Userscripts.org

from:

function t(c){
	if(c<=9){
		r1='0'+c;
	}
	else{
		r1=c;
	}
	return r1;
}

to:

function t(c){
	return (c<=9)? '0'+c : c;
}

or even better:

function t(c)
{
	return ("0" + c).substr(-2);
}