[RESOLVED] Function with the word "var" -- never seen before

[forsooth]

I got this from another thread on PHP_builder:

function countdown(){
var uRl = "<?php echo $url;?>";
var cRedits = "<?php echo $credits;?>";
var tItle = "<?php echo $title;?>";

--time;
if(time == 0){
    document.getElementById("countdown").innerHTML = "<a href=?confirm&url=<?php echo $url;?>&credits=<?php echo $credits;?>&title=<?php echo $title;?> name=confirm>Confirm</a>";

}else{
    document.getElementById("countdown").innerHTML = time;
    var t = setTimeout('countdown()', 1000);
}
}

The "var" is confusing me...not hard to do, of course. I've just never seen this before. Is it correct?

Thanks!

[forsooth]

Wait. I'm stupid. That's javascript, which I don't know. Sorry.