Function to limit a string.

limit_string.js

String.prototype.limit = function(size, cutWord, suspensionPoints) {
    var str = this;

    cutWord = typeof cutWord == "undefined" ? true : cutWord;

    if (typeof size == "number" && size > 0 && str.length >= size) {
        str = str.substr(0, size);

        if (!cutWord) {
            str = str.substr(0, Math.min(str.length, str.lastIndexOf(" ")));
        }

        str += !suspensionPoints ? '...' : suspensionPoints;
    }

    return str;
};