code: function clientConnectionRequestPDU(opt, cookie) {
  	var self = {
  		len : new type.UInt8(function() { 
  			return new type.Component(self).size() - 1; 
  		}),
  		code : new type.UInt8(MessageType.X224_TPDU_CONNECTION_REQUEST, { constant : true }),
  		padding : new type.Component([new type.UInt16Le(), new type.UInt16Le(), new type.UInt8()]),
  		cookie : cookie || new type.Factory( function (s) {
  			var offset = 0;
  			while (true) {
  				var token = s.buffer.readUInt16LE(s.offset + offset);
  				if (token === 0x0a0d) {
  					self.cookie = new type.BinaryString(null, { readLength : new type.CallableValue(offset + 2) }).read(s);
  					return;
  				}
  				else {
  					offset += 1;
  				}
  			}
  		}, { conditional : function () {
  			return self.len.value > 14;
  		}}),
  		protocolNeg : negotiation({ optional : true })
  	};
  
  	return new type.Component(self, opt);
  }
docs: X224 client connection request
  @param opt {object} component type options
  @see	http://msdn.microsoft.com/en-us/library/cc240470.aspx