var redirect = {
	home : 'index'
};

function gotoPage() {
	var page = document.getElementById('txtgoto').value.toLowerCase();
	page = (page.split("-"))[0];
	page = page.replace(/[^0-9a-z]/gi, '');
	
	if (redirect[page])
		page = redirect[page];
	else {
		var searchStr = '\\|([^|]*-)?';
		var n_re = /[0-9]+/gi;
		var last = 0;
		while (true) {
			var n_found = n_re.exec(page);
			if (!n_found)
				break;
			searchStr += page.substring(last, n_found.index);
			if (n_found.length < 3)
				searchStr += '0*';
			searchStr += n_found;
			last = n_found.index + n_found[0].length;
		}
			
		searchStr += page.substring(last) + '(-[^|]*)?\\|';
		var re = new RegExp(searchStr, "i");
		
		var search = re.exec(availablePages);
		
		if (!search) {
			alert('Page \''+page+'\' not found.');
			return;
		}
	
		var found = search[0];
		page = found.substring(1, found.length-1);
		page = keepOnlyFirstAndLast(page);
	}
	
	page += '.html';
	
	location.href = page.toLowerCase();
}

function keepOnlyFirstAndLast(page) {
	var index = page.indexOf("-");
	if(index < 0) return page;
	
	var index2 = page.lastIndexOf("-");
	if(index2 < 0 || index2 == index) return page;
	
	page = page.substring(0,index) + page.substring(index2);
	return page;
} 
//nav tool next/back arrow
var pageList = ['i','ii','iii','vi-vii','viii-ix','xxi','unit4toc','010a-010b','010c-010d','010e-010f','010g-010h','010-011','011a','012a','012b-012c','012d-012e','012f-012g','012g1-012g2','012g3-012g4','012h-012i','012j-012k','012l-012m','012-013','014a-014b','014-015','016-017','018-019','020-021','022-023','024-025','026-027','028-029','030-031','032-033','034-035','035a-035b','035c-035d','035e-035f','035g-035h','035i-035j','035k-035l','035m-035n','035o','036a','036b-036c','036d-036e','036f-036g','036g1-036g2','036g3-036g4','036h-036i','036j-036k','036l-036m','036-037','038a-038b','038-039','040-041','042-043','044-045','046-047','048-049','050-051','052-053','054-055','056-057','058-059','059a-059b','059c-059d','059e-059f','059g-059h','059i-059j','059k-059l','059m-059n','059o','060a','060b-060c','060d-060e','060f-060g','060g1-060g2','060g3-060g4','060h-060i','060j-060k','060l-060m','060-061','062a-062b','062-063','064-065','066-067','068-069','070-071','072-073','074-075','076-077','078-079','080-081','082-083','084-085','085a-085b','085c-085d','085e-085f','085g-085h','085i-085j','085k-085l','085m-085n','085o','086a','086b-086c','086d-086e','086f-086g','086g1-086g2','086g3-086g4','086h-086i','086j-086k','086l-086m','086-087','088a-088b','088-089','090-091','092-093','094-095','096-097','098-099','100-101','102-103','104-105','106-107','108-109','110-111','111a-111b','111c-111d','111e-111f','111g-111h','111i-111j','111k-111l','111m-111n','111o','112a','112b-112c','112d-112e','112f-112g','112g1-112g2','112g3-112g4','112h-112i','112j-112k','112l-112m','112-113','114a-114b','114-115','116-117','118-119','120-121','122-123','124-125','126-127','128-129','130-131','132-133','134-135','136-137','137a-137b','137c-137d','137e-137f','137g-137h','137i-137j','137k-137l','137m-137n','137o','138a','138-139','140-141','142-143','143f-143g','143h','wa1','wa2-wa3','wa4-wa5','wa6-wa7','wa8-wa9','wa10','wa11','wa12','wa13','wa14','wa15-wa18','lr1-lr3','lr4-lr6','lr7-lr9','lr10-lr12','lr13-lr15','lr16-lr18','lr19-lr21','lr22-lr24','lr25-lr27','lr28-lr30','lr31-lr33','lr34-lr36','lr37-lr39','lr40-lr42','lr43-lr45','lr46','lr47','lr48','di1','di2','di3','di4-di5','di6-di7','di8-di9','di10','di11','di12','di13','di14-di15','di16-di17','di18-di19','di20','di21','di22','di23','di24-di25','di26-di27','di28-di29','di30','di31','di32','di33','di34-di35','di36-di37','di38-di39','di40','di41','di42','di43','di44-di45','di46-di47','di48-di49','di50','di51','di52','di53','di54','di55','di56','di57-di60','tr1','tr2','tr3','tr4','tr5','tr6','tr7','tr8','tr9','tr10-tr13','tr14-tr17','tr18','tr19','tr20','tr21','tr22','tr23','tr24','tr25','tr26','tr27','tr28','tr29','tr30','tr31','tr32','tr33','tr34','tr35','tr36','tr37','tr38','tr39','tr40'];
//Go To functionality
var availablePages = '|i|ii|iii|vi-vii|viii-ix|xxi|x|010a-010b|010c-010d|010e-010f|010g-010h|010-011|011a|012a|012b-012c|012d-012e|012f-012g|012g1-012g2|012g3-012g4|012h-012i|012j-012k|012l-012m|012-013|014a-014b|014-015|016-017|018-019|020-021|022-023|024-025|026-027|028-029|030-031|032-033|034-035|035a-035b|035c-035d|035e-035f|035g-035h|035i-035j|035k-035l|035m-035n|035o|036a|036b-036c|036d-036e|036f-036g|036g1-036g2|036g3-036g4|036h-036i|036j-036k|036l-036m|036-037|038a-038b|038-039|040-041|042-043|044-045|046-047|048-049|050-051|052-053|054-055|056-057|058-059|059a-059b|059c-059d|059e-059f|059g-059h|059i-059j|059k-059l|059m-059n|059o|060a|060b-060c|060d-060e|060f-060g|060g1-060g2|060g3-060g4|060h-060i|060j-060k|060l-060m|060-061|062a-062b|062-063|064-065|066-067|068-069|070-071|072-073|074-075|076-077|078-079|080-081|082-083|084-085|085a-085b|085c-085d|085e-085f|085g-085h|085i-085j|085k-085l|085m-085n|085o|086a|086b-086c|086d-086e|086f-086g|086g1-086g2|086g3-086g4|086h-086i|086j-086k|086l-086m|086-087|088a-088b|088-089|090-091|092-093|094-095|096-097|098-099|100-101|102-103|104-105|106-107|108-109|110-111|111a-111b|111c-111d|111e-111f|111g-111h|111i-111j|111k-111l|111m-111n|111o|112a|112b-112c|112d-112e|112f-112g|112g1-112g2|112g3-112g4|112h-112i|112j-112k|112l-112m|112-113|114a-114b|114-115|116-117|118-119|120-121|122-123|124-125|126-127|128-129|130-131|132-133|134-135|136-137|137a-137b|137c-137d|137e-137f|137g-137h|137i-137j|137k-137l|137m-137n|137o|138a|138-139|140-141|142-143|143f-143g|143h|WA1|WA2-WA3|WA4-WA5|WA6-WA7|WA8-WA9|WA10|WA11|WA12|WA13|WA14|WA15-WA16-WA17-WA18|LR1-LR2-LR3|LR4-LR5-LR6|LR7-LR8-LR9|LR10-LR11-LR12|LR13-LR14-LR15|LR16-LR17-LR18|LR19-LR20-LR21|LR22-LR23-LR24|LR25-LR26-LR27|LR28-LR29-LR30|LR31-LR32-LR33|LR34-LR35-LR36|LR37-LR38-LR39|LR40-LR41-LR42|LR43-LR44-LR45|LR46|LR47|LR48|DI1|DI2|DI3|DI4-DI5|DI6-DI7|DI8-DI9|DI10|DI11|DI12|DI13|DI14-DI15|DI16-DI17|DI18-DI19|DI20|DI21|DI22|DI23|DI24-DI25|DI26-DI27|DI28-DI29|DI30|DI31|DI32|DI33|DI34-DI35|DI36-DI37|DI38-DI39|DI40|DI41|DI42|DI43|DI44-DI45|DI46-DI47|DI48-DI49|DI50|DI51|DI52|DI53|DI54|DI55|DI56|DI57-DI58-DI59-DI60|TR1|TR2|TR3|TR4|TR5|TR6|TR7|TR8|TR9|TR10-TR11-TR12-TR13|TR14-TR15-TR16-TR17|TR18|TR19|TR20|TR21|TR22|TR23|TR24|TR25|TR26|TR27|TR28|TR29|TR30|TR31|TR32|TR33|TR34|TR35|TR36|TR37|TR38|TR39|TR40|';