//sniffer
var isNav = false
var isIE = false
var isNS6 = false
if (parseInt(navigator.appVersion) >= 4) {
	if (navigator.appName == "Netscape") {
		isNav = true
	}
	else {
		isIE = true
	}
}

isNS6 = (navigator.appName == "Netscape" && parseFloat(navigator.appVersion) >= 5);


// refresh
function refreshIt() {
	if (isNav) {
		location.reload()
	}
}


// show function
function showList(object) {
	hideAll();
	if (isNav && !isNS6) {
		document.layers[object].visibility = "visible";
	}
	else if (isNS6) {
		document.getElementById(object).style.visibility = "visible";
	}
	else {
		document.all[object].style.visibility = "visible";
	}
	return;
}

function hideAll() {
	if (isNav && !isNS6) {
		for (i=0; i<=6; i++) {
			eval("document.drop" + i + ".visibility='hidden'");
		}
	}
	
	else if (isNS6) {
		for (i=0; i<=6; i++) {
			eval("document.getElementById('drop" + i + "').style.visibility='hidden'");
		}
	}
	
	else {
		for (i=0; i<=6; i++) {
			eval("document.all.drop" + i + ".style.visibility='hidden'");
		}
	}
	return;
}