Programatically “picking up” connections between elements in jsPlumb jQuery

source code is here

$(function() 

 
 jsPlumb.ready(function() 
 var jsp = jsPlumb.getInstance();
 jsp.draggable($("#start"));
 jsp.draggable($("#end"));
 
 var endpoint = jsp.addEndpoint($("#start"), 
 isSource:true
 );
 
 jsp.addEndpoint($("#end"), 
 isTarget:true
 ); 
 
 $("#dragbutton").bind("mousedown", function(e) 
 
 $(document).bind("mousemove.adjust", function(e) 
 
 var left = e.offsetX;
 var top = e.offsetY;
 $(endpoint.canvas).css("left":left, "top":top);
 $(document).unbind("mousemove.adjust");
 );
 
 $(endpoint.canvas).trigger(e)
 )
 
 
 )
 
 
 
)

Programatically “picking up” connections between elements in jsPlumb jQuery