordsize_()
+      }
+      return el;
+    }
+  };
+
+  function onPropertyChange(e) {
+    var el = e.srcElement;
+
+    switch (e.propertyName) {
+      case 'width':
+        el.getContext().clearRect();
+        el.style.width = el.attributes.width.nodeValue + 'px';
+        // In IE8 this does not trigger onresize.
+        el.firstChild.style.width =  el.clientWidth + 'px';
+        break;
+      case 'height':
+        el.getContext().clearRect();
+        el.style.height = el.attributes.height.nodeValue + 'px';
+        el.firstChild.style.height = el.clientHeight + 'px';
+        break;
+    }
+  }
+
+  function onResize(e) {
+    var el = e.srcElement;
+    if (el.firstChild) {
+      el.firstChild.style.width =  el.clientWidth + 'px';
+      el.firstChild.style.height = el.clientHeight + 'px';
+    }
+  }
+
+  G_vmlCanvasManager_.init();
+
+  // precompute "00" to "FF"
+  var decToHex = [];
+  for (var i = 0; i < 16; i++) {
+    for (var j = 0; j < 16; j++) {
+      decToHex[i * 16 + j] = i.toString(16) + j.toString(16);
+    }
+  }
+
+  function createMatrixIdentity() {
+    return [
+      [1, 0, 0],
+      [0, 1, 0],
+      [0, 0, 1]
+    ];
+  }
+
+  function matrixMultiply(m1, m2) {
+    var result = createMatrixIdentity();
+
+    for (var x = 0; x < 3; x++) {
+      for (var y = 0; y < 3; y++) {
+        var sum = 0;
+
+        for (var z = 0; z < 3; z++) {
+          sum += m1[x][z] * m2[z][y];
+        }
+
+        result[x][y] = sum;
+      }
+    }
+    return result;
+  }
+
+  function copyState(o1, o2) {
+    o2.fillStyle     = o1.fillStyle;
+    o2.lineCap       = o1.lineCap;
+    o2.lineJoin      = o1.lineJoin;
+    o2.lineWidth     = o1.lineWidth;
+    o2.miterLimit    = o1.miterLimit;
+    o2.shadowBlur    = o1.shadowBlur;
+    o2.shadowColor   = o1.shadowColor;
+    o2.shadowOffsetX = o1.shadowOffsetX;
+    o2.shadowOffsetY = o1.shadowOffsetY;
+    o2.strokeStyle   = o1.strokeStyle;
+    o2.globalAlpha   = o1.globalAlpha;
+    o2.font          = o1.font;
+    o2.textAlign     = o1.textAlign;
+    o2.textBaseline  = o1.textBaseline;
+    o2.arcScaleX_    = o1.arcScaleX_;
+    o2.arcScaleY_    = o1.arcScaleY_;
+    o2.lineScale_    = o1.lineScale_;
+  }
+
+  var colorData = {
+    aliceblue: '#F0F8FF',
+    antiquewhite: '#FAEBD7',
+    aquamarine: '#7FFFD4',
+    azure: '#F0FFFF',
+    beige: '#F5F5DC',
+    bisque: '#FFE4C4',
+    black: '#000000',
+    blanchedalmond: '#FFEBCD',
+    blueviolet: '#8A2BE2',
+    brown: '#A52A2A',
+    burlywood: '#DEB887',
+    cadetblue: '#5F9EA0',
+    chartreuse: '#7FFF00',
+    chocolate: '#D2691E',
+    coral: '#FF7F50',
+    cornflowerblue: '#6495ED',
+    cornsilk: '#FFF8DC',
+    crimson: '#DC143C',
+    cyan: '#00FFFF',
+    darkblue: '#00008B',
+    darkcyan: '#008B8B',
+    darkgoldenrod: '#B8860B',
+    darkgray: '#A9A9A9',
+    darkgreen: '#006400',
+    darkgrey: '#A9A9A9',
+    darkkhaki: '#BDB76B',
+    darkmagenta: '#8B008B',
+    darkolivegreen: '#556B2F',
+    darkorange: '#FF8C00',
+    darkorchid: '#9932CC',
+    darkred: '#8B0000',
+    darksalmon: '#E9967A',
+    darkseagreen: '#8FBC8F',
+    darkslateblue: '#483D8B',
+    darkslategray: '#2F4F4F',
+    darkslategrey: '#2F4F4F',
+    darkturquoise: '#00CED1',
+    darkviolet: '#9400D3',
+    deeppink: '#FF1493',
+    deepskyblue: '#00BFFF',
+    dimgray: '#696969',
+    dimgrey: '#696969',
+    dodgerblue: '#1E90FF',
+    firebrick: '#B22222',
+    floralwhite: '#FFFAF0',
+    forestgreen: '#228B22',
+    gainsboro: '#DCDCDC',
+    ghostwhite: '#F8F8FF',
+    gold: '#FFD700',
+    goldenrod: '#DAA520',
+    grey: '#808080',
+    greenyellow: '#ADFF2F',
+    honeydew: '#F0FFF0',
+    hotpink: '#FF69B4',
+    indianred: '#CD5C5C',
+    indigo: '#4B0082',
+    ivory: '#FFFFF0',
+    khaki: '#F0E68C',
+    lavender: '#E6E6FA',
+    lavenderblush: '#FFF0F5',
+    lawngreen: '#7CFC00',
+    lemonchiffon: '#FFFACD',
+    lightblue: '#ADD8E6',
+    lightcoral: '#F08080',
+    lightcyan: '#E0FFFF',
+    lightgoldenrodyellow: '#FAFAD2',
+    lightgreen: '#90EE90',
+    lightgrey: '#D3D3D3',
+    lightpink: '#FFB6C1',
+    lightsalmon: '#FFA07A',
+    lightseagreen: '#20B2AA',
+    lightskyblue: '#87CEFA',
+    lightslategray: '#778899',
+    lightslategrey: '#778899',
+    lightsteelblue: '#B0C4DE',
+    lightyellow: '#FFFFE0',
+    limegreen: '#32CD32',
+    linen: '#FAF0E6',
+    magenta: '#FF00FF',
+    mediumaquamarine: '#66CDAA',
+    mediumblue: '#0000CD',
+    mediumorchid: '#BA55D3',
+    mediumpurple: '#9370DB',
+    mediumseagreen: '#3CB371',
+    mediumslateblue: '#7B68EE',
+    mediumspringgreen: '#00FA9A',
+    mediumturquoise: '#48D1CC',
+    mediumvioletred: '#C71585',
+    midnightblue: '#191970',
+    mintcream: '#F5FFFA',
+    mistyrose: '#FFE4E1',
+    moccasin: '#FFE4B5',
+    navajowhite: '#FFDEAD',
+    oldlace: '#FDF5E6',
+    olivedrab: '#6B8E23',
+    orange: '#FFA500',
+    orangered: '#FF4500',
+    orchid: '#DA70D6',
+    palegoldenrod: '#EEE8AA',
+    palegreen: '#98FB98',
+    paleturquoise: '#AFEEEE',
+    palevioletred: '#DB7093',
+    papayawhip: '#FFEFD5',
+    peachpuff: '#FFDAB9',
+    peru: '#CD853F',
+    pink: '#FFC0CB',
+    plum: '#DDA0DD',
+    powderblue: '#B0E0E6',
+    rosybrown: '#BC8F8F',
+    royalblue: '#4169E1',
+    saddlebrown: '#8B4513',
+    salmon: '#FA8072',
+    sandybrown: '#F4A460',
+    seagreen: '#2E8B57',
+    seashell: '#FFF5EE',
+    sienna: '#A0522D',
+    skyblue: '#87CEEB',
+    slateblue: '#6A5ACD',
+    slategray: '#708090',
+    slategrey: '#708090',
+    snow: '#FFFAFA',
+    springgreen: '#00FF7F',
+    steelblue: '#4682B4',
+    tan: '#D2B48C',
+    thistle: '#D8BFD8',
+    tomato: '#FF6347',
+    turquoise: '#40E0D0',
+    violet: '#EE82EE',
+    wheat: '#F5DEB3',
+    whitesmoke: '#F5F5F5',
+    yellowgreen: '#9ACD32'
+  };
+
+
+  function getRgbHslContent(styleString) {
+    var start = styleString.indexOf('(', 3);
+    var end = styleString.indexOf(')', start + 1);
+    var parts = styleString.substring(start + 1, end).split(',');
+    // add alpha if needed
+    if (parts.length == 4 && styleString.substr(3, 1) == 'a') {
+      alpha = Number(parts[3]);
+    } else {
+      parts[3] = 1;
+    }
+    return parts;
+  }
+
+  function percent(s) {
+    return parseFloat(s) / 100;
+  }
+
+  function clamp(v, min, max) {
+    return Math.min(max, Math.max(min, v));
+  }
+
+  function hslToRgb(parts){
+    var r, g, b;
+    h = parseFloat(parts[0]) / 360 % 360;
+    if (h < 0)
+      h++;
+    s = clamp(percent(parts[1]), 0, 1);
+    l = clamp(percent(parts[2]), 0, 1);
+    if (s == 0) {
+      r = g = b = l; // achromatic
+    } else {
+      var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
+      var p = 2 * l - q;
+      r = hueToRgb(p, q, h + 1 / 3);
+      g = hueToRgb(p, q, h);
+      b = hueToRgb(p, q, h - 1 / 3);
+    }
+
+    return '#' + decToHex[Math.floor(r * 255)] +
+        decToHex[Math.floor(g * 255)] +
+        decToHex[Math.floor(b * 255)];
+  }
+
+  function hueToRgb(m1, m2, h) {
+    if (h < 0)
+      h++;
+    if (h > 1)
+      h--;
+
+    if (6 * h < 1)
+      return m1 + (m2 - m1) * 6 * h;
+    else if (2 * h < 1)
+      return m2;
+    else if (3 * h < 2)
+      return m1 + (m2 - m1) * (2 / 3 - h) * 6;
+    else
+      return m1;
+  }
+
+  function processStyle(styleString) {
+    var str, alpha = 1;
+
+    styleString = String(styleString);
+    if (styleString.charAt(0) == '#') {
+      str = styleString;
+    } else if (/^rgb/.test(styleString)) {
+      var parts = getRgbHslContent(styleString);
+      var str = '#', n;
+      for (var i = 0; i < 3; i++) {
+        if (parts[i].indexOf('%') != -1) {
+          n = Math.floor(percent(parts[i]) * 255);
+        } else {
+          n = Number(parts[i]);
+        }
+        str += decToHex[clamp(n, 0, 255)];
+      }
+      alpha = parts[3];
+    } else if (/^hsl/.test(styleString)) {
+      var parts = getRgbHslContent(styleString);
+      str = hslToRgb(parts);
+      alpha = parts[3];
+    } else {
+      str = colorData[styleString] || styleString;
+    }
+    return {color: str, alpha: alpha};
+  }
+
+  var DEFAULT_STYLE = {
+    style: 'normal',
+    variant: 'normal',
+    weight: 'normal',
+    size: 10,
+    family: 'sans-serif'
+  };
+
+  // Internal text style cache
+  var fontStyleCache = {};
+
+  function processFontStyle(styleString) {
+    if (fontStyleCache[styleString]) {
+      return fontStyleCache[styleString];
+    }
+
+    var el = document.createElement('div');
+    var style = el.style;
+    try {
+      style.font = styleString;
+    } catch (ex) {
+      // Ignore failures to set to invalid font.
+    }
+
+    return fontStyleCache[styleString] = {
+      style: style.fontStyle || DEFAULT_STYLE.style,
+      variant: style.fontVariant || DEFAULT_STYLE.variant,
+      weight: style.fontWeight || DEFAULT_STYLE.weight,
+      size: style.fontSize || DEFAULT_STYLE.size,
+      family: style.fontFamily || DEFAULT_STYLE.family
+    };
+  }
+
+  function getComputedStyle(style, element) {
+    var computedStyle = {};
+
+    for (var p in style) {
+      computedStyle[p] = style[p];
+    }
+
+    // Compute the size
+    var canvasFontSize = parseFloat(element.currentStyle.fontSize),
+        fontSize = parseFloat(style.size);
+
+    if (typeof style.size == 'number') {
+      computedStyle.size = style.size;
+    } else if (style.size.indexOf('px') != -1) {
+      computedStyle.size = fontSize;
+    } else if (style.size.indexOf('em') != -1) {
+      computedStyle.size = canvasFontSize * fontSize;
+    } else if(style.size.indexOf('%') != -1) {
+      computedStyle.size = (canvasFontSize / 100) * fontSize;
+    } else if (style.size.indexOf('pt') != -1) {
+      computedStyle.size = fontSize / .75;
+    } else {
+      computedStyle.size = canvasFontSize;
+    }
+
+    // Different scaling between normal text and VML text. This was found using
+    // trial and error to get the same size as non VML text.
+    computedStyle.size *= 0.981;
+
+    return computedStyle;
+  }
+
+  function buildStyle(style) {
+    return style.style + ' ' + style.variant + ' ' + style.weight + ' ' +
+        style.size + 'px ' + style.family;
+  }
+
+  function processLineCap(lineCap) {
+    switch (lineCap) {
+      case 'butt':
+        return 'flat';
+      case 'round':
+        return 'round';
+      case 'square':
+      default:
+        return 'square';
+    }
+  }
+
+  /**
+   * This class implements CanvasRenderingContext2D interface as described by
+   * the WHATWG.
+   * @param {HTMLElement} surfaceElement The element that the 2D context should
+   * be associated with
+   */
+  function CanvasRenderingContext2D_(surfaceElement) {
+    this.m_ = createMatrixIdentity();
+
+    this.mStack_ = [];
+    this.aStack_ = [];
+    this.currentPath_ = [];
+
+    // Canvas context properties
+    this.strokeStyle = '#000';
+    this.fillStyle = '#000';
+
+    this.lineWidth = 1;
+    this.lineJoin = 'miter';
+    this.lineCap = 'butt';
+    this.miterLimit = Z * 1;
+    this.globalAlpha = 1;
+    this.font = '10px sans-serif';
+    this.textAlign = 'left';
+    this.textBaseline = 'alphabetic';
+    this.canvas = surfaceElement;
+
+    var el = surfaceElement.ownerDocument.createElement('div');
+    el.style.width =  surfaceElement.clientWidth + 'px';
+    el.style.height = surfaceElement.clientHeight + 'px';
+    el.style.overflow = 'hidden';
+    el.style.position = 'absolute';
+    surfaceElement.appendChild(el);
+
+    this.element_ = el;
+    this.arcScaleX_ = 1;
+    this.arcScaleY_ = 1;
+    this.lineScale_ = 1;
+  }
+
+  var contextPrototype = CanvasRenderingContext2D_.prototype;
+  contextPrototype.clearRect = function() {
+    if (this.textMeasureEl_) {
+      this.textMeasureEl_.removeNode(true);
+      this.textMeasureEl_ = null;
+    }
+    this.element_.innerHTML = '';
+  };
+
+  contextPrototype.beginPath = function() {
+    // TODO: Branch current matrix so that save/restore has no effect
+    //       as per safari docs.
+    this.currentPath_ = [];
+  };
+
+  contextPrototype.moveTo = function(aX, aY) {
+    var p = this.getCoords_(aX, aY);
+    this.currentPath_.push({type: 'moveTo', x: p.x, y: p.y});
+    this.currentX_ = p.x;
+    this.currentY_ = p.y;
+  };
+
+  contextPrototype.lineTo = function(aX, aY) {
+    var p = this.getCoords_(aX, aY);
+    this.currentPath_.push({type: 'lineTo', x: p.x, y: p.y});
+
+    this.currentX_ = p.x;
+    this.currentY_ = p.y;
+  };
+
+  contextPrototype.bezierCurveTo = function(aCP1x, aCP1y,
+                                            aCP2x, aCP2y,
+                                            aX, aY) {
+    var p = this.getCoords_(aX, aY);
+    var cp1 = this.getCoords_(aCP1x, aCP1y);
+    var cp2 = this.getCoords_(aCP2x, aCP2y);
+    bezierCurveTo(this, cp1, cp2, p);
+  };
+
+  // Helper function that takes the already fixed cordinates.
+  function bezierCurveTo(self, cp1, cp2, p) {
+    self.currentPath_.push({
+      type: 'bezierCurveTo',
+      cp1x: cp1.x,
+      cp1y: cp1.y,
+      cp2x: cp2.x,
+      cp2y: cp2.y,
+      x: p.x,
+      y: p.y
+    });
+    self.currentX_ = p.x;
+    self.currentY_ = p.y;
+  }
+
+  contextPrototype.quadraticCurveTo = function(aCPx, aCPy, aX, aY) {
+    // the following is lifted almost directly from
+    // http://developer.mozilla.org/en/docs/Canvas_tutorial:Drawing_shapes
+
+    var cp = this.getCoords_(aCPx, aCPy);
+    var p = this.getCoords_(aX, aY);
+
+    var cp1 = {
+      x: this.currentX_ + 2.0 / 3.0 * (cp.x - this.currentX_),
+      y: this.currentY_ + 2.0 / 3.0 * (cp.y - this.currentY_)
+    };
+    var cp2 = {
+      x: cp1.x + (p.x - this.currentX_) / 3.0,
+      y: cp1.y + (p.y - this.currentY_) / 3.0
+    };
+
+    bezierCurveTo(this, cp1, cp2, p);
+  };
+
+  contextPrototype.arc = function(aX, aY, aRadius,
+                                  aStartAngle, aEndAngle, aClockwise) {
+    aRadius *= Z;
+    var arcType = aClockwise ? 'at' : 'wa';
+
+    var xStart = aX + mc(aStartAngle) * aRadius - Z2;
+    var yStart = aY + ms(aStartAngle) * aRadius - Z2;
+
+    var xEnd = aX + mc(aEndAngle) * aRadius - Z2;
+    var yEnd = aY + ms(aEndAngle) * aRadius - Z2;
+
+    // IE won't render arches drawn counter clockwise if xStart == xEnd.
+    if (xStart == xEnd && !aClockwise) {
+      xStart += 0.125; // Offset xStart by 1/80 of a pixel. Use something
+                       // that can be represented in binary
+    }
+
+    var p = this.getCoords_(aX, aY);
+    var pStart = this.getCoords_(xStart, yStart);
+    var pEnd = this.getCoords_(xEnd, yEnd);
+
+    this.currentPath_.push({type: arcType,
+                           x: p.x,
+                           y: p.y,
+                           radius: aRadius,
+                           xStart: pStart.x,
+                           yStart: pStart.y,
+                           xEnd: pEnd.x,
+                           yEnd: pEnd.y});
+
+  };
+
+  contextPrototype.rect = function(aX, aY, aWidth, aHeight) {
+    this.moveTo(aX, aY);
+    this.lineTo(aX + aWidth, aY);
+    this.lineTo(aX + aWidth, aY + aHeight);
+    this.lineTo(aX, aY + aHeight);
+    this.closePath();
+  };
+
+  contextPrototype.strokeRect = function(aX, aY, aWidth, aHeight) {
+    var oldPath = this.currentPath_;
+    this.beginPath();
+
+    this.moveTo(aX, aY);
+    this.lineTo(aX + aWidth, aY);
+    this.lineTo(aX + aWidth, aY + aHeight);
+    this.lineTo(aX, aY + aHeight);
+    this.closePath();
+    this.stroke();
+
+    this.currentPath_ = oldPath;
+  };
+
+  contextPrototype.fillRect = function(aX, aY, aWidth, aHeight) {
+    var oldPath = this.currentPath_;
+    this.beginPath();
+
+    this.moveTo(aX, aY);
+    this.lineTo(aX + aWidth, aY);
+    this.lineTo(aX + aWidth, aY + aHeight);
+    this.lineTo(aX, aY + aHeight);
+    this.closePath();
+    this.fill();
+
+    this.currentPath_ = oldPath;
+  };
+
+  contextPrototype.createLinearGradient = function(aX0, aY0, aX1, aY1) {
+    var gradient = new CanvasGradient_('gradient');
+    gradient.x0_ = aX0;
+    gradient.y0_ = aY0;
+    gradient.x1_ = aX1;
+    gradient.y1_ = aY1;
+    return gradient;
+  };
+
+  contextPrototype.createRadialGradient = function(aX0, aY0, aR0,
+                                                   aX1, aY1, aR1) {
+    var gradient = new CanvasGradient_('gradientradial');
+    gradient.x0_ = aX0;
+    gradient.y0_ = aY0;
+    gradient.r0_ = aR0;
+    gradient.x1_ = aX1;
+    gradient.y1_ = aY1;
+    gradient.r1_ = aR1;
+    return gradient;
+  };
+
+  contextPrototype.drawImage = function(image, var_args) {
+    var dx, dy, dw, dh, sx, sy, sw, sh;
+
+    // to find the original width we overide the width and height
+    var oldRuntimeWidth = image.runtimeStyle.width;
+    var oldRuntimeHeight = image.runtimeStyle.height;
+    image.runtimeStyle.width = 'auto';
+    image.runtimeStyle.height = 'auto';
+
+    // get the original size
+    var w = image.width;
+    var h = image.height;
+
+    // and remove overides
+    image.runtimeStyle.width = oldRuntimeWidth;
+    image.runtimeStyle.height = oldRuntimeHeight;
+
+    if (arguments.length == 3) {
+      dx = arguments[1];
+      dy = arguments[2];
+      sx = sy = 0;
+      sw = dw = w;
+      sh = dh = h;
+    } else if (arguments.length == 5) {
+      dx = arguments[1];
+      dy = arguments[2];
+      dw = arguments[3];
+      dh = arguments[4];
+      sx = sy = 0;
+      sw = w;
+      sh = h;
+    } else if (arguments.length == 9) {
+      sx = arguments[1];
+      sy = arguments[2];
+      sw = arguments[3];
+      sh = arguments[4];
+      dx = arguments[5];
+      dy = arguments[6];
+      dw = arguments[7];
+      dh = arguments[8];
+    } else {
+      throw Error('Invalid number of arguments');
+    }
+
+    var d = this.getCoords_(dx, dy);
+
+    var w2 = sw / 2;
+    var h2 = sh / 2;
+
+    var vmlStr = [];
+
+    var W = 10;
+    var H = 10;
+
+    // For some reason that I've now forgotten, using divs didn't work
+    vmlStr.push(' <g_vml_:group',
+                ' coordsize="', Z * W, ',', Z * H, '"',
+                ' coordorigin="0,0"' ,
+                ' style="width:', W, 'px;height:', H, 'px;position:absolute;');
+
+    // If filters are necessary (rotation exists), create them
+    // filters are bog-slow, so only create them if abbsolutely necessary
+    // The following check doesn't account for skews (which don't exist
+    // in the canvas spec (yet) anyway.
+
+    if (this.m_[0][0] != 1 || this.m_[0][1] ||
+        this.m_[1][1] != 1 || this.m_[1][0]) {
+      var filter = [];
+
+      // Note the 12/21 reversal
+      filter.push('M11=', this.m_[0][0], ',',
+                  'M12=', this.m_[1][0], ',',
+                  'M21=', this.m_[0][1], ',',
+                  'M22=', this.m_[1][1], ',',
+                  'Dx=', mr(d.x / Z), ',',
+                  'Dy=', mr(d.y / Z), '');
+
+      // Bounding box calculation (need to minimize displayed area so that
+      // filters don't waste time on unused pixels.
+      var max = d;
+      var c2 = this.getCoords_(dx + dw, dy);
+      var c3 = this.getCoords_(dx, dy + dh);
+      var c4 = this.getCoords_(dx + dw, dy + dh);
+
+      max.x = m.max(max.x, c2.x, c3.x, c4.x);
+      max.y = m.max(max.y, c2.y, c3.y, c4.y);