Figure 4: Cumulative K-(J-K) Colour-Magnitude-Diagrams of AGB stars in a sample of LMC clusters (Frogel & Cohen 1982, ApJ, 253, 580). K and (J-K) magnitudes have been transformed from the CIT system to the Johnson one using the relationships in Bessell & Brett (1988). Reddenings are from Frogel & Cohen (1982) and we used a distance modulus (m-M)o=18.50. The individual CMDs are coadded according to the cluster SWB type. Theoretical isochrones for the appropriate age and metallicity range (taken from Gonzalez et al. 2004) of each cluster type are also displayed.