//
// Browser compatibility checks
//
var agt = navigator.userAgent.toLowerCase();
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);
var version_number = is_minor;

// Will be true for Netscape and Firefox
var is_nav  = ((agt.indexOf('mozilla') != -1) && (agt.indexOf('spoofer') == -1)
					&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera') == -1)
					&& (agt.indexOf('webtv') == -1));
//var is_nav4up = (is_nav && (is_major >= 4));
var is_nav6up = (is_nav && (is_major >= 5)); // True for Firefox
var is_nav4 = (is_nav && (is_major == 4));
var is_firefox = false;
var is_nav7up = false;
var browser_name = "Unknown";
if (is_nav6up) 
{
	version_number = parseFloat(agt.substring(agt.lastIndexOf('/') + 1, agt.length));
	is_firefox = (agt.indexOf("firefox") != -1);
	if(is_firefox) {
		browser_name = "Firefox";
	} else if (agt.indexOf("netscape") != -1) {
		browser_name = "Netscape";
	} else {
		browser_name = "Mozilla";
	}
	is_nav7up = (!is_firefox && (version_number >= 7.1));
}

var is_ie = (agt.indexOf("msie") != -1);
if (is_ie)
{
	browser_name = "IE";
}

var verOffset=0;
if ((verOffset=agt.indexOf("msie")) != -1)
{
  version_number = parseFloat(agt.substring(verOffset+5,agt.length));
}

var is_ie5up = (is_ie  && (version_number >= 5.0) );

var is_win95 = ((agt.indexOf("win95") != -1) || (agt.indexOf("windows 95") != -1));
var is_win98 = ((agt.indexOf("win98") != -1) || (agt.indexOf("windows 98") != -1));
var is_winnt = ((agt.indexOf("winnt") != -1) || (agt.indexOf("windows nt") != -1));
// False on Mac system?
var is_win32 = (is_win95 || is_winnt || is_win98 ||
			(navigator.platform == "Win32") ||
							(agt.indexOf("win32") != -1) || (agt.indexOf("32bit") != -1));

var is_compatible = ((is_ie5up || is_nav6up) && is_win32);  

////////////henry added: global functions//////////////////
function getElement(theID)
{
	return document.getElementById(theID);
}