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menu.js
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function openIntroductionPage(){
var tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
}
var tab = document.getElementsByClassName("tab")[0];
var listTags = tab.getElementsByTagName("li");
for (i = 0; i < listTags.length; i++) {
listTags[i].className = listTags[i].className.replace(" active", "");
}
document.getElementById("default").style.display = "block";
}
function openPage(evt, PageName) {
localStorage.setItem("last_visited",PageName);
localStorage.setItem("last_visited_link",evt.currentTarget)
if(typeof localStorage.visit_history == 'undefined'){
localStorage.setItem("visit_history","");
}
document.getElementById("default").style.display = "none";
var i, tabcontent, listTags, tab;
tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
}
tab = document.getElementsByClassName("tab")[0];
listTags = tab.getElementsByTagName("li");
for (i = 0; i < listTags.length; i++) {
listTags[i].className = listTags[i].className.replace(" active", "");
}
document.getElementById(PageName).style.display = "block";
if(evt.currentTarget.className != " active") {
evt.currentTarget.className += " active";
}
if(evt.currentTarget.className != " visited") {
evt.currentTarget.className += " visited";
}
for (i = 0; i < listTags.length; i++) {
if(listTags[i].className.indexOf("active")>-1){
localStorage.setItem("last_visited_link",listTags[i].innerHTML);
if(localStorage.visit_history.indexOf(listTags[i].innerHTML) == -1){
localStorage.visit_history = localStorage.visit_history + listTags[i].innerHTML;
}
}
}
}
function nextPage(){
var tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
if(tabcontent[i].style.display == "block" && i<tabcontent.length-1){
tabcontent[i].style.display = "none";
tabcontent[i+1].style.display = "block";
localStorage.setItem("last_visited",tabcontent[i+1].id);
break;
}
}
var tab = document.getElementById("ID");
var listTags = tab.getElementsByTagName("li");
tab.style.overflow="auto";
for (i = 0; i < listTags.length; i++) {
if(listTags[i].className.indexOf("active") > -1 && i<listTags.length-1){
console.log("test");
// listTags[i].className = listTags[i].className.replace(" active", "");
listTags[i].className = listTags[i].className.replace(" active", "");
listTags[i+1].className += " active visited";
if(i>4){
listTags[i-4].scrollIntoView();
}
break;
}
}
tab.style.overflow="hidden";
for (i = 0; i < listTags.length; i++) {
if(listTags[i].className.indexOf("active")>-1){
localStorage.setItem("last_visited_link",listTags[i].innerHTML);
if(localStorage.visit_history.indexOf(listTags[i].innerHTML) == -1){
localStorage.visit_history = localStorage.visit_history + listTags[i].innerHTML;
}
}
}
}
function previousPage(){
var tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
if(tabcontent[i].style.display == "block" && i>0){
tabcontent[i].style.display = "none";
tabcontent[i-1].style.display = "block";
localStorage.setItem("last_visited",tabcontent[i-1].id);
}
}
var tab = document.getElementById("ID");
var listTags = tab.getElementsByTagName("li");
tab.style.overflow="auto";
for (i = 0; i < listTags.length; i++) {
if(listTags[i].className.indexOf("active") > -1 && i>0){
// listTags[i].className = listTags[i].className.replace(" active", "");
listTags[i].className = listTags[i].className.replace(" active", "");
listTags[i-1].className += " active visited";
if(i>4){
listTags[i-4].scrollIntoView();
}
if(i<3){
listTags[0].scrollIntoView();
}
}
}
tab.style.overflow="hidden";
for (i = 0; i < listTags.length; i++) {
if(listTags[i].className.indexOf("active")>-1){
localStorage.setItem("last_visited_link",listTags[i].innerHTML);
if(localStorage.visit_history.indexOf(listTags[i].innerHTML) == -1){
localStorage.visit_history = localStorage.visit_history + listTags[i].innerHTML;
}
}
}
}
window.onload = function() {
var viewPortHeight = document.documentElement.clientHeight;
document.getElementsByClassName("tab")[0].style.height = (document.documentElement.clientHeight-20)+"px";
// If anyone knows why the above line is required please email to [email protected]!!
if(localStorage.last_visited !== undefined){
//for switching the display on for the last visited page and turning off the default page
document.getElementById("default").style.display = "none";
last_page=document.getElementById(localStorage["last_visited"]);
last_page.style.display = "block";
//for setting the last visited page as active in the left side index.
var i, listTags, tab;
tab = document.getElementsByClassName("tab")[0];
tab = document.getElementsByClassName("tab")[0];
listTags = tab.getElementsByTagName("li");
// overflow is set to auto for the menu in order to get the active element in the view.
tab.style.overflow="auto";
for(i = 0; i < listTags.length; i++){
if(listTags[i].innerHTML == localStorage["last_visited_link"]){
listTags[i].className += " active visited";
if(i>4){
listTags[i-4].scrollIntoView();
}
}
}
tab.style.overflow="hidden";
// tab.setAttribute("style","height:500px");
// For setting the previous visited links to visited status
for(i = 0; i < listTags.length; i++){
if(localStorage.visit_history.indexOf(listTags[i].innerHTML) > -1){
listTags[i].className += " visited";
}
}
}
}