/*

*/
module.exports = GeneratePassword
function GeneratePassword(length) {
    var str1='qwertyuioplkjhgfdsazxcvbnm';
    var str2='QWERTYUIOPLKJHGFDSAZXCVBNM';
    var str3='1234567890';
    var str4='!@#$%^&*.,';
    var str = [str1,str2,str3,str4].join('')
    var res = '';
    for (var i=0; i < length; i++) {
        var j = getRandomNum(str.length);
        res = res + str.charAt(j);
    }
    return res;
}

function getRandomNum(cnt) {
    // between 0 - 1
    var rndNum = Math.random()
    rndNum = parseInt(rndNum * cnt);
    return rndNum;
}