The idealized version of the mode-coupling theory which focuses on the nonequilibrium structural aspects of colloidal particles in glass formation is applied to determine the liquid-glass transition boundary for a suspension of monodisperse polystyrene charged spheres as a function of electrolyte concentration. Guided by previous studies of the liquid-fcc-bcc freezing transition, we employ the same macro-ion charge as that used in the latter and predict the colloidal liquid-glass transition loci in remarkably good agreement with measurements. [S0031-9007(99)09045-6].