var IE6 = navigator.userAgent.indexOf('MSIE 6.0') != -1
var Gecko = navigator.userAgent.indexOf('Gecko') != -1

var browser = '';
if (IE6){
	 browser = 'You are using Internet Explorer 6';
}else if (Gecko){
	 browser = 'You are using a Gecko based browser';
}else{
	 browser= 'You are using a browser that might not properly view these pages: ' + navigator.appName;
}

var visibleDiv = 'indexdiv';

function show(obj){
	document.getElementById(visibleDiv).style.display = 'none';
	document.getElementById(obj).style.display = 'block';
	visibleDiv = obj;
}