add 5 image in parallax node

i need to add 5 continous backgroundimage as parallax scrolling node. so it will look like scrolling background…

my init code :-

//initialise paralllax _backgroundNode = CCParallaxNodeExtras::node(); this->addChild(_backgroundNode, 1); //create sprites _fogA = CCSprite::create("bg1.png"); _fogB = CCSprite::create("bg2.png"); _liany = CCSprite::create("bg3.png"); _pnie = CCSprite::create("bg4.png"); _pniw = CCSprite::create("bg5.png"); //ratio CCPoint bgSpeed = ccp(0.05, 0.05); // add spriet to parallax node _backgroundNode->addChild(_fogA, 0, bgSpeed, ccp(_fogA->getContentSize().width/2,_fogA->getContentSize().height/2)); _backgroundNode->addChild(_fogB, 0, bgSpeed, ccp(_fogA->getContentSize().width, _fogB->getContentSize().height/2)); _backgroundNode->addChild(_liany, 0, bgSpeed, ccp((_fogA->getContentSize().width+_fogB->getContentSize().width), _liany->getContentSize().height/2)); _backgroundNode->addChild(_pnie, 0, bgSpeed, ccp((_fogA->getContentSize().width+_fogB->getContentSize().width+_liany->getContentSize().width), _pnie->getContentSize().height/2)); _backgroundNode->addChild(_pniw, 0, bgSpeed, ccp((_fogA->getContentSize().width+_fogB->getContentSize().width+_liany->getContentSize().width+_pnie->getContentSize().width),_pniw->getContentSize().height/2));

my update method:-

//update method void Game::processBackground(float dt) { // scroll 30 pixels backward in update CCPoint backgroundScrollVert = ccp(-3000, 0); _backgroundNode->setPosition(ccpAdd(_backgroundNode->getPosition(), ccpMult(backgroundScrollVert, dt))); //create array objects to reset the image CCArray * fogs = CCArray::createWithCapacity(5); fogs->addObject(_fogA); fogs->addObject(_fogB); fogs->addObject(_liany); fogs->addObject(_pnie); fogs->addObject(_pniw); for (int ii = 0; ii < fogs->count(); ii++) { CCSprite * fog = (CCSprite *)(fogs->objectAtIndex(ii)); float xPosition = _backgroundNode->convertToWorldSpace(fog->getPosition()).x - (fog->getContentSize().width/2); float size = fog->getContentSize().width; if (xPosition < -size) { _backgroundNode->incrementOffset(ccp(fog->getContentSize().width*2,0),fog); } } }

somewhat all the 5 images coming, but in between images some black space are there.

am not undertsand why its coming
? :;qst