--- a/mpui.js	Wed Aug 29 20:27:00 2018 +0300
+++ b/mpui.js	Mon Sep 03 14:22:20 2018 +0300
@@ -2,8 +2,9 @@
  * Multipaint.JS - Javascript launcher
  * (C) Copyright 2018 Matti 'ccr' Hämäläinen <ccr@tnsp.org>
  */
-var mpMachine = 0, mpUIScale, mpUIForcedWidth, mpUIForcedHeight;
-var mpURL;
+var mpMachine = 0, mpUIScale,
+  mpUIForcedWidth, mpUIForcedHeight, mpURL,
+  mpUIPalette;
 
 // Machine ID, Name/desc, Alt.palette array index (-1 if none)
 var mpMachines =
@@ -146,13 +147,18 @@
 }
 
 
+function stCleanFilename(vstr)
+{
+  return vstr.replace(/[^a-z0-9_\.]/ig, "");
+}
+
+
 function mpMachineChanged()
 {
   var tmp = stGetSelIndex("machineID");
   var velem = stGE("paletteID");
   var palID = mpMachines[tmp][2];
   velem.style.display = (palID >= 0) ? "block" : "none";
-  velem.disabled = true;
   stClearChildren(velem);
   if (palID >= 0)
   {
@@ -209,7 +215,6 @@
   mdiv.appendChild(mobj);
   mobj.appendChild(stCE("select", "paletteID"));
 
-
   mdiv = stCE("div", "mdimensions");
   mpUI.appendChild(mdiv);
 
@@ -269,6 +274,9 @@
     mpUIForcedWidth = mpUIForcedHeight = 0;
 
   mpUIScale = stGetSelValue(stGE("scalesID"), -1);
+  index = stGetSelValue(stGE("paletteID"), -1);
+  if (index >= 0)
+    mpUIPalette = mpPalettes[mpMachine][index];
 
   stClearChildren(mpUI);
 
@@ -276,7 +284,9 @@
   var mpCanvas = stGE("mpCanvas");
   mpCanvas.style.display = "block";
 
-  window.location.href = mpURL +"?"+ mpMachine.toString() +":"+ mpUIForcedWidth +":"+ mpUIForcedHeight +":"+ mpUIScale;
+  window.location.href = mpURL +"?"+
+    mpMachine.toString() +":"+
+    mpUIForcedWidth +":"+ mpUIForcedHeight +":"+ mpUIScale +":"+ mpUIPalette;
 
   mpRunSketch(mpCanvas);
 }
@@ -305,6 +315,9 @@
     }
     if (sargs.length >= 4)
       mpUIScale = parseInt(sargs[3]);
+
+    if (sargs.length >= 5)
+      mpUIPalette = stCleanFilename(sargs[4]);
   }
   else
     mpURL = slink;