// *** BROWSER and VERSION Detection ***
var agt = navigator.userAgent.toLowerCase();
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);
// Note: On IE5, the above will return 4, so use is.ie5up to detect IE5.

// * Netscape Navigator
var is_nav  = (  (agt.indexOf('mozilla') != -1) 
			  && (agt.indexOf('spoofer') == -1)
			  && (agt.indexOf('compatible') == -1) 
			  && (agt.indexOf('webtv') == -1)
			  && (agt.indexOf('opera') == -1)
			  );
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav5 = (is_nav && (is_major == 5));
var is_nav4up = (is_nav && (is_major >= 4));
var is_nav5up = (is_nav && (is_major >= 5));
var is_navonly = ( is_nav 
				 && (  (agt.indexOf(";nav") != -1) 
					|| (agt.indexOf("; nav") != -1)
					) 
				 );

// * MS IE
var ms_pos = agt.indexOf("msie");
var ms_version = 0;
if (ms_pos > -1)
{
    ms_version = parseFloat(agt.substring(ms_pos + 4, ms_pos+9));
    var vs_version_number = parseFloat(ms_version);
}
var is_ie   = (agt.indexOf("msie") != -1);
var is_ie3  = (is_ie && (is_major < 4));
var is_ie4  = (is_ie && (is_major == 4) && (ms_version == 4) );
var is_ie5  = (is_ie && (is_major == 4) && (ms_version == 5) );
var is_ie4up = (is_ie && (ms_version >= 4));
var is_ie5up  = (is_ie && (!is_ie3) && (!is_ie4) && (ms_version >= 5));
if (!is_ie4up) 
{
	is_ie4up = is_ie5up;
}

// * AOL browser
var is_aol   = (agt.indexOf("aol") != -1);
var is_aol3  = (is_aol && is_ie3);
var is_aol4  = (is_aol && is_ie4);
var is_aol5  = (is_aol && is_ie5);
var is_aol4up  = (is_aol4 || is_aol5);

// * Opera browser
var is_opera = (agt.indexOf("opera") != -1);

// * blackberry browser
var is_blackberry = (agt.indexOf("blackberry") != -1);

// * playbook browser
var is_playbook = (agt.indexOf("playbook") != -1);

// ** Exit if not one of the supported, recognized browsers **
if ( !(is_ie4up || is_aol4up || is_nav4up || is_nav5up || is_opera || is_blackberry || is_playbook) )
{
	window.location.href = "/lenos/UnsupportedBrowser.htm";
}

// * Initialize this variables here.
var ismaster = "";
var source="";
var HotelMessage="";
var BuildbyDates = "0";


// *******************
// Netscape Resize Fix
if (is_nav4up)
{
    if (document.layers) {
            var widthCheck = window.innerWidth
            var heightCheck = window.innerHeight
            window.onresize = resizeFix
    }
    function resizeFix() {
            if (widthCheck != window.innerWidth || heightCheck !=
                window.innerHeight)
                 location.href = location.href
    }
}

// *******************
// * Are these functions USED anymore??
function isBlank(s)
{
	for (var i = 0; i < s.length; i++)
	{
		var c = s.charAt(i);
		if ((c != ' ') && (c !='\n') && (c !='\t')) return false;
	}
	return true;
}

function verify(f)
{
	var emptyFields ="";
	for (var i = 0; i < f.length; i++)
	{
		var e = f.elements[i];
		if (((e.type == "text") || (e.type == "textarea")) && (e.required))
		{
			if ((e.value == null) || (e.value =="") || isBlank(e.value))
			{
				emptyFields += "\n     " + e.display;
			}
		}
		if (e.type == "select-one" && e.required)
		{
			if (e.value == 0)
			{
				emptyFields += "\n     " + e.display;
			}
		}
	}

	if (!emptyFields) return true;

	var msg;
	msg = "This form was not submitted because the following required fields have not been filled in:\n";
	msg += emptyFields + "\n\n";
	msg += "Please fill in these fields if you wish to proceed.  Thank you.";
	alert (msg);
	return false;
}

function createLink(obj)
{
	var sAddr = "SendNumber.asp?email=" + document.forms[0].email.value + "&lEventID=" + document.forms[0].xxvbEventID.value;
	window.location.href=sAddr ;
}

// *****************************
// * Functions for setting a DIV visible or invisible
// *****************************

function setDivVisible(divname)
{
   document.getElementById(divname).style.visibility = 'visible';
}

function setDivInvisible(divname)
{
   document.getElementById(divname).style.visibility = 'hidden';
}