Fix condition in if statement for data-rotate-order

References #673

build.js

@@ -3,6 +3,9 @@ var buildify = require('buildify');
 
 buildify()
   .load('src/impress.js')
+  .perform(function(content){ 
+      return "// This file was automatically generated from files in src/ directory.\n\n" + content;
+  })
   // Libraries from src/lib
   .concat(['src/lib/gc.js'])
   .concat(['src/lib/util.js'])

js/impress.js

@@ -1,3 +1,5 @@
+// This file was automatically generated from files in src/ directory.
+
 /**
  * impress.js
  *
@@ -59,7 +61,7 @@
         var returnStr = "";
         if ( typeof order === "string" ) {
             for ( var i in order.split( "" ) ) {
-                if ( validChars.indexOf( order[ i ] >= 0 ) ) {
+                if ( validChars.indexOf( order[ i ] ) >= 0 ) {
                     returnStr += order[ i ];
 
                     // Each of x,y,z can be used only once.

src/impress.js

@@ -59,7 +59,7 @@
         var returnStr = "";
         if ( typeof order === "string" ) {
             for ( var i in order.split( "" ) ) {
-                if ( validChars.indexOf( order[ i ] >= 0 ) ) {
+                if ( validChars.indexOf( order[ i ] ) >= 0 ) {
                     returnStr += order[ i ];
 
                     // Each of x,y,z can be used only once.