main.js

String.prototype.contains = function(it) {
    return this.indexOf(it) != -1;
};

function suggest(word) {
    var sug = new Array();
    var lookup = dict[alpha[word[0]]]
    for (var i = 0; i < lookup.length; i++) {
        var j = lookup[i]
        if (j.contains(word)) {
            sug.push(j);
        }
    }
    return sug
}
var suggestions;
$('#input').keyup(function(e) {
	var val = $(this).val()
    if (val.length > 1) {
        suggestions = suggest(val)
        $("#suggestions").val("")
        for (var g = 0; g < suggestions.length; g++) {
            $("#suggestions").val($("#suggestions").val() + ", " + suggestions[g])
        }
    }
})