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','unit2toc','148a-148b','148c-148d','148e-148f','148g-148h','148-149','149a','150a','150b-150c','150d-150e','150f-150g','150g1-150g2','150g3-150g4','150h-150i','150j-150k','150l-150m','150-151','152a-152b','152-153','154-155','156-157','158-159','160-161','162-163','164-165','166-167','168-169','170-171','172-173','173a-173b','173c-173d','173e-173f','173g-173h','173i-173j','173k-173l','173m-173n','173o','174a','174b-174c','174d-174e','174f-174g','174g1-174g2','174g3-174g4','174h-174i','174j-174k','174l-174m','174-175','176a-176b','176-177','178-179','180-181','182-183','184-185','186-187','188-189','190-191','192-193','194-195','196-197','197a-197b','197c-197d','197e-197f','197g-197h','197i-197j','197k-197l','197m-197n','197o','198a','198b-198c','198d-198e','198f-198g','198g1-198g2','198g3-198g4','198h-198i','198j-198k','198l-198m','198-199','200a-200b','200-201','202-203','204-205','206-207','208-209','210-211','212-213','214-215','216-217','218-219','220-221','222-223','223a-223b','223c-223d','223e-223f','223g-223h','223i-223j','223k-223l','223m-223n','223o','224a','224b-224c','224d-224e','224f-224g','224g1-224g2','224g3-224g4','224h-224i','224j-224k','224l-224m','224-225','226a-226b','226-227','228-229','230-231','232-233','234-235','236-237','238-239','240-241','242-243','244-245','246-247','248-249','249a-249b','249c-249d','249e-249f','249g-249h','249i-249j','249k-249l','249m-249n','249o','250a','250b-250c','250d-250e','250f-250g','250g1-250g2','250g3-250g4','250h-250i','250j-250k','250l-250m','250-251','252a-252b','252-253','254-255','256-257','258-259','260-261','262-263','264-265','266-267','268-269','270-271','271a-271b','271c-271d','271e-271f','271g-271h','271i-271j','271k-271l','271m-271n','271o','272a','272-273','274-275','276-277','277f-277g','277h','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|148a-148b|148c-148d|148e-148f|148g-148h|148-149|149a|150a|150b-150c|150d-150e|150f-150g|150g1-150g2|150g3-150g4|150h-150i|150j-150k|150l-150m|150-151|152a-152b|152-153|154-155|156-157|158-159|160-161|162-163|164-165|166-167|168-169|170-171|172-173|173a-173b|173c-173d|173e-173f|173g-173h|173i-173j|173k-173l|173m-173n|173o|174a|174b-174c|174d-174e|174f-174g|174g1-174g2|174g3-174g4|174h-174i|174j-174k|174l-174m|174-175|176a-176b|176-177|178-179|180-181|182-183|184-185|186-187|188-189|190-191|192-193|194-195|196-197|197a-197b|197c-197d|197e-197f|197g-197h|197i-197j|197k-197l|197m-197n|197o|198a|198b-198c|198d-198e|198f-198g|198g1-198g2|198g3-198g4|198h-198i|198j-198k|198l-198m|198-199|200a-200b|200-201|202-203|204-205|206-207|208-209|210-211|212-213|214-215|216-217|218-219|220-221|222-223|223a-223b|223c-223d|223e-223f|223g-223h|223i-223j|223k-223l|223m-223n|223o|224a|224b-224c|224d-224e|224f-224g|224g1-224g2|224g3-224g4|224h-224i|224j-224k|224l-224m|224-225|226a-226b|226-227|228-229|230-231|232-233|234-235|236-237|238-239|240-241|242-243|244-245|246-247|248-249|249a-249b|249c-249d|249e-249f|249g-249h|249i-249j|249k-249l|249m-249n|249o|250a|250b-250c|250d-250e|250f-250g|250g1-250g2|250g3-250g4|250h-250i|250j-250k|250l-250m|250-251|252a-252b|252-253|254-255|256-257|258-259|260-261|262-263|264-265|266-267|268-269|270-271|271a-271b|271c-271d|271e-271f|271g-271h|271i-271j|271k-271l|271m-271n|271o|272a|272-273|274-275|276-277|277f-277g|277h|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|';