documentCookie = " ";
var nextNum = 0;
var selectedPath = 0;

var linearPages = new Array("w_intro.html",
					        "c_project.html",
					        "g_hypernovel.html",
					        "w_bagel1.html",
	   					    "w_bagel2.html",
					        "w_firstday.html",
					        "g_dungeon.html",
					        "w_women.html",
					        "g_tom_jones.html",
					        "c_who_al.html",
					        "w_food.html",
					        "c_kitchen.html",
					        "g_food.html",
					        "w_pantry.html",
					        "g_pantry.html",
					        "c_pantry.html",
					        "w_love.html",
						"c_rusty.html",
						    "c_excess.html",
					        "w_gun_beer.html",
					        "w_pathmark.html",
					        "g_pathmark.html",
					        "c_pathmark.html",
					        "g_zyban.html",
					        "c_zyban.html",
					        "w_zyban.html",
					        "w_as_you_like.html",
					        "g_as_you_like_it.html",
					        "c_overview.html",
					        "g_ficus.html");
					        
var gregPages = new Array("g_hypernovel.html",
						  "g_tom_jones.html",
						  "g_awake.html",
						  "g_pathmark.html",
						  "g_kitchen.html",
						  "g_dungeon.html",
						  "g_desk.html",
						  "g_zyban.html",
						  "g_food.html",
						  "g_pantry.html",
						  "g_as_you_like_it.html",
						  "g_ficus.html");

var waynePages = new Array("w_intro.html",
	   					   "w_firstday.html",
	   					   "w_bagel1.html",
	   					   "w_bagel2.html",
	   					   "w_women.html",
	   					   "w_zyban.html",
	   					   "w_pathmark.html",
	   					   "w_food.html",
	   					   "w_pantry.html",
						   "w_love.html",
	   					   "w_french_onion.html",
	   					   "w_as_you_like.html",
	   					   "w_gun_beer.html");


var chuckPages = new Array("c_project.html",
						   "c_overview.html",
						   "c_who_al.html",
						   "c_pathmark.html",
						   "c_kitchen.html",
						   "c_pantry.html",
						   "c_rusty.html",
						   "c_excess.html",
						   "c_blair.html",
						   "c_zyban.html");
						   
						   

if(getCookie("next") != null) {
	nextNum = parseInt(getCookie("next"));
} else {
	setCookie("next", 0);
}


if(getCookie("path") != null) {
	selectedPath = parseInt(getCookie("path"));
} else {
	setCookie("path", 0);
}


function getRandomPage() {
	var loc = document.location + "";
	loc = loc.substring(loc.lastIndexOf("/") + 1, loc.length);
	var who = Math.round(Math.random()*2);
	nextNum = Math.round(Math.random()*100);
	switch(who) {
		case 0:
			nextNum = nextNum % waynePages.length;
			setCookie("next", nextNum);
			if(loc == waynePages[nextNum]) {
				return getRandomPage();
			}
			return waynePages[nextNum];
		case 1:
			nextNum = nextNum % gregPages.length;
			setCookie("next", nextNum);
			if(loc == gregPages[nextNum]) {
				return getRandomPage();
			}
			return gregPages[nextNum];
		case 2:
			nextNum = nextNum % chuckPages.length;
			setCookie("next", nextNum);
			if(loc == chuckPages[nextNum]) {
				return getRandomPage();
			}
			return chuckPages[nextNum];
	}
}





function goNext() {
	selectedPath = document.path.index.selectedIndex;
	setCookie("path",selectedPath);
	nextNum = (parseInt(nextNum) + 1);
	
	switch(selectedPath) {
		case 0:
			nextNum = nextNum % linearPages.length;
			setCookie("next", nextNum);
			document.location = linearPages[nextNum];
			break;
		case 1:
			nextNum = nextNum % waynePages.length;
			setCookie("next", nextNum);
			document.location = waynePages[nextNum];
			break;
		case 2:
			nextNum = nextNum % gregPages.length;
			setCookie("next", nextNum);
			document.location = gregPages[nextNum];
			break;
		case 3:
			nextNum = nextNum % chuckPages.length;
			setCookie("next", nextNum);
			document.location = chuckPages[nextNum];
			break;
		case 4:
			document.location = getRandomPage();
			break;
	}
}



function writeForm() {
	var lsel = "";
	var wsel = "";
	var gsel = "";
	var csel = "";
	var chsel = "";
	switch(selectedPath) {
		case 0:
			lsel = " selected";
			break;
		case 1:
			wsel = " selected";
			break;
		case 2:
			gsel = " selected";
			break;
		case 3:
			csel = " selected";
			break;
		case 4:
			chsel = " selected";
			break;
	}
	document.write("<form name = \"path\">");
  	document.write("<select name=\"index\">");
	document.write("<option" + lsel + ">Linear");
	document.write("<option" + wsel + ">Wayne");
	document.write("<option" + gsel + ">Greg");
	document.write("<option" + csel + ">Chuck");
	document.write("<option" + chsel + ">Chaos");
    document.write("</select>");
	document.write("</FORM>");
}







function setCookie(name, value) {
	var expires = new Date();
	expires.setTime(expires.getTime() + (1000 * 60 * 60 * 24));
	
	document.cookie = name + "=" + escape(value) + "; path=/" + 
		((expires ==  null) ? " " : "; expires=" +
		expires.toGMTString());
	documentCookie = document.cookie;
}

function getCookie(name) {
	if (documentCookie == " ") {
		documentCookie = document.cookie;
	}  
	var dc = documentCookie;

	var cname = name + "=";
	if (dc.length > 0) {
		begin = dc.indexOf(cname);
		if(begin != -1) {
			begin += cname.length;
			end = dc.indexOf(";", begin);
			if (end == -1) 
				end = dc.length;
			return unescape(dc.substring(begin, end));		
		}	
	}
	return null;
}

function delCookie(name) {
	document.cookie = name + "=; expires=Thu, 01-Jan-70 00:00:01 GMT"  + "; path=/";
	documentCookie = document.cookie;
}