random

    function random(min,max){
        if(max == null || max == undefined){
            max = min;
            min = 0;
        }
        min = min || 0;
        max = max || 4000000;

        if(min >= max){
            min = max + 1;
        }

        while(true){
            var val = _random(max);
            if(min >= val)
                continue;
            return val;
        }
    }
    function _random(max){
        if(!max || max <= 0)
            max = 101;

        var num = Math.floor(Math.random()* max);

        if(num === 0)
            num = 1;

        return num;
    }