added basic navigation (w, and b)

sketch.js

@@ -34,7 +34,6 @@ class Word {
   constructor(clue, word, x, y, direction) {
     this.chars = new Array();
     this.direction = direction;
-    // this.highlightColor = direction ? '#c8b9fc' : '#CFE9F5';
     this.highlightColor = direction ? '#fff5bc' : '#ffddbd';
     if (!mycell[x][y].hintNr) {
       mycell[x][y].hintNr = ++Word.number;
@@ -238,6 +237,14 @@ function logKey(e) {
         case "r":
           activeMode = mode.replace;
           break;
+        case "B":
+        case "b":
+          activeCell = activeCell.word[m_orientation].chars[0].neighbour[m_orientation?1:0].word[m_orientation].chars[0];
+          break;
+        case "W":
+        case "w":
+          activeCell = activeCell.word[m_orientation].chars[activeCell.word[m_orientation].chars.length-1].neighbour[m_orientation?3:2];
+          break;
         case "`":
           activeCell.currentChar = activeCell.actualChar;
           break;