Fixed some confusion in NESBank and CTRLBankTools dealing with palette and side of bank.

app/js/ctrls/CTRLBankTools.js

   if (val !== LastVal){
     LastVal = val;
     if (val === "all"){
-      SURF.access_mode = 2;
+      SURF.access_mode = NESBank.ACCESSMODE_FULL;
     } else if (val === "sprites"){
-      SURF.access_mode = 1;
+      SURF.access_mode = NESBank.ACCESSMODE_SPRITE;
       GlobalEvents.emit("set_palette_mode", 1);
     } else if (val === "tiles"){
-      SURF.access_mode = 0;
+      SURF.access_mode = NESBank.ACCESSMODE_BACKGROUND;
       GlobalEvents.emit("set_palette_mode", 0);
     }
   }

app/js/models/NESBank.js

 
     var res = LRIdx2TileIdxCo((y*this.width)+x, this.__AccessMode);
     var list = (res.lid === 0) ? this.__LP : this.__RP;
-    var pi = list[res.index].paletteIndex;
+    var pi = list[res.index].paletteIndex + ((res.lid === 0) ? 4 : 0);
     var ci = list[res.index].getPixelIndex(res.x, res.y);
 
     if (this.__palette !== null){