Search a string array for a string and return matching strings (Read the code, it's self-explanatory)

arraySearch.js

Array.prototype.search = function(string){
    var matches = [];
    for (i=0; i<this.length; i++) {
        if (this[i].indexOf(string) != -1) {
            matches.push(this[i]);
        }
    }
    return matches;
}