Looking to make some changes or additions to this code snippet,
function countdown( elementName, minutes, seconds )
{
var element, endTime, hours, mins, msLeft, time;
function twoDigits( n )
{
return (n <= 9 ? "0" + n : n);
}
function updateTimer()
{
msLeft = endTime - (+new Date);
if ( msLeft < 1000 ) {
element.innerHTML = "Time's up!";
} else {
time = new Date( msLeft );
hours = time.getUTCHours();
mins = time.getUTCMinutes();
element.innerHTML = (hours ? hours + ':' + twoDigits( mins ) : mins) + ':' + twoDigits( time.getUTCSeconds() );
setTimeout( updateTimer, time.getUTCMilliseconds() + 500 );
}
}
element = document.getElementById( elementName );
endTime = (+new Date) + 1000 * (60*minutes + seconds) + 500;
updateTimer();
}
countdown( "countdown", 1, 5 );
When the timer is running, prevent it from restarting if the page is refreshed.
Prefer a pop-up message rather than displaying it in the HTML.
After 5 seconds of the timer ending, redirect to a different page.
Not very knowledgeable about JavaScript so apologies for the tedious questions.