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pubic function RLEEncoder(data)
{
        var str = "";
        for(var i = 0; i < data.length; i+=2)
        {
                var rleValue = data[i];
                var rleSequenceLength = data[i+1];

                if(rleValue < 3) // Sequences are captured for blanks, walls or grains
                        var asciiCode = 36 + (rleValue * 30) + (rleSequenceLength - 1);
                else // remaining cell types (3 and 4) are treated as one-offs
                        var asciiCode = 33 + (rleValue - 3);

                // Special case for eliminated semi-colons
                if(asciiCode == 59)
                        asciiCode = 35;

                str += String.fromCharCode(asciiCode);
        }
        return str;
}