ns = (document.layers)? true:false
ie = (document.all)? true:false
<!-- Hide from old browsers
function showSubsections(id){
       // document.layers['layer1'].clip.bottom = 110;
	    if (ns) document.layers[id].visibility = "show"
	else if (ie) document.all[id].style.visibility = "visible"
}
function hideSubsections(id){
       // document.layers['layer1'].clip.bottom = 22;
	   if (ns)document.layers[id].visibility = "hide"
	else if (ie) document.all[id].style.visibility = "hidden"

}
//-->