function microtime (get_as_float) { 
	// Returns either a string or a float containing the current time in seconds and microseconds   
	//  
	// version: 909.322 
	// discuss at: http://phpjs.org/functions/microtime 
	// +   original by: Paulo Ricardo F. Santos 
	// *     example 1: timeStamp = microtime(true); 
	// *     results 1: timeStamp > 1000000000 && timeStamp < 2000000000 
	var now = new Date().getTime() / 1000; 
	var s = parseInt(now, 10); 
	return (get_as_float) ? now : (Math.round((now - s) * 1000) / 1000) + ' ' + s; 
}