function morseCode()
{
        var morseArr = '.-,-...,-.-.,-..,.,..-.,--.,....,..,.---,-.-,.-..,--,-.,---,.--.,--.-,.-.,...,-,..-,...-,.--,-..-,-.--,--..,-----,.----,..---,...--,....-,.....,-....,--...,---..,----.'.split(',');
    var alphaStr = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
    var str = prompt('Enter morse code or string to covert','');
    var covertFlag = confirm('Hit OK to convert FROM morse code, hit CANCEL to covert TO morse code.');
    var converted = '';
    var i = len = 0;
    if(covertFlag)          //from Morse
    {
        str = str.split(' ');
        for(i = 0, len = str.length; i < len; i++)
        {
                if(str[i] != '/')
        {
            converted += alphaStr.charAt(morseArr.indexOf(str[i]));
        }else{
                    converted += ' ';
                }
        }
    }else{                   //to Morse
        str = str.toUpperCase();
        for(i = 0, len = str.length; i < len; i++)
        {
                if(str.charAt(i) != ' ')
        {
                converted += morseArr[alphaStr.indexOf(str.charAt(i))] + ' ';
        }else{
                converted += ' / ';
            }
            }
        }

    alert(converted);
}

morseCode();