Using COLLADA DOM to get the next tag with the same name

Im using COLLADA DOM to access the data in a开发者_Go百科 .dae file and there are multiple tags called float_array... i can access the first using getDecendant("float_array") but how would i access the next for the normals and textures??

dae.getDatabase()->idLookup("Cube-Geometry-Position-array", root->getDocument()); Found the idLookup method so instead of searching for an element name, search for its ID as all ID's are individual