function makevisible(obj, which) {
	strength = (which == 0) ? 1 : 0.4

	obj = document.getElementById("" + obj +"");

	if(typeof obj.style.MozOpacity != "undefined") {
		obj.style.MozOpacity = strength
	} else if(typeof obj.style.opacity != "undefined") {
		obj.style.opacity = strength
	} else if(typeof obj.style.KhtmlOpacity != "undefined") {
		obj.style.KhtmlOpacity = strength
	} else if(typeof obj.style.filter != "undefined") {
		obj.filters.alpha.opacity = strength * 100
	}
}