Javascript for 12 hour clock

Hi! Thanks so much for the quick response. I'm not too familiar with java script so I was wondering how do i remove the seconds from the display?

I removed the sec from this line
player.SetVar("12Hour", hour+":"+minute+":"+sec+" "+am_pm);

And also i deleted this part of the code 
var sec = date.getSeconds();
if(sec<10){
sec = "0"+sec;
} 

So now the code looks like this 

var player = GetPlayer();

function date_time() {
var date = new Date();
var am_pm = "AM";
var hour = date.getHours();
if(hour>=12){
am_pm = "PM";
}
if(hour>12){
hour = hour - 12;
}
if(hour<10){
hour = "0"+hour;
}

var minute = date.getMinutes();
if (minute<10){
minute = "0"+minute;
}

player.SetVar("12Hour", hour+":"+minute+am_pm);

}

setInterval(date_time,500);

 
But the seconds appears and disappears every second (refer to attached video).
How do I solve this issue?
Thanks again, you have been such a great help! :D