var s6_NS = (document.layers) ? 1 : 0;
var s6_IE = (document.all && document.getElementById) ? 1 : 0;
var s6_N6 = (!document.all && document.getElementById) ? 1 : 0;

function drop_on(div) {
	if(s6_IE)eval('document.all.'+div+'.style.visibility="visible"');
	if(s6_NS)eval('document.'+div+'.visibility="visible"');
	if(s6_N6) {
		s6_elm = document.getElementById(div);
		s6_elm.style.visibility = "visible";
	}
}

function do_timeout(div) {
	if(s6_IE)eval('document.all.'+div+'.style.visibility="hidden"');
	if(s6_NS)eval('document.'+div+'.visibility="hidden"');
	if(s6_N6) {
		s6_elm = document.getElementById(div);
		s6_elm.style.visibility = "hidden";
	}
}