jQuery Connections

$('div.box').connections();

$('#start').connections({
  to: '#end',
  'class': 'related'
});

Dynamic repositioning is optional. Update strategies are not constrained by the plugin. Ideas:

• Full/partial/round robin
• On interval/resize/drag event

var c = $('connection');
setInterval(function() {
  c.connections('update');
}, 500);