var start = new Date();
var startsec = start.getTime();

// run a loop counting up to 250,000
//var num = 0;
//for( var i = 0; i < 250000; i++ )
//{
//  num++;
//}

var stop  = new Date();
var stopsec = stop.getTime();

var loadtime = ( stopsec - startsec ) / 1000;