function which repeats an id a set amount of times and then increments

repeat.js

var repeat= function(reps){
        var repeatOrig=ko.repeat;
        repeatOrig.uid=!repeatOrig.uid?1:repeatOrig.uid+1;
        var times = reps-1;
        var repetion= function(){
            if(--times<=0)
                ko.repeat=repeatOrig;
            return repeatOrig.uid;
        };
        ko.repeat=repetion;
        return repeatOrig.uid;
    };