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diff --git a/utils.js b/utils.js
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+"use strict";
+/*
+   Copyright (C) 2012 by Jeremy P. White <jwhite@codeweavers.com>
+
+   This file is part of spice-html5.
+
+   spice-html5 is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   spice-html5 is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with spice-html5.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*----------------------------------------------------------------------------
+**  Utility settings and functions for Spice
+**--------------------------------------------------------------------------*/
+var DEBUG = 0;
+var DUMP_DRAWS = false;
+var DUMP_CANVASES = false;
+
+
+/*----------------------------------------------------------------------------
+**  combine_array_buffers
+**      Combine two array buffers.
+**      FIXME - this can't be optimal.  See wire.js about eliminating the need.
+**--------------------------------------------------------------------------*/
+function combine_array_buffers(a1, a2)
+{
+    var in1 = new Uint8Array(a1);
+    var in2 = new Uint8Array(a2);
+    var ret = new ArrayBuffer(a1.byteLength + a2.byteLength);
+    var out = new Uint8Array(ret);
+    var o = 0;
+    var i;
+    for (i = 0; i < in1.length; i++)
+        out[o++] = in1[i];
+    for (i = 0; i < in2.length; i++)
+        out[o++] = in2[i];
+
+    return ret;
+}
+
+/*----------------------------------------------------------------------------
+**  hexdump_buffer
+**--------------------------------------------------------------------------*/
+function hexdump_buffer(a)
+{
+    var mg = new Uint8Array(a);
+    var hex = "";
+    var str = "";
+    var last_zeros = 0;
+    for (var i = 0; i < mg.length; i++)
+    {
+        var h = Number(mg[i]).toString(16);
+        if (h.length == 1)
+            hex += "0";
+        hex += h + " ";
+
+        str += String.fromCharCode(mg[i]);
+
+        if ((i % 16 == 15) || (i == (mg.length - 1)))
+        {
+            while (i % 16 != 15)
+            {
+                hex += "   ";
+                i++;
+            }
+
+            if (last_zeros == 0)
+                console.log(hex + " | " + str);
+
+            if (hex == "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ")
+            {
+                if (last_zeros == 1)
+                {
+                    console.log(".");
+                    last_zeros++;
+                }
+                else if (last_zeros == 0)
+                    last_zeros++;
+            }
+            else
+                last_zeros = 0;
+
+            hex = str = "";
+        }
+    }
+}
+
+
+/*----------------------------------------------------------------------------
+**  FIXME FIXME FIXME - web key code to scan code mapping
+**      This is really atrocious code.  At the end of the day, we need to
+**  map keystrokes generated by the browser into the scan codes required
+**  by spice.  This table was literally built by me pressing keys on my keyboard
+**  and typing the resulting value in by hand.
+**      I'm sure Europeans will hate me, and the Chinese will likely *never*
+**  talk to me.
+**--------------------------------------------------------------------------*/
+var scanmap = [];
+var codei = 1;
+scanmap[27]                 = codei++;
+scanmap['1'.charCodeAt(0)]  = codei++;
+scanmap['2'.charCodeAt(0)]  = codei++;
+scanmap['3'.charCodeAt(0)]  = codei++;
+scanmap['4'.charCodeAt(0)]  = codei++;
+scanmap['5'.charCodeAt(0)]  = codei++;
+scanmap['6'.charCodeAt(0)]  = codei++;
+scanmap['7'.charCodeAt(0)]  = codei++;
+scanmap['8'.charCodeAt(0)]  = codei++;
+scanmap['9'.charCodeAt(0)]  = codei++;
+scanmap['0'.charCodeAt(0)]  = codei++;
+scanmap[109]                = codei++;
+scanmap['='.charCodeAt(0)]  = codei++;
+scanmap[8]                  = codei++;
+scanmap[9]                  = codei++;
+scanmap['Q'.charCodeAt(0)]  = codei++;
+scanmap['W'.charCodeAt(0)]  = codei++;
+scanmap['E'.charCodeAt(0)]  = codei++;
+scanmap['R'.charCodeAt(0)]  = codei++;
+scanmap['T'.charCodeAt(0)]  = codei++;
+scanmap['Y'.charCodeAt(0)]  = codei++;
+scanmap['U'.charCodeAt(0)]  = codei++;
+scanmap['I'.charCodeAt(0)]  = codei++;
+scanmap['O'.charCodeAt(0)]  = codei++;
+scanmap['P'.charCodeAt(0)]  = codei++;
+scanmap[219]                = codei++;
+scanmap[221]                = codei++;
+scanmap[13]                 = codei++;
+scanmap[17]                 = codei++;
+scanmap['A'.charCodeAt(0)]  = codei++;
+scanmap['S'.charCodeAt(0)]  = codei++;
+scanmap['D'.charCodeAt(0)]  = codei++;
+scanmap['F'.charCodeAt(0)]  = codei++;
+scanmap['G'.charCodeAt(0)]  = codei++;
+scanmap['H'.charCodeAt(0)]  = codei++;
+scanmap['J'.charCodeAt(0)]  = codei++;
+scanmap['K'.charCodeAt(0)]  = codei++;
+scanmap['L'.charCodeAt(0)]  = codei++;
+scanmap[';'.charCodeAt(0)]  = codei++;
+scanmap[222]                = codei++;
+scanmap[192]                = codei++;
+scanmap[16]                 = codei++;
+scanmap[220]                = codei++;
+scanmap['Z'.charCodeAt(0)]  = codei++;
+scanmap['X'.charCodeAt(0)]  = codei++;
+scanmap['C'.charCodeAt(0)]  = codei++;
+scanmap['V'.charCodeAt(0)]  = codei++;
+scanmap['B'.charCodeAt(0)]  = codei++;
+scanmap['N'.charCodeAt(0)]  = codei++;
+scanmap['M'.charCodeAt(0)]  = codei++;
+scanmap[188]                = codei++;
+scanmap[190]                = codei++;
+scanmap[191]                = codei++;
+codei++;  // right shift seems to be same
+scanmap[106]                = codei++;
+scanmap[18]                 = codei++;
+scanmap[' '.charCodeAt(0)]  = codei++;
+scanmap[20]                 = codei++;
+scanmap[112]                = codei++;
+scanmap[113]                = codei++;
+scanmap[114]                = codei++;
+scanmap[115]                = codei++;
+scanmap[116]                = codei++;
+scanmap[117]                = codei++;
+scanmap[118]                = codei++;
+scanmap[119]                = codei++;
+scanmap[120]                = codei++;
+scanmap[121]                = codei++;
+scanmap[144]                = codei++;
+scanmap[145]                = codei++; // Scroll lock
+scanmap[103]                = codei++;
+scanmap[104]                = codei++;
+scanmap[105]                = codei++;
+codei++;// skip minus;
+scanmap[100]                = codei++;
+scanmap[101]                = codei++;
+scanmap[102]                = codei++;
+scanmap[107]                = codei++;
+scanmap[97]                 = codei++;
+scanmap[98]                 = codei++;
+scanmap[99]                 = codei++;
+scanmap[96]                 = codei++;
+scanmap[110]                = codei++;
+
+// F11 + 12 go up at 87/88, after the less
+codei = 87;
+scanmap[122]                = codei++;
+scanmap[123]                = codei++;
+
+codei = 99;
+scanmap[42]                 = codei++;
+codei++; // skip alt
+scanmap[19]                 = codei++; // break
+
+scanmap[36]                 = codei++; // home 
+scanmap[38]                 = codei++; // up
+scanmap[33]                 = codei++; // page up
+scanmap[37]                 = codei++; // left
+scanmap[39]                 = codei++; // right
+scanmap[35]                 = codei++; // end
+scanmap[40]                 = codei++; // down
+scanmap[34]                 = codei++; // page down
+scanmap[45]                 = codei++; // insert
+scanmap[46]                 = codei++; // delete
+
+function keycode_to_start_scan(code)
+{
+    if (scanmap[code] === undefined)
+    {
+        alert('no map for ' + code);
+        return 0;
+    }
+
+    if (scanmap[code] < 0x100) {
+        return scanmap[code];
+    } else {
+        return 0xe0 | ((scanmap[code] - 0x100) << 8);
+    }
+}
+
+function keycode_to_end_scan(code)
+{
+    if (scanmap[code] === undefined)
+        return 0;
+
+    if (scanmap[code] < 0x100) {
+        return scanmap[code] | 0x80;
+    } else {
+        return 0x80e0 | ((scanmap[code] - 0x100) << 8);
+    }
+}