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How to pass a variable from current window to another window

First Page
<button onclick="refereceid_Transfer()">Try it</button>
<script>
function refereceid_Transfer() {
alert('test');
var referenceid = "jggd154278";
referenceid = btoa(referenceid);
//sessionStorage.setItem("sent", referenceid);
window.open("second.jsp", "_blank", "toolbar=yes,scrollbars=yes,resizable=yes,top=500,left=500,width=400,height=400");
}
</script>
Second Page
<p id="s1"></p>
<script>
$(document).ready(function(){
// var a = sessionStorage.getItem("sent",id);
alert(a);
});
</script>
I need to pass my reference id from one window to another window. I tried use session storage and local storage to pass variable and i have failed in both condition. is there new suggestion that i can pass my reference id to new window.
Thanks

You can try localStorage for this.
Add item which you want to pass on another page:
localStorage.setItem("key", "value");
On another page you can access through:
localStorage.getItem("key");
You can store object data as well in localStorage. Note that clear localStorage if you're storing some sensitive information.
And simpler option is to use query parameter, but I think you're not okay with it.
Or you can use sessionStorage:
sessionStorage.setItem("key", data);
window.open("page_url","_blank");
on another page use:
$(document).ready(function(){
var data = sessionStorage.getItem("key");
console.dir(data);
});
Note: The sessionStorage object is equal to the localStorage object, except that it stores the data for only one session. The data is deleted when the user closes the specific browser tab.

You can do it with local storage or you can pass it in query parameters and read the query parameters at 2nd page.
If you are doing server side rendering you can also use session storage.

Add paraments to back button redirect to previous url

Ok so I have this code that allows me to redirect the users on my current page to any other page when they click the back button
The code works fine but now I would like to pass the URLs parameters from the previous page to the redirected page so for example. Lets us say that the main page the user is on is www.example.com/ready&val=1&base=2&timeid=3&rfid=4
I would like the &val=1&base=2&timeid=3&rfid=4 passed on to the end of the domain that the user is being redirected to when they click the back button
<script type="text/javascript">
!function(){
var c_link = "www.example.com/time";
var t;
try{
for(t=0;10>t;++t)history.pushState({},"","#");
onpopstate=function(t){t.state&&location.replace(c_link)}}
catch(o){}
}();
</script>
So the user gets to www.example.com/time I would like the &val=1&base=2&timeid=3&rfid=4 to be and the end of it.

I would not use HTML5 history.pushState for this as it is not supported for IE9 and previous versions. But I can give you a better solution. You can use sessionStorage and performance.navigation.type.
sessionStorage is a storage type like localStorage but it only saves your data for the current tab.
Session storage can be used like this.
sessionStorage.setItem('key', 'value'); //saves the value
sessionStorage.getItem('key'); //gets the saved value
performance.navigation.type is the browser is the variable that hold users navigation info.
if(performance.navigation.type == 2){
//User is coming with back button
}
With the information above we can solve your problem easily.
Script on next page
var values = {
val: 1,
base: 2,
timeid: 3,
rfid: 4
}
sessionStorage.setItem('returnData', JSON.stringify(values))
Here is our main page.
if(performance.navigation.type == 2){
var backValues = JSON.parse(sessionStorage.getItem('returnData'));
//Do whatever you need with backValues
}

var c_link = "www.example.com/time&val=1&base=2&timeid=3&rfid=4";
Please try to pas the value through the url itself.

How can I redirect with extra information in jquery?

I'd like to perform a redirect, but I also wish to send additional information along with it.
I've tried to change the value of window.location.href but that doesn't seem to pass along the extra information.
I also get how I can do
$.get(
new_url,
{data : "mydata"},
function(data) {
alert('page content: ' + data);
}
);
and that will display the html content of the new page, but that doesn't help with actually getting there.
How can I achieve this?
Edit: I feel as if I must be phrasing this terribly because I'm pretty sure this is an easy/common task. This shouldn't be something that would require cookies - it should basically be like a post request (I think).

You have a few different options for this:
URI Variables - You can append extra data to the URL by appending a question mark (?) followed by a set of key-value separated by an ampersand (=) with each variable being separated by an ampersand (&). For instance, http://www.google.com/search?q=javascript+url+variables&ie=UTF-8 gives you a link to a Google search for "javascript url variables" using UTF-8 encoding. Your PHP code or JavaScript would need to handle passing along and processing these variables. If using JavaScript a nice library for processing URLs is URI.js or using PHP you can use the parse_url and http_build_query functions. You can use this with window.location.href; for instance: window.location.href = "http://www.google.com/search?q=javascript+url+variables&ie=UTF-8" (replace the Google URL with the one you created or set in a variable).
Storage API - You can use the localStorage or sessionStorage properties to store and retrieve information using JavaScript (information is stored in the user's browser - supported by IE 8 and newer and all other major browsers). Note that this is JavaScript only unless you grab the data with JavaScript and pass it to your PHP server through URL variables, form, AJAX request, etc.
Cookie - You can store additional information inside a cookie - however this is more difficult since you have to setup your variables as a parsable string (possibly JSON) and remember to encode/decode the string when setting/getting the cookie. I don't recommend this method.
IndexedDB API - This is a more advanced client-side/browser storage mechanism and currently only supported in IE 10 and newer (and nearly all other browsers). There are also still changes being made to the standard which means newer versions of browsers could break current implementations or be buggy. If all you need is simple key-value storage (not an SQL-like database) then you should stick with one of the above options.

You can use the window open method to redirect your user,and remember to use "_self"
window.open('url','_self');

Preferably you'd store the data in localStorage and fall back to a cookie (I really like js-cookie).
Here are the two helper functions you need to store and retrieve data:
function setMultiPageData(itemName, data) {
var dataStr = JSON.stringify(data);
var hasLocalStorage = typeof localStorage !== 'undefined';
if (hasLocalStorage) {
localStorage.setItem(itemName, dataStr);
}
else {
Cookies.set(itemName, dataStr, { path: '/' }); // path set to root to make cookie available on any page
}
}
function getMultiPageData(itemName) {
var data = null;
var hasLocalStorage = typeof localStorage !== 'undefined';
if (hasLocalStorage) {
data = localStorage.getItem(itemName);
}
if (!hasLocalStorage || data === null) {
data = Cookies.get(itemName);
}
var parsedObject = null;
try {
parsedObject = JSON.parse(data);
}
catch (ex) {
console.log(ex); // remove in production
}
return parsedObject;
}
usage:
var data = { first: 'this is the first thing', second: 'this is the second thing' };
setMultiPageData('stackoverflow-test', data);
// go to a new page
var retrievedData = getMultiPageData('stackoverflow-test');
if (retrievedData === null) {
console.log('something went wrong')
}
else {
console.log(retrievedData); // { first: 'this is the first thing', second: 'this is the second thing' }
}

How to make a web app retain information?

Ok... so a user enters info into the journal field and hits submit, and a function gets called on the information they have submitted, which I call changeTextComment(). That function calls another function and so on as the info is formatted and placed in the cue, as in a Facebook commentary.
I need this information saved so it can be recalled later, in local storage, making the app not refresh every time I restart it. So...
<script>
function appCache() {
// Check browser support
// this is experimental for local storage...
more here: http://www.w3schools.com/html/html5_webstorage.asp
if (typeof(Storage) != "undefined") {
localStorage.setItem(para);
// Retrieve
document.getElementById("journal").innerHTML = localStorage.getItem(para);
} else {
document.getElementById("result").innerHTML = "Sorry, your browser does not support Web Storage...";
};
</script>
So looking at the appCache function it seems like it might work except I need to identify what the key variable is that will be stored and then retrieved.
I think this is the variable userInput, as any time the user hits the 'add to journal' button this variable is used to store the user input and then put into the changeTextComment() function.
I am wondering if this is the simplest way to deal with this whole thing... I do not yet understand databases, but wondering if that would be easier to learn.
In this case, I would add the function Appcache() to the function changeText() such that it caches the variable and then how would I set it up to then feed the value of the variable's cached info into changeText() upon launch of the app?
Every submission to the journal will have a unique value.
Heres the ChangeTextComment() Function... still sorting out how to use classes in css to simplify these functions:
function changeTextComment(){
// to be modified from the above to change the location of the dump
var userInput = document.getElementById('userInput').value;
// get the input from the user
var panel = document.createElement("div"); // create a parent divider for everything
// assignment of attributes
panel.setAttribute("class","panel panel-default panel-body");
panel.setAttribute("id","panelBody");
var para = document.createElement("P");
var t = document.createTextNode(userInput);
para.appendChild(t);
// add comment area
var c = document.createElement("INPUT");
c.setAttribute("type", "text");
c.setAttribute("id", "comment");
c.setAttribute("placeholder", "comment here");
c.setAttribute("class", "form-control input-lg");
// add comment button attempt -- success <> now try to put it in the textarea
var d = document.createElement("INPUT");
d.setAttribute("type","button");
d.setAttribute("class","btn btn-info active pull-right");
d.setAttribute("onclick","commentThis()");
d.setAttribute("value","Add Comment");
panel.appendChild(para); // this is where a comments piece would go
// place the item
var destination = document.getElementById("journal")
//destination.insertBefore(Commentaryarea, destination.firstChild);
//destination.insertBefore(panel, destination.firstChild);
destination.insertBefore(panel, destination.firstChild);
panel.appendChild(c);
panel.appendChild(d);
document.getElementById("userInput").value = "";
document.getElementById("userInput").focus();}
</script>
<script>
function setText(a){
document.getElementById("userInput").value = a
document.getElementById("userInput").focus();
}
</script>

When you say "stored locally", do you mean stored in the visitors browser, i.e. with only themselves being able to see it and retrieve it? Or do you want other users to be able to see the data, and/or the commenter to be able to see it if they log in later from another location?
If it's the latter then you need to store it on the server side, and you're going to need a database for that. If all you need is to store journal entries then mongoDB is easy to set up with javascript, but if you have a lot of relations (journal entries being associated with users, comments on entries being associated with users and entries, ect) then perhaps an SQL database would suit you better.

Saving several ID's to one jQuery cookie and retrieving all values later

I'm building an image gallery on WordPress and I want to add a save to lightbox or save to collection function so that I can collect images with a click of a button and then download all images as a zip later. It sorta like a shopping cart without actually buying the stuff that you want. I want it just to be a per session kind of thing so that you don't need to register to the site.
So on my images page, I put a Save to lightbox button and I want to save the ID of this image to a cookie and then I keep adding images to it until I'm done and will click a view lightbox button that will list all of my collected images.
I know how to set a cookie but I don't know how to append values to it.
function saveLightbox(ID){
$.cookie('the_cookie', ID, { expires: 7 });
document.getElementById("result").innerHTML = $.cookie('the_cookie');
}
Here's fiddle of roughly how I want it to work.

To append values to the jQuery cookie, first of all you have to enable the storage of objects. Then you initialize a variable holding the content of the cookie. If the cookie is empty then initialize an empty array. Next, you push the ID to the array. Finally, you store this array in the cookie.
The following code illustrates what it is said above:
function saveLightbox(ID){
$.cookie.json = true;
var idContainer = ($.cookie('the_cookie')) || [];
idContainer.indexOf(ID) === -1 && idContainer.push(ID);
$.cookie('the_cookie', idContainer, { expires: 7 });
document.getElementById("result").innerHTML = $.cookie('the_cookie');
}
Another thing to consider, is that once an ID is already stored in the cookie you might want to prevent adding it again, that is the reason for line 4. You can find the working example here: jsfiddle.

save an array and push id's to that array:
var ids = $.cookie('the_cookie') || [ ];
function saveLightbox(ID){
$.cookie('the_cookie', ids.push(ID), { expires: 7 });
console.debug(ids);
console.debug($.cookie('the_cookie'));
document.getElementById("result").innerHTML = JSON.stringify($.cookie('the_cookie'));
}
(can't test or demonstrate atm, jsfiddle is not available (for me).)