var photoHome = new Array();
var photoInside = new Array();
var description = new Array();

// SET 1

photoHome[0] = new Array('1-1-home.jpg','1-2-home.jpg','1-3-home.jpg','1-4-home.jpg');
photoInside[0] = new Array('1-1-inside.jpg','1-2-inside.jpg','1-3-inside.jpg','1-4-inside.jpg');
description[0] = new Array('Stata Center','BCS Complex','Simmons Hall','Killian Court');

// SET 2

photoHome[1] = new Array('2-1-home.jpg','2-2-home.jpg','2-3-home.jpg','2-4-home.jpg');
photoInside[1] = new Array('2-1-inside.jpg','2-2-inside.jpg','2-3-inside.jpg','2-4-inside.jpg');
description[1] = new Array('Stata Center','BCS Complex','Zesiger Sports Center','MIT Dome');

// FUNCTIONS - DO NOT CHANGE

function setCookie(name, value, expires, path, domain, secure) {
	var curCookie = name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");
	document.cookie = curCookie;
}
  
function getCookie(name) {
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf("; " + prefix);
	if (begin == -1) { begin = dc.indexOf(prefix); if (begin != 0) return null;
	} else { begin += 2; }
	var end = document.cookie.indexOf(";", begin);
	if (end == -1) { end = dc.length; }
	return unescape(dc.substring(begin + prefix.length, end));
}

function ShowHide(id1, id2) {

	var item1 = null;
	if (document.getElementById) { item1 = document.getElementById(id1);  
	} else if (document.all) { item1 = document.all[id1];  
	} else if (document.layers) { item1 = document.layers[id1]; }
	if (!item1) { 
	} else if (item1.style) { if (item1.style.display == "none"){ item1.style.display = ""; } else {item1.style.display = "none"; } 
	} else { item1.visibility = "show"; }

}

function jumpMenu(whichForm){
  eval("parent.location='"+whichForm.options[whichForm.selectedIndex].value+"'");
}

function showSet(where,prefix){
	
	if (where == "home") {
	
	document.write('<td><div class="headerPhoto"><img src="'+prefix+'photos/'+photoHome[whichSet][0]+'" alt="Photo: '+description[whichSet][0]+'" width="180" height="125" hspace="0" vspace="0" border="0" /><div class="headerPhotoIcon" onmouseover="javascript:ShowHide(\'label1\');" onmouseout="javascript:ShowHide(\'label1\');">+</div><div class="headerPhotoLabel" id="label1" style="display:none;">'+description[whichSet][0]+'</div></div></td>');
	document.write('<td><div class="headerPhoto"><img src="'+prefix+'photos/'+photoHome[whichSet][1]+'" alt="Photo: '+description[whichSet][1]+'" width="180" height="125" hspace="0" vspace="0" border="0" /><div class="headerPhotoIcon" onmouseover="javascript:ShowHide(\'label2\');" onmouseout="javascript:ShowHide(\'label2\');">+</div><div class="headerPhotoLabel" id="label2" style="display:none;">'+description[whichSet][1]+'</div></div></td>');
	document.write('<td><div class="headerPhoto"><img src="'+prefix+'photos/'+photoHome[whichSet][2]+'" alt="Photo: '+description[whichSet][2]+'" width="180" height="125" hspace="0" vspace="0" border="0" /><div class="headerPhotoIcon" onmouseover="javascript:ShowHide(\'label3\');" onmouseout="javascript:ShowHide(\'label3\');">+</div><div class="headerPhotoLabel" id="label3" style="display:none;">'+description[whichSet][2]+'</div></div></td>');
	document.write('<td><div class="headerPhoto" id="headerPhotoLast"><img src="'+prefix+'photos/'+photoHome[whichSet][3]+'" alt="Photo: '+description[whichSet][3]+'" width="180" height="125" hspace="0" vspace="0" border="0" /><div class="headerPhotoIcon" onmouseover="javascript:ShowHide(\'label4\');" onmouseout="javascript:ShowHide(\'label4\');">+</div><div class="headerPhotoLabel" id="label4" style="display:none;">'+description[whichSet][3]+'</div></div></td>');

	} else {
		
	document.write('<td><div class="headerPhoto"><img src="'+prefix+'photos/'+photoInside[whichSet][0]+'" alt="Photo: '+description[whichSet][0]+'" width="180" height="40" border="0" /></div></td>');
	document.write('<td><div class="headerPhoto"><img src="'+prefix+'photos/'+photoInside[whichSet][1]+'" alt="Photo: '+description[whichSet][1]+'" width="180" height="40" border="0" /></div></td>');
	document.write('<td><div class="headerPhoto"><img src="'+prefix+'photos/'+photoInside[whichSet][2]+'" alt="Photo: '+description[whichSet][2]+'" width="180" height="40" border="0" /></div></td>');
	document.write('<td><div class="headerPhoto" id="headerPhotoLast"><img src="'+prefix+'photos/'+photoInside[whichSet][3]+'" alt="Photo: '+description[whichSet][3]+'" width="180" height="40" border="0" /></div></td>');
		
	}
}

// ONLOAD CODE


// FLIP-FLOP: EVERY TIME DIFFERENT SET

var now = new Date();
now.setTime(now.getTime() + 30 * 24 * 60 * 60 * 1000); // 30 DAYS - FIRST NUMBER

if (getCookie('useSet')) { 
	var whichSet = getCookie('useSet');
} else if (getCookie('lastSet')) {
	if (getCookie('lastSet') == "0") { var whichSet = "1"; } else { var whichSet = "0"; }
	setCookie("useSet",whichSet);
	setCookie("lastSet",whichSet,now);
} else {
	var whichSet = Math.round(Math.random());
	setCookie("useSet",whichSet);
	setCookie("lastSet",whichSet,now);
}


// RANDOM: ONE SET COULD REPEAT

//if (getCookie('useSet')) { var whichSet = getCookie('useSet');
//} else { var whichSet = Math.round(Math.random()); setCookie("useSet",whichSet); }