if (document.images) { fronter = new Image fronterbw = new Image groupwise = new Image groupwisebw = new Image fronter.src = 'layout/sidefronter.gif' fronterbw.src = 'layout/sidefronter-bw.gif' groupwise.src = 'layout/sidegw.gif' groupwisebw.src = 'layout/sidegw-bw.gif' }