From e1e80cce232a1efbebc1e3dbe236ecf957464c68 Mon Sep 17 00:00:00 2001
From: Dan Vanderkam <danvk@google.com>
Date: Fri, 13 Dec 2013 17:09:15 -0500
Subject: [PATCH] Fix lint errors in gallery and add its JS files to lint.sh

---
 gallery/annotations.js          | 22 +++++++-------
 gallery/avoid-min-zero.js       |  8 ++---
 gallery/callbacks.js            |  4 +--
 gallery/color-cycle.js          |  2 +-
 gallery/data.js                 |  2 +-
 gallery/drawing.js              | 34 +++++++++++----------
 gallery/edge-padding.js         |  6 ++--
 gallery/gallery.js              | 48 +++++++++++++++--------------
 gallery/highlighted-series.js   |  4 +--
 gallery/highlighted-weekends.js | 67 ++++++++++++++++++++---------------------
 gallery/independent-series.js   | 20 ++++++------
 gallery/interaction-api.js      | 10 +++---
 gallery/interaction.js          | 23 ++++++++------
 gallery/linear-regression.js    | 14 ++++-----
 gallery/link-interaction.js     |  6 ++--
 gallery/number-format.js        |  6 ++--
 gallery/plotter.js              |  7 +++--
 gallery/stock.js                | 10 +++---
 gallery/synchronize.js          |  1 +
 gallery/two-axes.js             |  8 ++---
 lint.sh                         |  9 ++----
 21 files changed, 158 insertions(+), 153 deletions(-)

diff --git a/gallery/annotations.js b/gallery/annotations.js
index e0e0319..af0c542 100644
--- a/gallery/annotations.js
+++ b/gallery/annotations.js
@@ -44,15 +44,15 @@ Gallery.register(
                   var html = "";
                   for (var i = 0; i < ann.length; i++) {
                     var name = nameAnnotation(ann[i]);
-                    html += "<span id='" + name + "'>"
-                    html += name + ": " + (ann[i].shortText || '(icon)')
+                    html += "<span id='" + name + "'>";
+                    html += name + ": " + (ann[i].shortText || '(icon)');
                     html += " -> " + ann[i].text + "</span><br/>";
                   }
                   document.getElementById("list").innerHTML = html;
-            }
-          }
+                }
+              }
           );
-    
+
       var last_ann = 0;
       annotations = [];
       for (var x = 10; x < 15; x += 2) {
@@ -78,7 +78,7 @@ Gallery.register(
         }
       } );
       g.setAnnotations(annotations);
-    
+
       document.getElementById('add').onclick = function() {
         var x = last_ann + 2;
         var annnotations = g.annotations();
@@ -91,26 +91,26 @@ Gallery.register(
         } );
         last_ann = x;
         g.setAnnotations(annotations);
-      }
+      };
 
       var bottom = document.getElementById('bottom');
 
       bottom.onclick = function() {
         var to_bottom = bottom.textContent == 'Shove to bottom';
-    
+
         var anns = g.annotations();
         for (var i = 0; i < anns.length; i++) {
           anns[i].attachAtBottom = to_bottom;
         }
         g.setAnnotations(anns);
-    
+
         if (to_bottom) {
           bottom.textContent = 'Lift back up';
         } else {
           bottom.textContent = 'Shove to bottom';
         }
-      }
-    
+      };
+
       var saveBg = '';
       var num = 0;
       g.updateOptions( {
diff --git a/gallery/avoid-min-zero.js b/gallery/avoid-min-zero.js
index 9d72980..96a3cbc 100644
--- a/gallery/avoid-min-zero.js
+++ b/gallery/avoid-min-zero.js
@@ -18,7 +18,7 @@ Gallery.register(
         "2008-05-10,0\n" +
         "2008-05-11,3\n" +
         "2008-05-12,4\n"
-    )
+    );
     var g2 = new Dygraph(document.getElementById("graphd2"),
         "Date,Temperature\n" +
         "2008-05-07,0\n" +
@@ -30,7 +30,7 @@ Gallery.register(
         {
            stepPlot: true
         }
-    )
+    );
     var g3 = new Dygraph(document.getElementById("graph3"),
         "Date,Temperature\n" +
         "2008-05-07,0\n" +
@@ -42,7 +42,7 @@ Gallery.register(
         {
             avoidMinZero: true
         }
-    )
+    );
     var g4 = new Dygraph(document.getElementById("graphd4"),
         "Date,Temperature\n" +
         "2008-05-07,0\n" +
@@ -55,6 +55,6 @@ Gallery.register(
            stepPlot: true,
            avoidMinZero: true
         }
-    )
+    );
   }
 });
diff --git a/gallery/callbacks.js b/gallery/callbacks.js
index 8891b4c..dfa4a97 100644
--- a/gallery/callbacks.js
+++ b/gallery/callbacks.js
@@ -17,12 +17,12 @@ Gallery.register(
       var showLabels = document.getElementById('showLabels');
       showLabels.onclick =  function() {
         g.updateOptions({showLabelsOnHighlight: showLabels.checked});
-      }
+      };
 
       var s = document.getElementById("status");
       var clearStatus = function() {
         s.innerHTML = '';
-      }
+      };
       document.getElementById('clear').onclick = clearStatus;
 
       var g = null;
diff --git a/gallery/color-cycle.js b/gallery/color-cycle.js
index 96f125c..a625d7c 100644
--- a/gallery/color-cycle.js
+++ b/gallery/color-cycle.js
@@ -17,7 +17,7 @@ Gallery.register(
         ['#284785', '#EE1111', '#8AE234'],
         ['#444444', '#888888', '#DDDDDD'],
         null
-      ]
+      ];
       chart = new Dygraph(document.getElementById("blah"),
                           "X,a,b,c\n" +
                           "10,12345,23456,34567\n" +
diff --git a/gallery/data.js b/gallery/data.js
index 52105e4..bbccab0 100644
--- a/gallery/data.js
+++ b/gallery/data.js
@@ -2682,4 +2682,4 @@ var stockData = function() {
       "2009-08-15,9135.34;9496.28;9580.63,4232.5768877934;4399.8072592826;4438.88821965029\n" +
       "2009-09-15,9280.67;9712.28;9829.87,4297.2232125907;4497.07133894216;4551.51896800004\n" +
       "2009-10-15,9487.67;9712.73;10092.2,4388.84340147194;4492.9525342659;4668.48924723722\n";
-}
+};
diff --git a/gallery/drawing.js b/gallery/drawing.js
index b25341b..4452967 100644
--- a/gallery/drawing.js
+++ b/gallery/drawing.js
@@ -17,25 +17,25 @@ Gallery.register(
 
     run: function() {
       var zoom = document.getElementById('tool_zoom');
-      zoom.onclick = function() { change_tool(zoom) };
+      zoom.onclick = function() { change_tool(zoom); };
       var pencil = document.getElementById('tool_pencil');
-      pencil.onclick = function() { change_tool(pencil) };
+      pencil.onclick = function() { change_tool(pencil); };
       var eraser = document.getElementById('tool_eraser');
-      eraser.onclick = function() { change_tool(eraser) };
+      eraser.onclick = function() { change_tool(eraser); };
 
       var start_date = new Date("2002/12/29").getTime();
       var end_date = new Date().getTime();
       var data = [];
       for (var d = start_date; d < end_date; d += 604800 * 1000) {
         var millis = d + 2 * 3600 * 1000;
-        data.push( [ new Date(new Date(millis).strftime("%Y/%m/%d")), 50 ]);
+        data.push( [ new Date(Dygraph.dateString_(millis)), 50 ]);
       }
-  
+
       var isDrawing = false;
       var lastDrawRow = null, lastDrawValue = null;
       var tool = 'pencil';
       var valueRange = [0, 100];
-  
+
       function setPoint(event, g, context) {
         var graphPos = Dygraph.findPos(g.graphDiv);
         var canvasx = Dygraph.pageX(event) - graphPos.x;
@@ -54,7 +54,7 @@ Gallery.register(
             closest_row = row;
           }
         }
-  
+
         if (closest_row != -1) {
           if (lastDrawRow === null) {
             lastDrawRow = closest_row;
@@ -69,7 +69,9 @@ Gallery.register(
               var val = lastDrawValue + coeff * (row - lastDrawRow);
               val = Math.max(valueRange[0], Math.min(val, valueRange[1]));
               data[row][1] = val;
-              if (val == null || isNaN(val)) console.log(val);
+              if (val === null || value === undefined || isNaN(val)) {
+                console.log(val);
+              }
             } else if (tool == 'eraser') {
               data[row][1] = null;
             }
@@ -80,13 +82,13 @@ Gallery.register(
           g.setSelection(closest_row);  // prevents the dot from being finnicky.
         }
       }
-  
+
       function finishDraw() {
         isDrawing = false;
         lastDrawRow = null;
         lastDrawValue = null;
       }
-  
+
       var change_tool = function(tool_div) {
         var ids = ['tool_zoom', 'tool_pencil', 'tool_eraser'];
         for (var i = 0; i < ids.length; i++) {
@@ -98,7 +100,7 @@ Gallery.register(
           }
         }
         tool = tool_div.id.replace('tool_', '');
-  
+
         var dg_div = document.getElementById("draw_div");
         if (tool == 'pencil') {
           dg_div.style.cursor = 'url(images/cursor-pencil.png) 2 30, auto';
@@ -107,9 +109,9 @@ Gallery.register(
         } else if (tool == 'zoom') {
           dg_div.style.cursor = 'crosshair';
         }
-      }
+      };
       change_tool(document.getElementById("tool_pencil"));
-  
+
       g = new Dygraph(document.getElementById("draw_div"), data,
           {
             valueRange: valueRange,
@@ -160,13 +162,13 @@ Gallery.register(
                 var xOffset = g.toDomCoords(axis[0], null)[0];
                 var x = event.offsetX - xOffset;
                 var w = g.toDomCoords(axis[1], null)[0] - xOffset;
-                var xPct = w == 0 ? 0 : (x / w);
-  
+                var xPct = w === 0 ? 0 : (x / w);
+
                 var delta = axis[1] - axis[0];
                 var increment = delta * percentage;
                 var foo = [increment * xPct, increment * (1 - xPct)];
                 var dateWindow = [ axis[0] + foo[0], axis[1] - foo[1] ];
-  
+
                 g.updateOptions({
                   dateWindow: dateWindow
                 });
diff --git a/gallery/edge-padding.js b/gallery/edge-padding.js
index deaa2fa..160f4bf 100644
--- a/gallery/edge-padding.js
+++ b/gallery/edge-padding.js
@@ -61,13 +61,15 @@ Gallery.register(
           avoidMinZero: false,
           xRangePad: 3,
           yRangePad: 10,
-          drawAxesAtZero: true})};
+          drawAxesAtZero: true});
+      };
       mode[1].onchange = function() {
         updateGraphOpts({
           avoidMinZero: true,
           xRangePad: 0,
           yRangePad: null,
-          drawAxesAtZero: false})};
+          drawAxesAtZero: false});
+      };
       mode[0].checked = true;
       mode[0].onchange();
 
diff --git a/gallery/gallery.js b/gallery/gallery.js
index f4b6e70..002f7ca 100644
--- a/gallery/gallery.js
+++ b/gallery/gallery.js
@@ -1,3 +1,4 @@
+/*jshint loopfunc:true */
 var Gallery = {};
 
 Gallery.entries = {};
@@ -42,9 +43,9 @@ Gallery.start = function() {
 
     innerDiv.textContent = demo.name;
     div.onclick = function(demo, id) { return function() {
-      if (Gallery.runningDemo != null) {
+      if (Gallery.runningDemo !== null) {
         Gallery.runningDemo.innerDiv.className = "";
-        if (Gallery.runningDemo.clean != null) {
+        if (Gallery.runningDemo.clean) {
           Gallery.runningDemo.clean(Gallery.workareaChild);
         }
       }
@@ -73,9 +74,10 @@ Gallery.start = function() {
       javascriptLink.textContent = "Javascript";
 
       var css = getCss(id);
+      var cssLink;
       if (css) {
         Gallery.create("span", codeSpan).textContent = " | ";
-        var cssLink = Gallery.create("a", codeSpan);
+        cssLink = Gallery.create("a", codeSpan);
         cssLink.textContent = "CSS";
       }
 
@@ -93,37 +95,37 @@ Gallery.start = function() {
       var html = Gallery.workareaChild.innerHTML;
 
       // tweak for use in jsfiddle
-      javascript = " $(document).ready(" + javascript + "\n);"
+      javascript = " $(document).ready(" + javascript + "\n);";
       jQuery('<textarea/>', { name: 'html' })
-      .val(html)
-      .hide()
-      .appendTo(jsfs);
+        .val(html)
+        .hide()
+        .appendTo(jsfs);
 
       jQuery('<textarea/>', { name: 'js' })
-      .val(javascript)
-      .hide()
-      .appendTo(jsfs);
+        .val(javascript)
+        .hide()
+        .appendTo(jsfs);
 
       if (css) {
         jQuery('<textarea/>', { name: 'css' })
-        .val(css)
-        .hide()
-        .appendTo(jsfs);
-      }      
+          .val(css)
+          .hide()
+          .appendTo(jsfs);
+      }
       jQuery('<input/>', {
         type: 'text',
         name: 'title',
         value: 'title tbd'
       })
-      .hide()
-      .appendTo(jsfs);
+        .hide()
+        .appendTo(jsfs);
       jQuery('<input/>', {
         type: 'text',
         name: 'description',
         value: 'desc tbd'
       })
-      .hide()
-      .appendTo(jsfs);
+        .hide()
+        .appendTo(jsfs);
 
       htmlLink.onclick = function() {
         Gallery.textarea.show("HTML", html);
@@ -146,7 +148,7 @@ Gallery.start = function() {
 
   Gallery.hashChange();
 
-  window.onhashchange = Gallery.setHash;("hashchange", Gallery.hashChange, false);
+  window.onhashchange = Gallery.setHash;
 };
 
 var getCss = function(id) {
@@ -161,7 +163,7 @@ var getCss = function(id) {
             var rule = rules[j];
             var cssText = rule.cssText;
             var key = "#workarea #" + id + " ";
-            if (cssText.indexOf(key) == 0) {
+            if (cssText.indexOf(key) === 0) {
               arry.push(cssText.substr(key.length));
             }
           }
@@ -173,7 +175,7 @@ var getCss = function(id) {
     }
   }
   return "not found";
-}
+};
 
 Gallery.register = function(id, demo) {
   if (Gallery.entries[id]) {
@@ -185,12 +187,12 @@ Gallery.register = function(id, demo) {
 
 Gallery.hashChange = function(event) {
   if (location.hash) {
-    if (location.hash.indexOf("#g/") == 0) {
+    if (location.hash.indexOf("#g/") === 0) {
       var id = location.hash.substring(3) + "-toc";
       var elem = document.getElementById(id);
       elem.onclick();
       return;
     }
   }
-  Gallery.workareaChild.innerHTML = "<h3>Select a demo from the gallery on the left</h3>"
+  Gallery.workareaChild.innerHTML = "<h3>Select a demo from the gallery on the left</h3>";
 };
diff --git a/gallery/highlighted-series.js b/gallery/highlighted-series.js
index 2fdd1cf..b5ac642 100644
--- a/gallery/highlighted-series.js
+++ b/gallery/highlighted-series.js
@@ -57,8 +57,8 @@ var makeGraph = function(className, numSeries, numRows, isStacked) {
         highlightSeriesOpts: {
           strokeWidth: 3,
           strokeBorderWidth: 1,
-          highlightCircleSize: 5,
-        },
+          highlightCircleSize: 5
+        }
       });
   var onclick = function(ev) {
     if (g.isSeriesLocked()) {
diff --git a/gallery/highlighted-weekends.js b/gallery/highlighted-weekends.js
index 287aee5..09e11a1 100644
--- a/gallery/highlighted-weekends.js
+++ b/gallery/highlighted-weekends.js
@@ -10,38 +10,37 @@ Gallery.register(
     },
     run: function() {
       // Some sample data
-      var data = "2011-01-01," + Math.random()*100 + "\n"
-        + "2011-01-02," + Math.random()*100 + "\n"
-        + "2011-01-03," + Math.random()*100 + "\n"
-        + "2011-01-04," + Math.random()*100 + "\n"
-        + "2011-01-05," + Math.random()*100 + "\n"
-        + "2011-01-06," + Math.random()*100 + "\n"
-        + "2011-01-07," + Math.random()*100 + "\n"
-        + "2011-01-08," + Math.random()*100 + "\n"
-        + "2011-01-09," + Math.random()*100 + "\n"
-        + "2011-01-10," + Math.random()*100 + "\n"
-        + "2011-01-11," + Math.random()*100 + "\n"
-        + "2011-01-12," + Math.random()*100 + "\n"
-        + "2011-01-13," + Math.random()*100 + "\n"
-        + "2011-01-14," + Math.random()*100 + "\n"
-        + "2011-01-15," + Math.random()*100 + "\n"
-        + "2011-01-16," + Math.random()*100 + "\n"
-        + "2011-01-17," + Math.random()*100 + "\n"
-        + "2011-01-18," + Math.random()*100 + "\n"
-        + "2011-01-19," + Math.random()*100 + "\n"
-        + "2011-01-20," + Math.random()*100 + "\n"
-        + "2011-01-21," + Math.random()*100 + "\n"
-        + "2011-01-22," + Math.random()*100 + "\n"
-        + "2011-01-23," + Math.random()*100 + "\n"
-        + "2011-01-24," + Math.random()*100 + "\n"
-        + "2011-01-25," + Math.random()*100 + "\n"
-        + "2011-01-26," + Math.random()*100 + "\n"
-        + "2011-01-27," + Math.random()*100 + "\n"
-        + "2011-01-28," + Math.random()*100 + "\n"
-        + "2011-01-29," + Math.random()*100 + "\n"
-        + "2011-01-30," + Math.random()*100 + "\n"
-        + "2011-01-31," + Math.random()*100 + "\n"
-        ;
+      var data = "2011-01-01," + Math.random()*100 + "\n" +
+        "2011-01-02," + Math.random()*100 + "\n" +
+        "2011-01-03," + Math.random()*100 + "\n" +
+        "2011-01-04," + Math.random()*100 + "\n" +
+        "2011-01-05," + Math.random()*100 + "\n" +
+        "2011-01-06," + Math.random()*100 + "\n" +
+        "2011-01-07," + Math.random()*100 + "\n" +
+        "2011-01-08," + Math.random()*100 + "\n" +
+        "2011-01-09," + Math.random()*100 + "\n" +
+        "2011-01-10," + Math.random()*100 + "\n" +
+        "2011-01-11," + Math.random()*100 + "\n" +
+        "2011-01-12," + Math.random()*100 + "\n" +
+        "2011-01-13," + Math.random()*100 + "\n" +
+        "2011-01-14," + Math.random()*100 + "\n" +
+        "2011-01-15," + Math.random()*100 + "\n" +
+        "2011-01-16," + Math.random()*100 + "\n" +
+        "2011-01-17," + Math.random()*100 + "\n" +
+        "2011-01-18," + Math.random()*100 + "\n" +
+        "2011-01-19," + Math.random()*100 + "\n" +
+        "2011-01-20," + Math.random()*100 + "\n" +
+        "2011-01-21," + Math.random()*100 + "\n" +
+        "2011-01-22," + Math.random()*100 + "\n" +
+        "2011-01-23," + Math.random()*100 + "\n" +
+        "2011-01-24," + Math.random()*100 + "\n" +
+        "2011-01-25," + Math.random()*100 + "\n" +
+        "2011-01-26," + Math.random()*100 + "\n" +
+        "2011-01-27," + Math.random()*100 + "\n" +
+        "2011-01-28," + Math.random()*100 + "\n" +
+        "2011-01-29," + Math.random()*100 + "\n" +
+        "2011-01-30," + Math.random()*100 + "\n" +
+        "2011-01-31," + Math.random()*100 + "\n";
 
       var g = new Dygraph(
         document.getElementById("div_g"),
@@ -69,7 +68,7 @@ Gallery.register(
 
             var w = min_data_x;
             // starting on Sunday is a special case
-            if (dow == 0) {
+            if (dow === 0) {
               highlight_period(w,w+12*3600*1000);
             }
             // find first saturday
@@ -79,7 +78,7 @@ Gallery.register(
               dow = d.getUTCDay();
             }
             // shift back 1/2 day to center highlight around the point for the day
-            w -= 12*3600*1000;	
+            w -= 12*3600*1000;
             while (w < max_data_x) {
               var start_x_highlight = w;
               var end_x_highlight = w + 2*24*3600*1000;
diff --git a/gallery/independent-series.js b/gallery/independent-series.js
index cc41153..fab7d1d 100644
--- a/gallery/independent-series.js
+++ b/gallery/independent-series.js
@@ -144,16 +144,16 @@ Gallery.register(
 
     g2 = new Dygraph(
       document.getElementById('graph2'),
-'x,A,B  \n' +
-'1,,3   \n' +
-'2,2,   \n' +
-'3,,5   \n' +
-'4,4,   \n' +
-'5,,7   \n' +
-'6,NaN, \n' +
-'8,8,   \n' +
-'10,10, \n'
-      , {
+      'x,A,B  \n' +
+      '1,,3   \n' +
+      '2,2,   \n' +
+      '3,,5   \n' +
+      '4,4,   \n' +
+      '5,,7   \n' +
+      '6,NaN, \n' +
+      '8,8,   \n' +
+      '10,10, \n',
+      {
         labels: ['x', 'A', 'B' ],
         connectSeparatedPoints: true,
         drawPoints: true
diff --git a/gallery/interaction-api.js b/gallery/interaction-api.js
index 4b85211..603dece 100644
--- a/gallery/interaction-api.js
+++ b/gallery/interaction-api.js
@@ -50,9 +50,9 @@ function offsetToPercentage(g, offsetX, offsetY) {
   var h = g.toDomCoords(null, yar0[0])[1] - yOffset;
 
   // Percentage from the left.
-  var xPct = w == 0 ? 0 : (x / w);
+  var xPct = w === 0 ? 0 : (x / w);
   // Percentage from the top.
-  var yPct = h == 0 ? 0 : (y / h);
+  var yPct = h === 0 ? 0 : (y / h);
 
   // The (1-) part below changes it from "% distance down from the top"
   // to "% distance up from the bottom".
@@ -73,9 +73,9 @@ function dblClickV3(event, g, context) {
   var yPct = percentages[1];
 
   if (event.ctrlKey) {
-    zoom(g, -.25, xPct, yPct);
+    zoom(g, -0.25, xPct, yPct);
   } else {
-    zoom(g, +.2, xPct, yPct);
+    zoom(g, +0.2, xPct, yPct);
   }
 }
 
@@ -164,7 +164,7 @@ function moveV4(event, g, context) {
         for (var col = 1; col < 3; col++) {
           // TODO(konigsberg): these will throw exceptions as data is removed.
           var vals =  g.getValue(row, col);
-          if (vals == null) { continue; }
+          if (vals === null || vals === undefined) { continue; }
           var val = vals[0];
           var y = g.toDomCoords(null, val)[1];
           var diff2 = Math.abs(canvasy - y);
diff --git a/gallery/interaction.js b/gallery/interaction.js
index fd50def..05b0c80 100644
--- a/gallery/interaction.js
+++ b/gallery/interaction.js
@@ -41,7 +41,7 @@ Gallery.register(
           "    to mark them.",
           "  </p>",
           "  <div id='div_g4' style='width:600px; height:300px;'></div>",
-          "</div>",
+          "</div>"
           ].join('\n');
 
     },
@@ -69,15 +69,18 @@ Gallery.register(
       }});
       document.getElementById("restore3").onclick = function() {
         restorePositioning(g3);
-      }
+      };
       var g4 = new Dygraph(document.getElementById("div_g4"),
-           NoisyData, { errorBars : true, drawPoints : true, interactionModel : {
-            'mousedown' : downV4,
-            'mousemove' : moveV4,
-            'mouseup' : upV4,
-            'dblclick' : dblClickV4,
-           },
-           underlayCallback : captureCanvas
-      });
+           NoisyData, {
+             errorBars : true,
+             drawPoints : true,
+             interactionModel : {
+               'mousedown' : downV4,
+               'mousemove' : moveV4,
+               'mouseup' : upV4,
+               'dblclick' : dblClickV4
+             },
+             underlayCallback : captureCanvas
+          });
     }
   });
diff --git a/gallery/linear-regression.js b/gallery/linear-regression.js
index 11caff2..ce5932a 100644
--- a/gallery/linear-regression.js
+++ b/gallery/linear-regression.js
@@ -17,9 +17,9 @@ Gallery.register(
         "</div>"].join("\n");
     },
     run: function() {
-      document.getElementById("ry1").onclick = function() { regression(1) };
-      document.getElementById("ry2").onclick = function() { regression(2) };
-      document.getElementById("clear").onclick = function() { clearLines() };
+      document.getElementById("ry1").onclick = function() { regression(1); };
+      document.getElementById("ry2").onclick = function() { regression(2); };
+      document.getElementById("clear").onclick = function() { clearLines(); };
 
       var data = [];
       for (var i = 0; i < 120; i++) {
@@ -42,7 +42,7 @@ Gallery.register(
           if (x < range[0] || x > range[1]) continue;
 
           var y = g.getValue(i, series);
-          if (y == null) continue;
+          if (y === null || y === undefined) continue;
           if (y.length == 2) {
             // using fractions
             y = y[0] / y[1];
@@ -88,11 +88,11 @@ Gallery.register(
           var p1 = g.toDomCoords(x1, y1);
           var p2 = g.toDomCoords(x2, y2);
 
-          var c = new RGBColorParser(g.getColors()[i - 1]);
+          var c = Dygraph.toRGB_(g.getColors()[i - 1]);
           c.r = Math.floor(255 - 0.5 * (255 - c.r));
           c.g = Math.floor(255 - 0.5 * (255 - c.g));
           c.b = Math.floor(255 - 0.5 * (255 - c.b));
-          var color = c.toHex();
+          var color = 'rgb(' + c.r + ',' + c.g + ',' + c.b + ')';
           ctx.save();
           ctx.strokeStyle = color;
           ctx.lineWidth = 1.0;
@@ -104,7 +104,7 @@ Gallery.register(
           ctx.restore();
         }
       }
-      
+
       g = new Dygraph(
               document.getElementById("demodiv"),
               data,
diff --git a/gallery/link-interaction.js b/gallery/link-interaction.js
index e1d6faa..5656e09 100644
--- a/gallery/link-interaction.js
+++ b/gallery/link-interaction.js
@@ -63,12 +63,12 @@ Gallery.register(
         var w = g.xAxisRange();
         desired_range = [ w[0], w[0] + res * 1000 ];
         animate();
-      }
+      };
 
       var reset = function() {
         desired_range = orig_range;
         animate();
-      }
+      };
 
       var pan = function(dir) {
         var w = g.xAxisRange();
@@ -76,7 +76,7 @@ Gallery.register(
         var amount = scale * 0.25 * dir;
         desired_range = [ w[0] + amount, w[1] + amount ];
         animate();
-      }
+      };
 
       document.getElementById('hour').onclick = function() { zoom(3600); };
       document.getElementById('day').onclick = function() { zoom(86400); };
diff --git a/gallery/number-format.js b/gallery/number-format.js
index 2f61cf3..0d55bee 100644
--- a/gallery/number-format.js
+++ b/gallery/number-format.js
@@ -29,7 +29,7 @@ Gallery.register(
           var text = document.createTextNode(columns[i]);
           th.appendChild(text);
           row.appendChild(th);
-        };
+        }
         return row;
       };
 
@@ -54,7 +54,7 @@ Gallery.register(
         var headers = ['Dygraph.floatFormat()', 'toPrecision()',
                        'Dygraph.floatFormat()', 'toPrecision()'];
         var numbers = [];
-        var p = parseInt(document.getElementById('p_input').value);
+        var p = parseInt(document.getElementById('p_input').value, 10);
 
         for (var i = -10; i <= 10; i++) {
           var n = Math.pow(10, i);
@@ -66,7 +66,7 @@ Gallery.register(
 
         // Check exact values of 0.
         numbers.push([Dygraph.floatFormat(0.0, p),
-                      0.0.toPrecision(p)]);
+                      (0.0).toPrecision(p)]);
 
         var elem = document.getElementById('content');
         elem.innerHTML = '';
diff --git a/gallery/plotter.js b/gallery/plotter.js
index 0ecaefa..d0d14cc 100644
--- a/gallery/plotter.js
+++ b/gallery/plotter.js
@@ -1,3 +1,4 @@
+/*jshint evil:true */
 Gallery.register(
   'plotter',
   {
@@ -42,7 +43,7 @@ Gallery.register(
         document.getElementById("x2").value = presets[id][1];
         document.getElementById("eq").value = presets[id][2];
         plot();
-      }
+      };
 
       var plotButton = document.getElementById("plot");
       var plot = function() {
@@ -50,7 +51,7 @@ Gallery.register(
         eval("fn = " + eq);
 
         var graph = document.getElementById("graph_div");
-        var width = parseInt(graph.style.width);
+        var width = parseInt(graph.style.width, 10);
         var x1 = parseFloat(document.getElementById("x1").value);
         var x2 = parseFloat(document.getElementById("x2").value);
         var xs = 1.0 * (x2 - x1) / width;
@@ -71,7 +72,7 @@ Gallery.register(
         }
 
         g = new Dygraph(graph, data);
-      }
+      };
       plotButton.onclick = plot;
       plot();
     }
diff --git a/gallery/stock.js b/gallery/stock.js
index 4c6af6d..511aef1 100644
--- a/gallery/stock.js
+++ b/gallery/stock.js
@@ -17,15 +17,15 @@ Gallery.register(
             customBars: true,
             logscale: true
           });
-  
+
       var linear = document.getElementById("linear");
       var log = document.getElementById("log");
-      linear.onclick = function() { setLog(false); }
-      log.onclick = function() { setLog(true); }
+      linear.onclick = function() { setLog(false); };
+      log.onclick = function() { setLog(true); };
       var setLog = function(val) {
         g.updateOptions({ logscale: val });
         linear.disabled = !val;
         log.disabled = val;
-      }
+      };
     }
-  });
\ No newline at end of file
+  });
diff --git a/gallery/synchronize.js b/gallery/synchronize.js
index fbf791f..e2b98bb 100644
--- a/gallery/synchronize.js
+++ b/gallery/synchronize.js
@@ -1,3 +1,4 @@
+/*jshint loopfunc:true */
 Gallery.register(
   'synchronize',
   {
diff --git a/gallery/two-axes.js b/gallery/two-axes.js
index a93beed..80dc5fd 100644
--- a/gallery/two-axes.js
+++ b/gallery/two-axes.js
@@ -3,7 +3,7 @@ Gallery.register(
   {
     name: "Multiple y-axes",
     setup: function(parent) {
-      parent.innerHTML = 
+      parent.innerHTML =
           "<p>The same data with both one and two y-axes. Two y-axes:</p>" +
           "<div id='demodiv' style='width: 640; height: 350; border: 1px solid black'></div>" +
           "<p>A single y-axis:</p>" +
@@ -11,10 +11,10 @@ Gallery.register(
           "<input type='checkbox' id='check'><label for='check'> Fill?</label>";
     },
     run: function() {
-      document.getElementById('check') = function(el) {
+      document.getElementById('check').onchange = function(el) {
         g.updateOptions( { fillGraph: el.checked } );
         g2.updateOptions( { fillGraph: el.checked } );
-      }
+      };
 
       var data = [];
       for (var i = 1; i <= 100; i++) {
@@ -62,7 +62,7 @@ Gallery.register(
             labels: [ 'Date', 'Y1', 'Y2', 'Y3', 'Y4' ],
             labelsKMB: true,
             ylabel: 'Primary y-axis',
-            y2label: 'Secondary y-axis',
+            y2label: 'Secondary y-axis'
           }
       );
     }
diff --git a/lint.sh b/lint.sh
index eb61924..cd0db4c 100755
--- a/lint.sh
+++ b/lint.sh
@@ -13,17 +13,12 @@
 jsc_opts='maxerr:10000,devel:true,browser:true,shadow:true'
 rhino_opts='maxerr=10000,devel=true,browser=true,shadow=true'
 
-if [ $# -gt 1 ]; then
-  echo "Usage: $0 [file.js]"
-  exit 1
-fi
-
 RETURN_VALUE=0
 
 if [ $# -eq 0 ]; then
-  files=$(ls dygraph*.js plugins/*.js datahandler/*.js | grep -v combined | grep -v dev.js| grep -v externs)
+  files=$(ls dygraph*.js plugins/*.js datahandler/*.js gallery/*.js | grep -v combined | grep -v dev.js| grep -v externs)
 else
-  files=$1
+  files=$@
 fi
 
 if [ -e /System/Library/Frameworks/JavaScriptCore.framework/Versions/A/Resources/jsc ]; then
-- 
2.7.4