//Definition of arrays of header values
var header1Array = [ 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.500walk_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.abovecards_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.accordion_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.bandpray_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.ccpray_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.djjr_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.mcamp_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.pansong_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.seniors_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.snshake_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.tgate_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header1/ban.woodlawn_web.jpg' ];

var header2Array = [ 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.3smile_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.500ride_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.50close_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.abovetalk_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.bonfire_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.football_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.jeffsing_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.lifted_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.ostrom_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.picfun_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.south_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.staff_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header2/ban.vball_web.jpg' ];

var header3Array = [ 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.50smile_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.50wide_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.bikeprac_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.ccUK_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.ccwalk_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.everything_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.feet_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.haus_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.hugs_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.picnicgrp_web.jpg',
					 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header3/ban.shadows_web.jpg' ];

var header4Array1 = [ 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.50pray_web.jpg',
					  'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.50run_web.jpg',
					  'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.cold_web.jpg' ];

var header4Array2 = [ 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.drum_web.jpg',
					  'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.fallon_web.jpg',
					  'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.girlsing_web.jpg' ];

var header4Array3 = [ 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.heiditalk_web.jpg',
					  'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.joelbarker_web.jpg',
					  'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.kayak_web.jpg' ];

var header4Array4 = [ 'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.meadows_web.jpg',
					  'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.teddypray_web.jpg',
					  'http://www.indiana.edu/~iuccc/images/img-nav/headers/header4/ban.tonyh_web.jpg' ];


// Example:
//randomImage([['image1.jpg', width, height], ['image2.jpg', width, height], ...]);
function randomImage(imgArr, width, height)
{
	var index = Math.floor(Math.random() * imgArr.length);
	var source = imgArr[index];
	
	document.write("<img src=" + source + " width=" + width + " height=" + height + " style=\"display:inline;\" />");
}

/**
	The following four functions each write a random image tag from a set of 3 possible images
*/
function randomNav1()
{
	randomImage(header4Array1, 80, 100);
}

function randomNav2()
{
	randomImage(header4Array2, 80, 100);
}

function randomNav3()
{
	randomImage(header4Array3, 80, 100);
}

function randomNav4()
{
	randomImage(header4Array4, 80, 100);
}

/**
	The following three functions display banner images
*/
function randomBanner1()
{
	randomImage(header2Array, 258, 100);
}

function randomBanner2()
{
	randomImage(header1Array, 188, 100);
}

function randomBanner3()
{
	randomImage(header3Array, 368, 100);
}


function MM_swapImgRestore() 
{
	//v3.0
	var i, x, a = document.MM_sr;
	
	for(i = 0; a && i < a.length && (x = a[i]) && x.oSrc; i++)
	{
		x.src = x.oSrc;
	}
}

function MM_preloadImages() 
{
	//v3.0
	var d = document;
	
	if(d.images)
	{
		if(!d.MM_p)
		{
			d.MM_p = new Array();
		}

		var i, j = d.MM_p.length, a = MM_preloadImages.arguments;
		for(i = 0; i < a.length; i++)
		{
			if (a[i].indexOf("#") != 0)
			{
				d.MM_p[j] = new Image;
				d.MM_p[j++].src = a[i];
			}
		}
	}
}

function MM_findObj(n, d)
{
	//v4.01
	var p, i, x;
	
	if(!d)
	{
		d = document; 
	}
	
	if((p = n.indexOf("?")) > 0 && parent.frames.length) 
	{
		d = parent.frames[n.substring(p + 1)].document;
		n = n.substring(0,p);
	}
	
	if(!(x = d[n]) && d.all)
	{
		x = d.all[n];
	}
	
	for(i = 0; !x && i < d.forms.length; i++)
	{
		x = d.forms[i][n];
	}
	
	for(i = 0; !x && d.layers && i < d.layers.length; i++)
	{
		x = MM_findObj(n,d.layers[i].document);
	}
	
	if(!x && d.getElementById)
	{
		x = d.getElementById(n);
	}
	
	return x;
}

function MM_swapImage()
{
	//v3.0
	var i, j = 0, x, a = MM_swapImage.arguments;
	document.MM_sr = new Array;
	
	for(i = 0; i < (a.length-2); i += 3)
	{
		if((x = MM_findObj(a[i])) != null)
		{
			document.MM_sr[j++] = x;
			if(!x.oSrc)
			{
				x.oSrc = x.src;
			}
			
			x.src = a[i+2];
		}
	}
}

//-->
<!-- Begin Pop Up Window for retreat map - to use enter <a href="javascript:popUp('webpage.htm')">
function popUp(URL)
{
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=1,resizable=1,width=600,height=800');");
}