text:     /**
      * o------------------------------------------------------------------------------o
      * | This file is part of the RGraph package - you can learn more at:             |
      * |                                                                              |
      * |                          http://www.rgraph.net                               |
      * |                                                                              |
      * | This package is licensed under the RGraph license. For all kinds of business |
      * | purposes there is a small one-time licensing fee to pay and for non          |
      * | commercial  purposes it is free to use. You can read the full license here:  |
      * |                                                                              |
      * |                      http://www.rgraph.net/LICENSE.txt                       |
      * o------------------------------------------------------------------------------o
      */
      
      if (typeof(RGraph) == 'undefined') RGraph = {};
  
      /**
      * The line chart constructor
      * 
      * @param object canvas The cxanvas object
      * @param array  data   The chart data
      * @param array  ...    Other lines to plot
      */
      RGraph.Gauge = function (id, min, max, value)
      {
          // Get the canvas and context objects
          this.id                = id;
          this.canvas            = document.getElementById(id);
          this.context           = this.canvas.getContext ? this.canvas.getContext("2d") : null;
          this.canvas.__object__ = this;
          this.type              = 'gauge';
          this.min               = min;
          this.max               = max;
          this.value             = value;
          this.isRGraph          = true;
          this.currentValue      = null;
          this.uid               = RGraph.CreateUID();
          this.canvas.uid        = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();
          this.colorsParsed      = false;
  
          /**
          * Range checking
          */
          if (typeof(this.value) == 'object') {
              for (var i=0; i<this.value.length; ++i) {
                  if (this.value[i] > this.max) this.value[i] = max;
                  if (this.value[i] < this.min) this.value[i] = min;
              }
          } else {
              if (this.value > this.max) this.value = max;
              if (this.value < this.min) this.value = min;
          }
  
  
  
          /**
          * Compatibility with older browsers
          */
          RGraph.OldBrowserCompat(this.context);
  
  
          // Various config type stuff
          this.properties = {
              'chart.angles.start':  null,
              'chart.angles.end':    null,
              'chart.centerx':       null,
              'chart.centery':       null,
              'chart.radius':        null,
              'chart.gutter.left':   15,
              'chart.gutter.right':  15,
              'chart.gutter.top':    15,
              'chart.gutter.bottom': 15,
              'chart.border.width':  10,
              'chart.title.top':     '',
              'chart.title.top.font':'Arial',
              'chart.title.top.size':14,
              'chart.title.top.color':'#333',
              'chart.title.top.bold':false,
              'chart.title.top.pos': null,
              'chart.title.bottom':  '',
              'chart.title.bottom.font':'Arial',
              'chart.title.bottom.size':14,
              'chart.title.bottom.color':'#333',
              'chart.title.bottom.bold':false,
              'chart.title.bottom.pos':null,
              'chart.text.font':    'Arial',
              'chart.text.align':    'top',
              'chart.text.x':         null,
              'chart.text.y':         null,
              'chart.text.color':     '#666',
              'chart.text.size':      10,
              'chart.background.color': 'white',
              'chart.background.gradient': false,
              'chart.scale.decimals': 0,
              'chart.scale.point':    '.',
              'chart.scale.thousand': ',',
              'chart.units.pre':      '',
              'chart.units.post':     '',
              'chart.value.text':     false,
              'chart.value.text.y.pos': 0.5,
              'chart.value.text.units.pre': null,
              'chart.value.text.units.post': null,
              'chart.red.start':      0.9 * this.max,
              'chart.red.color':      '#DC3912',
              'chart.yellow.color':   '#FF9900',
              'chart.green.end':      0.7 * this.max,
              'chart.green.color':    'rgba(0,0,0,0)',
              'chart.colors.ranges':  null,
              'chart.needle.size':    null,
              'chart.needle.tail':    false,
              'chart.needle.colors':   ['#D5604D', 'red', 'green', 'yellow'],
              'chart.needle.type':     'triangle',
              'chart.border.outer':     '#ccc',
              'chart.border.inner':     '#f1f1f1',
              'chart.border.outline':   'black',
              'chart.centerpin':         true,
              'chart.centerpin.color':  'blue',
              'chart.centerpin.radius': null,
              'chart.zoom.background':  true,
              'chart.zoom.action':      'zoom',
              'chart.tickmarks.small':  25,
              'chart.tickmarks.small.color': 'black',
              'chart.tickmarks.medium': 0,
              'chart.tickmarks.medium.color': 'black',
              'chart.tickmarks.big':    5,
              'chart.tickmarks.big.color': 'black',
              'chart.labels.count':     5,
              'chart.labels.centered':  false,
              'chart.labels.offset':    0,
              'chart.border.gradient':  false,
              'chart.adjustable':       false,
              'chart.shadow':           true,
              'chart.shadow.color':     'gray',
              'chart.shadow.offsetx':   0,
              'chart.shadow.offsety':   0,
              'chart.shadow.blur':      15
          }
  
  
          /**
          * Register the object
          */
          RGraph.Register(this);
      }
  
  
  
      /**
      * An all encompassing accessor
      * 
      * @param string name The name of the property
      * @param mixed value The value of the property
      */
      RGraph.Gauge.prototype.Set = function (name, value)
      {
          /**
          * Title compatibility
          */
          if (name == 'chart.title')       name = 'chart.title.top';
          if (name == 'chart.title.font')  name = 'chart.title.top.font';
          if (name == 'chart.title.size')  name = 'chart.title.top.size';
          if (name == 'chart.title.color') name = 'chart.title.top.color';
          if (name == 'chart.title.bold')  name = 'chart.title.top.bold';
  
          // BC
          if (name == 'chart.needle.color') {
              name = 'chart.needle.colors';
          }
  
          this.properties[name] = value;
      }
  
  
      /**
      * An all encompassing accessor
      * 
      * @param string name The name of the property
      */
      RGraph.Gauge.prototype.Get = function (name)
      {
          // BC
          if (name == 'chart.needle.color') {
              name = 'chart.needle.colors';
          }
  
          return this.properties[name];
      }
  
  
      /**
      * The function you call to draw the line chart
      * 
      * @param bool An optional bool used internally to ditinguish whether the
      *             line chart is being called by the bar chart
      */
      RGraph.Gauge.prototype.Draw = function ()
      {
          /**
          * Fire the onbeforedraw event
          */
          RGraph.FireCustomEvent(this, 'onbeforedraw');
  
  
  
          /**
          * Store the value (for animation primarily
          */
          this.currentValue = this.value;
  
  
          /**
          * This is new in May 2011 and facilitates indiviual gutter settings,
          * eg chart.gutter.left
          */
          this.gutterLeft   = this.Get('chart.gutter.left');
          this.gutterRight  = this.Get('chart.gutter.right');
          this.gutterTop    = this.Get('chart.gutter.top');
          this.gutterBottom = this.Get('chart.gutter.bottom');
          
          this.centerx = ((this.canvas.width - this.gutterLeft - this.gutterRight) / 2) + this.gutterLeft;
          this.centery = ((this.canvas.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop;
          this.radius  = Math.min(
                                  ((this.canvas.width - this.gutterLeft - this.gutterRight) / 2),
                                  ((this.canvas.height - this.gutterTop - this.gutterBottom) / 2)
                                 );
          this.startAngle = this.properties['chart.angles.start'] ? this.properties['chart.angles.start'] : (HALFPI / 3) + HALFPI;
          this.endAngle   = this.properties['chart.angles.end'] ? this.properties['chart.angles.end'] : TWOPI + HALFPI - (HALFPI / 3);
  
  
  
          /**
          * You can now override the positioning and radius if you so wish.
          */
          if (typeof(this.Get('chart.centerx')) == 'number') this.centerx = this.Get('chart.centerx');
          if (typeof(this.Get('chart.centery')) == 'number') this.centery = this.Get('chart.centery');
          if (typeof(this.Get('chart.radius')) == 'number')  this.radius = this.Get('chart.radius');
  
          /**
          * Parse the colors. This allows for simple gradient syntax
          */
          if (!this.colorsParsed) {
              this.parseColors();
              
              // Don't want to do this again
              this.colorsParsed = true;
          }
  
  
          // This has to be in the constructor
          this.centerpinRadius = 0.16 * this.radius;
          
          if (typeof(this.Get('chart.centerpin.radius')) == 'number') {
              this.centerpinRadius = this.Get('chart.centerpin.radius');
          }
  
  
  
          /**
          * Setup the context menu if required
          */
          if (this.Get('chart.contextmenu')) {
              RGraph.ShowContext(this);
          }
  
  
  
          // DRAW THE CHART HERE
          this.DrawBackGround();
          this.DrawGradient();
          this.DrawColorBands();
          this.DrawSmallTickmarks();
          this.DrawMediumTickmarks();
          this.DrawBigTickmarks();
          this.DrawLabels();
          this.DrawTopTitle();
          this.DrawBottomTitle();
  
          if (typeof(this.value) == 'object') {
              for (var i=0; i<this.value.length; ++i) {
                  this.DrawNeedle(this.value[i], this.Get('chart.needle.colors')[i], i);
              }
          } else {
              this.DrawNeedle(this.value, this.Get('chart.needle.colors')[0], 0);
          }
  
          this.DrawCenterpin();
          
          /**
          * This function enables resizing
          */
          if (this.Get('chart.resizable')) {
              RGraph.AllowResizing(this);
          }
  
  
          /**
          * This installs the event listeners
          */
          RGraph.InstallEventListeners(this);
  
          
          /**
          * Fire the RGraph ondraw event
          */
          RGraph.FireCustomEvent(this, 'ondraw');
      }
  
  
      /**
      * Draw the background
      */
      RGraph.Gauge.prototype.DrawBackGround = function ()
      {
          // Shadow //////////////////////////////////////////////
          if (this.Get('chart.shadow')) {
              RGraph.SetShadow(this, this.Get('chart.shadow.color'), this.Get('chart.shadow.offsetx'), this.Get('chart.shadow.offsety'), this.Get('chart.shadow.blur'));
          }
          
          this.context.beginPath();
              this.context.fillStyle = this.Get('chart.background.color');
              //this.context.moveTo(this.centerx, this.centery)
              this.context.arc(this.centerx, this.centery, this.radius, 0, TWOPI, 0);
          this.context.fill();
          
          // Turn off the shadow
          RGraph.NoShadow(this);
          // Shadow //////////////////////////////////////////////
  
  
          var grad = this.context.createRadialGradient(this.centerx + 50, this.centery - 50, 0, this.centerx + 50, this.centery - 50, 150);
          grad.addColorStop(0, '#eee');
          grad.addColorStop(1, 'white');
  
          var borderWidth = this.Get('chart.border.width');
  
          this.context.beginPath();
              this.context.fillStyle = this.Get('chart.background.color');
              this.context.arc(this.centerx, this.centery, this.radius, 0, TWOPI, 0);
          this.context.fill();
  
          /**
          * Draw the gray circle
          */
          this.context.beginPath();
              this.context.fillStyle = this.Get('chart.border.outer');
              this.context.arc(this.centerx, this.centery, this.radius, 0, TWOPI, 0);
          this.context.fill();
  
          /**
          * Draw the light gray inner border
          */
          this.context.beginPath();
              this.context.fillStyle = this.Get('chart.border.inner');
              this.context.arc(this.centerx, this.centery, this.radius - borderWidth, 0, TWOPI, 0);
          this.context.fill();
  
  
  
          // Draw the white circle inner border
          this.context.beginPath();
              this.context.fillStyle = this.properties['chart.background.color'];
              this.context.arc(this.centerx, this.centery, this.radius - borderWidth - 4, 0, TWOPI, 0);
          this.context.fill();
  
  
  
          // Draw the circle background. Can be any colour now.
          this.context.beginPath();
              this.context.fillStyle = this.Get('chart.background.color');
              this.context.arc(this.centerx, this.centery, this.radius - borderWidth - 4, 0, TWOPI, 0);
          this.context.fill();
  
          if (this.Get('chart.background.gradient')) {
              // Draw a partially transparent gradient that sits on top of the background
              this.context.beginPath();
                  this.context.fillStyle = RGraph.RadialGradient(this,
                                                                 this.centerx,
                                                                 this.centery,
                                                                 0,
                                                                 this.centerx,
                                                                 this.centery,
                                                                 this.radius,
                                                                 'rgba(255,255,255,0.4)',
                                                                 'rgba(255,255,255,0.1)');
                  this.context.arc(this.centerx, this.centery, this.radius - borderWidth - 4, 0, TWOPI, 0);
              this.context.fill();
          }
  
  
  
          // Draw a black border around the chart
          this.context.beginPath();
              this.context.strokeStyle = this.Get('chart.border.outline');
              this.context.arc(this.centerx, this.centery, this.radius, 0, TWOPI, 0);
          this.context.stroke();
      }
  
  
      /**
      * This function draws the smaller tickmarks
      */
      RGraph.Gauge.prototype.DrawSmallTickmarks = function ()
      {
          var numTicks = this.Get('chart.tickmarks.small');
          this.context.lineWidth = 1;
  
          for (var i=0; i<=numTicks; ++i) {
              this.context.beginPath();
                  this.context.strokeStyle = this.Get('chart.tickmarks.small.color');
                  var a = (((this.endAngle - this.startAngle) / numTicks) * i) + this.startAngle;
                  this.context.arc(this.centerx, this.centery, this.radius - this.Get('chart.border.width') - 10, a, a + 0.00001, 0);
                  this.context.arc(this.centerx, this.centery, this.radius - this.Get('chart.border.width') - 10 - 5, a, a + 0.00001, 0);
              this.context.stroke();
          }
      }
  
  
      /**
      * This function draws the medium sized tickmarks
      */
      RGraph.Gauge.prototype.DrawMediumTickmarks = function ()
      {
          if (this.Get('chart.tickmarks.medium')) {
  
              var numTicks = this.Get('chart.tickmarks.medium');
              this.context.lineWidth = 3;
              this.context.lineCap   = 'round';
              this.context.strokeStyle = this.Get('chart.tickmarks.medium.color');
      
              for (var i=0; i<=numTicks; ++i) {
                  this.context.beginPath();
                      var a = (((this.endAngle - this.startAngle) / numTicks) * i) + this.startAngle + (((this.endAngle - this.startAngle) / (2 * numTicks)));
                      
                      if (a > this.startAngle && a< this.endAngle) {
                          this.context.arc(this.centerx, this.centery, this.radius - this.Get('chart.border.width') - 10, a, a + 0.00001, 0);
                          this.context.arc(this.centerx, this.centery, this.radius - this.Get('chart.border.width') - 10 - 6, a, a + 0.00001, 0);
                      }
                  this.context.stroke();
              }
          }
      }
  
  
      /**
      * This function draws the large, bold tickmarks
      */
      RGraph.Gauge.prototype.DrawBigTickmarks = function ()
      {
          var numTicks = this.Get('chart.tickmarks.big');
          this.context.lineWidth = 3;
          this.context.lineCap   = 'round';
  
          for (var i=0; i<=numTicks; ++i) {
              this.context.beginPath();
                  this.context.strokeStyle = this.Get('chart.tickmarks.big.color');
                  var a = (((this.endAngle - this.startAngle) / numTicks) * i) + this.startAngle;
                  this.context.arc(this.centerx, this.centery, this.radius - this.Get('chart.border.width') - 10, a, a + 0.00001, 0);
                  this.context.arc(this.centerx, this.centery, this.radius - this.Get('chart.border.width') - 10 - 10, a, a + 0.00001, 0);
              this.context.stroke();
          }
      }
  
  
      /**
      * This function draws the centerpin
      */
      RGraph.Gauge.prototype.DrawCenterpin = function ()
      {
          var offset = 6;
  
          var grad = this.context.createRadialGradient(this.centerx + offset, this.centery - offset, 0, this.centerx + offset, this.centery - offset, 25);
          grad.addColorStop(0, '#ddf');
          grad.addColorStop(1, this.Get('chart.centerpin.color'));
  
          this.context.beginPath();
              this.context.fillStyle = grad;
              this.context.arc(this.centerx, this.centery, this.centerpinRadius, 0, TWOPI, 0);
          this.context.fill();
      }
  
  
      /**
      * This function draws the labels
      */
      RGraph.Gauge.prototype.DrawLabels = function ()
      {
          this.context.fillStyle = this.Get('chart.text.color');
          var font = this.Get('chart.text.font');
          var size = this.Get('chart.text.size');
          var num  = this.Get('chart.labels.count');
  
          this.context.beginPath();
              for (var i=0; i<=num; ++i) {
                  var hyp = (this.radius - 25 - this.Get('chart.border.width')) - this.properties['chart.labels.offset'];
                  var a   = (this.endAngle - this.startAngle) / num
                      a   = this.startAngle + (i * a);
                      a  -= HALFPI;
  
                  var x = this.centerx - (Math.sin(a) * hyp);
                  var y = this.centery + (Math.cos(a) * hyp);
  
                  var hAlign = x > this.centerx ? 'right' : 'left';
                  var vAlign = y > this.centery ? 'bottom' : 'top';
                  
                  // This handles the label alignment when the label is on a PI/HALFPI boundary
                  if (a == HALFPI) {
                      vAlign = 'center';
                  } else if (a == PI) {
                      hAlign = 'center';
                  } else if (a == (HALFPI + PI) ) {
                      vAlign = 'center';
                  }
                  
                  /**
                  * Can now force center alignment
                  */
                  if (this.properties['chart.labels.centered']) {
                      hAlign = 'center';
                      vAlign = 'center';
                  }
  
                  RGraph.Text(this.context,
                              font,
                              size,
                              x,
                              y,
                              RGraph.number_format(this, (((this.max - this.min) * (i / num)) + this.min).toFixed(this.Get('chart.scale.decimals')), this.Get('chart.units.pre'), this.Get('chart.units.post')),
                              vAlign,
                              hAlign);
              }
          this.context.fill();
  
  
          /**
          * Draw the textual value if requested
          */
          if (this.Get('chart.value.text')) {
  
              var x = this.centerx;
              var y = this.centery + (this.Get('chart.value.text.y.pos') * this.radius);
              
              var units_pre  = typeof(this.Get('chart.value.text.units.pre')) == 'string' ? this.Get('chart.value.text.units.pre') : this.Get('chart.units.pre');
              var units_post = typeof(this.Get('chart.value.text.units.post')) == 'string' ? this.Get('chart.value.text.units.post') : this.Get('chart.units.post');
          
              this.context.beginPath();
                  RGraph.Text(this.context,
                              font,
                              size + 2,
                              x,
                              y,
                              RGraph.number_format(this, this.value.toFixed(this.Get('chart.scale.decimals')), units_pre, units_post),
                              'center',
                              'center',
                              true,
                              null,
                              'white');
              this.context.fill();
          }
      }
  
  
      /**
      * This function draws the top title
      */
      RGraph.Gauge.prototype.DrawTopTitle = function ()
      {
          var x = this.centerx;
          var y = this.centery - 25;
          
          // Totally override the calculated positioning
          if (typeof(this.Get('chart.title.top.pos')) == 'number') {
              y = this.centery - (this.radius * this.Get('chart.title.top.pos'));
          }
  
          if (this.Get('chart.title.top')) {
              this.context.fillStyle = this.Get('chart.title.top.color');
  
              this.context.beginPath();
                  RGraph.Text(this.context,
                              this.Get('chart.title.top.font'),
                              this.Get('chart.title.top.size'),
                              x,
                              y,
                              String(this.Get('chart.title.top')),
                              'bottom',
                              'center',
                              null,
                              null,
                              null,
                              this.Get('chart.title.top.bold'));
              this.context.fill();
          }
      }
  
  
      /**
      * This function draws the bottom title
      */
      RGraph.Gauge.prototype.DrawBottomTitle = function ()
      {
          var x = this.centerx;
          var y = this.centery + this.centerpinRadius + 10;
  
          // Totally override the calculated positioning
          if (typeof(this.Get('chart.title.bottom.pos')) == 'number') {
              y = this.centery + (this.radius * this.Get('chart.title.bottom.pos'));
          }
  
          if (this.Get('chart.title.bottom')) {
              this.context.fillStyle = this.Get('chart.title.bottom.color');
  
              this.context.beginPath();
                  RGraph.Text(this.context,
                              this.Get('chart.title.bottom.font'),
                              this.Get('chart.title.bottom.size'),
                              x,
                              y,
                              String(this.Get('chart.title.bottom')),
                              'top',
                              'center',
                              null,
                              null,
                              null,
                              this.Get('chart.title.bottom.bold'));
              this.context.fill();
          }
      }
  
  
      /**
      * This function draws the Needle
      * 
      * @param number value The value to draw the needle for
      */
      RGraph.Gauge.prototype.DrawNeedle = function (value, color, index)
      {
          var type = this.Get('chart.needle.type');
  
          this.context.lineWidth   = 0.5;
          this.context.strokeStyle = 'gray';
          this.context.fillStyle   = color;
  
          var angle = (this.endAngle - this.startAngle) * ((value - this.min) / (this.max - this.min));
              angle += this.startAngle;
  
  
          // Work out the size of the needle
          if (   typeof(this.Get('chart.needle.size')) == 'object'
              && this.Get('chart.needle.size')
              && typeof(this.Get('chart.needle.size')[index]) == 'number') {
  
              var size = this.Get('chart.needle.size')[index];
  
          } else if (typeof(this.Get('chart.needle.size')) == 'number') {
              var size = this.Get('chart.needle.size');
  
          } else {
              var size = this.radius - 25 - this.Get('chart.border.width');
          }
  
          
  
          if (type == 'line') {
  
              this.context.beginPath();
              
                  this.context.lineWidth = 7;
                  this.context.strokeStyle = color;
                  
                  this.context.arc(this.centerx,
                                   this.centery,
                                   size,
                                   angle,
                                   angle + 0.0001,
                                   false);
                  
                  this.context.lineTo(this.centerx, this.centery);
                  
                  if (this.Get('chart.needle.tail')) {
                      this.context.arc(this.centerx, this.centery, this.radius * 0.2  , angle + PI, angle + 0.00001 + PI, false);
                  }
                  
                  this.context.lineTo(this.centerx, this.centery);
      
              this.context.stroke();
              //this.context.fill();
  
          } else {
      
              this.context.beginPath();
                  this.context.arc(this.centerx, this.centery, size, angle, angle + 0.00001, false);
                  this.context.arc(this.centerx, this.centery, this.centerpinRadius * 0.5, angle + HALFPI, angle + 0.00001 + HALFPI, false);
                  
                  if (this.Get('chart.needle.tail')) {
                      this.context.arc(this.centerx, this.centery, this.radius * 0.2  , angle + PI, angle + 0.00001 + PI, false);
                  }
      
                  this.context.arc(this.centerx, this.centery, this.centerpinRadius * 0.5, angle - HALFPI, angle - 0.00001 - HALFPI, false);
              this.context.stroke();
              this.context.fill();
              
              /**
              * Store the angle in an object variable
              */
              this.angle = angle;
          }
      }
  
  
      /**
      * This draws the green background to the tickmarks
      */
      RGraph.Gauge.prototype.DrawColorBands = function ()
      {
          if (RGraph.is_array(this.Get('chart.colors.ranges'))) {
  
              var ranges = this.Get('chart.colors.ranges');
  
              for (var i=0; i<ranges.length; ++i) {
  
                  //this.context.strokeStyle = this.Get('chart.strokestyle') ? this.Get('chart.strokestyle') : ranges[i][2];
                  this.context.fillStyle = ranges[i][2];
                  this.context.lineWidth = 0;//this.Get('chart.linewidth.segments');
  
                  this.context.beginPath();
                      this.context.arc(this.centerx,
                                       this.centery,
                                       this.radius - 10 - this.Get('chart.border.width'),
                                       (((ranges[i][0] - this.min) / (this.max - this.min)) * (this.endAngle - this.startAngle)) + this.startAngle,
                                       (((ranges[i][1] - this.min) / (this.max - this.min)) * (this.endAngle - this.startAngle)) + this.startAngle,
                                       false);
  
                      this.context.arc(this.centerx,
                                       this.centery,
                                       this.radius - 20 - this.Get('chart.border.width'),
                                       (((ranges[i][1] - this.min) / (this.max - this.min)) * (this.endAngle - this.startAngle)) + this.startAngle,
                                       (((ranges[i][0] - this.min) / (this.max - this.min)) * (this.endAngle - this.startAngle)) + this.startAngle,
                                       true);
                  this.context.closePath();
                  this.context.fill();
              }
  
              return;
          }
  
  
  
  
          /**
          * Draw the GREEN region
          */
          this.context.strokeStyle = this.Get('chart.green.color');
          this.context.fillStyle = this.Get('chart.green.color');
          
          var greenStart = this.startAngle;
          var greenEnd   = this.startAngle + (this.endAngle - this.startAngle) * ((this.Get('chart.green.end') - this.min) / (this.max - this.min))
  
          this.context.beginPath();
              this.context.arc(this.centerx, this.centery, this.radius - 10 - this.Get('chart.border.width'), greenStart, greenEnd, false);
              this.context.arc(this.centerx, this.centery, this.radius - 20 - this.Get('chart.border.width'), greenEnd, greenStart, true);
          this.context.fill();
  
  
          /**
          * Draw the YELLOW region
          */
          this.context.strokeStyle = this.Get('chart.yellow.color');
          this.context.fillStyle = this.Get('chart.yellow.color');
          
          var yellowStart = greenEnd;
          var yellowEnd   = this.startAngle + (this.endAngle - this.startAngle) * ((this.Get('chart.red.start') - this.min) / (this.max - this.min))
  
          this.context.beginPath();
              this.context.arc(this.centerx, this.centery, this.radius - 10 - this.Get('chart.border.width'), yellowStart, yellowEnd, false);
              this.context.arc(this.centerx, this.centery, this.radius - 20 - this.Get('chart.border.width'), yellowEnd, yellowStart, true);
          this.context.fill();
  
  
          /**
          * Draw the RED region
          */
          this.context.strokeStyle = this.Get('chart.red.color');
          this.context.fillStyle = this.Get('chart.red.color');
          
          var redStart = yellowEnd;
          var redEnd   = this.startAngle + (this.endAngle - this.startAngle) * ((this.max - this.min) / (this.max - this.min))
  
          this.context.beginPath();
              this.context.arc(this.centerx, this.centery, this.radius - 10 - this.Get('chart.border.width'), redStart, redEnd, false);
              this.context.arc(this.centerx, this.centery, this.radius - 20 - this.Get('chart.border.width'), redEnd, redStart, true);
          this.context.fill();
      }
  
  
  
      /**
      * A placeholder function
      * 
      * @param object The event object
      */
      RGraph.Gauge.prototype.getShape = function (e)
      {
      }
  
  
  
      /**
      * A getValue method
      * 
      * @param object e An event object
      */
      RGraph.Gauge.prototype.getValue = function (e)
      {
          var mouseXY = RGraph.getMouseXY(e);
          var mouseX  = mouseXY[0];
          var mouseY  = mouseXY[1];
  
          var angle = RGraph.getAngleByXY(this.centerx, this.centery, mouseX, mouseY);
  
          if (angle >= 0 && angle <= HALFPI) {
              angle += TWOPI;
          }
  
          var value = ((angle - this.startAngle) / (this.endAngle - this.startAngle)) * (this.max - this.min);
              value = value + this.min;
  
          if (value < this.min) {
              value = this.min
          }
  
          if (value > this.max) {
              value = this.max
          }
  
          return value;
      }
  
  
  
      /**
      * The getObjectByXY() worker method. Don't call this call:
      * 
      * RGraph.ObjectRegistry.getObjectByXY(e)
      * 
      * @param object e The event object
      */
      RGraph.Gauge.prototype.getObjectByXY = function (e)
      {
          var mouseXY = RGraph.getMouseXY(e);
  
          if (
                 mouseXY[0] > (this.centerx - this.radius)
              && mouseXY[0] < (this.centerx + this.radius)
              && mouseXY[1] > (this.centery - this.radius)
              && mouseXY[1] < (this.centery + this.radius)
              && RGraph.getHypLength(this.centerx, this.centery, mouseXY[0], mouseXY[1]) <= this.radius
              ) {
  
              return this;
          }
      }
  
  
  
      /**
      * This draws the gradient that goes around the Gauge chart
      */
      RGraph.Gauge.prototype.DrawGradient = function ()
      {
          if (this.Get('chart.border.gradient')) {
              var context = this.context;
              
              context.beginPath();
      
                  var grad = context.createRadialGradient(this.centerx, this.centery, this.radius, this.centerx, this.centery, this.radius - 15);
                  grad.addColorStop(0, 'gray');
                  grad.addColorStop(1, 'white');
      
                  context.fillStyle = grad;
                  context.arc(this.centerx, this.centery, this.radius, 0, TWOPI, false)
                  context.arc(this.centerx, this.centery, this.radius - 15, TWOPI,0, true)
              context.fill();
          }
      }
  
  
  
      /**
      * This method handles the adjusting calculation for when the mouse is moved
      * 
      * @param object e The event object
      */
      RGraph.Gauge.prototype.Adjusting_mousemove = function (e)
      {
          /**
          * Handle adjusting for the Bar
          */
          if (RGraph.Registry.Get('chart.adjusting') && RGraph.Registry.Get('chart.adjusting').uid == this.uid) {
              this.value = this.getValue(e);
              RGraph.Clear(this.canvas);
              RGraph.RedrawCanvas(this.canvas);
              RGraph.FireCustomEvent(this, 'onadjust');
          }
      }
  
  
  
      /**
      * This method returns an appropriate angle for the given value (in RADIANS)
      * 
      * @param number value The value to get the angle for
      */
      RGraph.Gauge.prototype.getAngle = function (value)
      {
          // Higher than max
          if (value > this.max || value < this.min) {
              return null;
          }
  
          //var value = ((angle - this.startAngle) / (this.endAngle - this.startAngle)) * (this.max - this.min);
              //value = value + this.min;
  
          var angle = (((value - this.min) / (this.max - this.min)) * (this.endAngle - this.startAngle)) + this.startAngle;
          
          return angle;
      }
  
  
  
      /**
      * This allows for easy specification of gradients. Could optimise this not to repeatedly call parseSingleColors()
      */
      RGraph.Gauge.prototype.parseColors = function ()
      {
          this.properties['chart.background.color'] = this.parseSingleColorForGradient(this.properties['chart.background.color']);
          this.properties['chart.red.color']        = this.parseSingleColorForGradient(this.properties['chart.red.color']);
          this.properties['chart.yellow.color']     = this.parseSingleColorForGradient(this.properties['chart.yellow.color']);
          this.properties['chart.green.color']      = this.parseSingleColorForGradient(this.properties['chart.green.color']);
          
          // Parse the chart.color.ranges value
          if (this.properties['chart.colors.ranges']) {
              
              var ranges = this.properties['chart.colors.ranges'];
  
              for (var i=0; i<ranges.length; ++i) {
                  ranges[i][2] = this.parseSingleColorForGradient(ranges[i][2]);
              }
          }
  
          // Parse the chart.needle.colors value
          if (this.properties['chart.needle.colors']) {
              
              var colors = this.properties['chart.needle.colors'];
  
              for (var i=0; i<colors.length; ++i) {
                  colors[i] = this.parseSingleColorForGradient(colors[i]);
              }
          }
      }
  
  
  
      /**
      * This parses a single color value
      */
      RGraph.Gauge.prototype.parseSingleColorForGradient = function (color)
      {        
          if (!color || typeof(color) != 'string') {
              return color;
          }
  
          if (color.match(/^gradient\((.*)\)$/i)) {
              
              var parts = RegExp.$1.split(':');
  
              // Create the gradient
              var grad = this.context.createRadialGradient(this.centerx,this.centery,0,this.centerx,this.centery,this.radius);
  
              var diff = 1 / (parts.length - 1);
  
              grad.addColorStop(0, RGraph.trim(parts[0]));
  
              for (var j=1; j<parts.length; ++j) {
                  grad.addColorStop(j * diff, RGraph.trim(parts[j]));
              }
          }
              
          return grad ? grad : color;
      }