$(document).ready(function() {
t1 = new Tween(document.getElementById('sq').style,'left',Tween.elasticEaseOut,0,500,4,'px');
t1.start(); 
t2 = new Tween(document.getElementById('sq2').style,'top',Tween.elasticEaseOut,0,400,4,'px');
t2.start(); 
t3 = new Tween(document.getElementById('sq3').style,'top',Tween.elasticEaseOut,400, 0,4,'px'); 
t3.start();

});