Unique Random String(난수)

// 쓸만한 또다른 넘....

//

function UniqueString(){
    var mydate = new Date;
    var myday = mydate.getDate();
    var mymonth = mydate.getMonth()+1;
    var myyear = ((mydate.getYear() < 100) ? "19" : "") + mydate.getYear();
    var myyear = myyear.substring(2,4);
    var myhour = mydate.getHours();
    var myminutes = mydate.getMinutes();
    var myseconds = mydate.getSeconds();
   
    if(myday < 10) myday = "0" + myday;
    if(mymonth < 10) mymonth = "0" + mymonth;
    if(myhour < 10) myhour = "0" + myhour;
    if(myminutes < 10) myminutes = "0" + myminutes;
    if(myseconds < 10) myseconds = "0" + myseconds;
   
    var datearray = new Array(mymonth,myday,myyear,myhour,myminutes,myseconds);
    var uniq = "";
   
    for(i=0;i<datearray.length;i++){
        for(z=0;z<2;z++){
            var which = Math.round(Math.random()*1);
            if(which==0){
                x = String.fromCharCode(64 + (Math.round(Math.random()*25)+1));
            } else {
                x = String.fromCharCode(47 + (Math.round(Math.random()*9)+1));
            }
            uniq += x;
        }
        uniq += datearray[i];
    }
   
    return uniq;
}