function ContactLink ( contact ){
	    
		// The previous contact link.
	    this.prev = null;
	    // The next contact link.
	    this.next = null;
	    // The shape of the contact.
	    this.shape = null;
	    // The other rigid body.
	    this.body = null;
	    // The contact of the link.
	    this.contact = contact;

	}
A link list of contacts.
@author saharan