// create a distance joint between bodies bodyDef1 and bodyDef2

	       distanceJoint = new b2DistanceJointDef();
	       distanceJoint.bodyA = bodyDef1;
	       distanceJoint.bodyB = bodyDef2;
	       
	    // connect the bodies in points relative to the local body coordinate system

	       distanceJoint.localAnchorA = new b2Vec2(-0.7, 0);
	       distanceJoint.localAnchorB = new b2Vec2(0.7, 0);
	       
	    // set the frequency and damping ratio for the distance joint

	       distanceJoint.frequencyHz = 4.0;
	       distanceJoint.dampingRatio = 0.5;
	       
	    // set the length of the joint

	       distanceJoint.length = 3;
	       distanceJoint.collideConnected = true;
	      
	    // create the joint in the world

	       world.CreateJoint(distanceJoint);