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changing id within javascript with onClick var?

I managed to get some js to work to my surprise, now I want to make it a little more complex which is way out of my expertise.
I have a button when clicked will reload a iframe that is on my page. I have multiple iframes all but 1 are hidden. Then I use jquery to display a different iframe and hidden the previous depending on the nav button clicked. e.g. "1-btn" (nav btn) tied to "1-win" (iframe), "2-btn" (nav btn) tied to "2-win" (iframe) etc. So when you click "2-btn", "1-win" iframe hides and "2-win" iframe is displayed. Now I want to change my code so this ties into my reload javasrcipt. Currently, my js only reloads 1 iframe via the iframe id. I want to change this id every time to a different iframe. This will allow my Reload btn to only reload the current iframe displayed and not any of the other that are hidden.
Here is my Reload js
function Reload () {
var f = document.getElementById('1-win');
f.src = f.src;
}
As you can see this reload script only works for iframe "1-win". When i click "2-btn" nav to display "2-win" iframe (and hides "1-win") the reload button still only works for "1-win". Therefore, I want it to also change. For e.g. when I click "2-btn" (nav) to display "2-win" iframe I want to change the Reload id to "2-win" also.
I was thinking of using onClick within my nav buttons which passed through the id of the iframe which that nav btn is tied to. However, I have no idea how to do this.
For full code see:
https://github.com/tmacka88/Service-Manager
Sorry if this doesn't make any sense, I cant think of an easier way to explain it.
Thanks

EDIT
This below answer may or may not still apply now that the problem has been better defined.
One approach you could try is having a hidden field on the page which contains a semi-colon separated list of the Id's of the iframes. E.g.
<input type="hidden" name="iframeids" value="1;2;3;4;5">
On the click event of your button, call some JavaScript which gets the value of the hidden field, takes the first token before the semicolon, and then reorganise the string. An example:
// Next value is 1
// Use 1 in your JS
// Put 1 to the end, next is now 2
<input type="hidden" name="iframeids" value="2;3;4;5;1">
You would contain the logic of re-arranging etc. in the JS function.

Now that the problem is better defined, we can work out a proper solution.
Here are some design considerations:
Ideally you do not want to manually add a new button for every iframe that you put on the page. Main reason being code maintenance. If you were to add a new iframe, or remove one, your code would not function correctly. Also the amount of mark-up required will be unnecessarily high
jQuery will make your life easier, although it's not required, it will cut out a lot of code. I can't stress enough the importance of knowing JavaScript basics first, but this is your responsibility to learn
For point 1, what we would like is a generic solution so that if you add more iframes, the buttons are added automatically. JavaScript is the way to do this (I'm assuming this is just HTML, not ASP.net or php or some other server side
Point 2 - jQuery will help with point 1.
Now we have this understanding, let's look at an outline of what we need to do:
In JavaScript, loop through the iframe tags on the page
For each iframe, generate a button using jquery, using the values like src and id in the iframe as attributes on the button
Add some click-event code to the button do define what it needs to do when clicked
Again using jQuery, add the newly created buttons to the DOM

This did the trick:
function Reload()
{
$("iframe").each(function()
{
if($(this).is(':visible'))
$(this).attr('src', $(this).attr('src'));
});
}

After button clicked, change to different page and show hidden content

I have some "Learn More" links on my Home page, all of which correspond to different sections of content that is on the More Info page. These different sections of content are all hidden using display: none.
What I'm wondering is if there's a way to make it so that when I click a particular "Learn More" link, the user will be sent to the More Info page, and the section of content corresponding to the Learn More link they clicked will be shown.
I can't think of a way to achieve this, but I'm hoping it will be possible, perhaps using JavaScript.
EDIT:
The code I currently have is nothing special. Four <a> links on the Home page, then on the More Info page, four divs that are all initially hidden using display: none.

The solution ended up being fairly simple, I did what is described in the top answer of this question: Getting URL hash location, and using it in jQuery

Learn more
<script>
function showContent(id) {
$("#"+id).show();
}
</script>

I think it is possible.You can take the information on a div,and then you click "Learn more",show the div.
In this way,you even needn't a hyperlink,just a click event,like the code upstairs.Of course,this div was hidden before.

One way you can achieve this would be to add a hash to that link with the id of the section you want to show, like this: Learn More. Then just check for it in window.location.hash on the /moreinfo page and show the div.

You have to do it this way: try to use named anchors.
first:
Learn More
when use clicks this link user will navigate to particular page with different sections.
second:
on this page suppose you want to show the 3rd section:
.....
<a name='section-3'></a>
<h1>Your section-3</h1>
In your case divs are hidden then use js or jQuery for this:
As you will get a hash in the location url then use .substr()' and.indexOf()` javascript methods.
try to put this script on those page where you are having your hidden divs
$(function(){
var url = window.location.href;
var obj = url.substr(url.indexOf('#'));
$(obj).show();
});

Javascript unfocus select menu

I have a big page, with full of (server side) generated information organized into "chapters". To allow an easier overview for the user I put a little element with CSS fixed position to the top right corner of the page.
<div class="selector">Goto section within the table: <select
id="chapterselector"
onChange="goto_section('chapterselector')">%SELECTOR%</select>
</div>
The text "%SELECTOR%" is replaced by the server side component to the correct option elements.
function goto_section ( element ) {
element = document.getElementById(element);
window.location = '#Chapter_' + element.value;
}
This is the JavaScript part for now. This works nicely. However one little issue remains:
Users (including me) can use the select menu to jump inside the document, but then often cursor arrow keys would be used to navigate to scroll the page. The problem: after using the select menu, it has the focus, so cursor keys now "scrolls" the possible choices inside the select menu. What I want: after using the select menu, I want it to lose the focus automatically, so cursor keys scrolls the page.
How can I do this? Thanks for any suggestion.

element.blur()
try that after setting the location

How to determine which div is currently displayed behind a button when button is pressed

I'm using Javascript/Jquery to have a button toggle which div is displayed in the user's window. I have my initial background div #container which gets toggled with a different div if the user clicks on a certain location. A back button is toggled on once the new div is displayed. I want the back button to switch the div back to the initial #container if it is pressed. The back button's display should be toggled off again if this happens.
Since I have different divs that the back button shows up in, I need to determine which background div the user is viewing in order to toggle that specific div off and the #container back on. The container will not display again if I do not toggle the current div off.
Here's my code for an example of one instance:
JS:
$(document).ready(function()
{
$("#backButton").click(function(e)
{
if(THE CURRENT DIV IS REGION 1)
{
$("#container").toggle(); //toggle the container on
$("#region1").toggle(); //toggle region 1 off
$("#backButton").toggle(); //toggle the back button off
}
});
});
Obviously, I do not know what code to use to determine which div the user is looking at. I tried if(document.getElementById('region1');) but it didn't work; I didn't think it would, but that's the direction I'm going as to how to determine the current div.
Any help would be greatly appreciated!

if($('#region1').is(":visible")){ etc... }

If you are talking about a back button located in the DOM inside the div region1, you could use:
if($(this).parents("#region1").length > 0)
Which says "if the number of parents of this button containing ID region 1 are non-zero". For more information see parents. In general the traversing functions in jQuery will be helpful to you.

This might be what you're looking for:
http://api.jquery.com/parent-selector/

If all you're doing is switching two DIVs back and forth, you don't even have to check which DIV is currently displayed, because the .toggle() function should do that for you out-of-the-box.
Consider you have two DIVs, make sure one is hidden and one is shown, like so:
<div id="region1">foo</div>
<div id="region2" style="display:none;">bar</div>
Now, when you click on the button, you just have to call .toggle() on both of them.
$('#backButton').click(function(){
$('#region1, #region2').toggle();
});
You can even get by with using only one button to do that, and just switch the text inside the button if you'd like.
// inside the click handler
$(this).val( $(this).val() == 'Next' ? 'Back' : 'Next' );
Full code example here: jsFiddle example

Show values in another document controls

I want to show some JavaScript array values in another document Input Boxes. Previously, I was using:
document.getElementByID('....').value = ....
Now I want to know how to replace the 'document' with another page.
Edited:
My page opens two tables side-by-side. First table contains controls and the second contains and IFrame and inside that frame is enclosed a data-grid. When the user clicks on a row in the grid, results are fetched and I want to show in the controls of table1.

You can use the context of the jQuery method ie the $(..., context) to do this.
$("#someElement", top.document).val($("#someOtherElement").val());
This sets the value of #someElement in the main document, to the value of #someOtherElement in the iframe. Code is supposed to be run from within the iframe, because that's where your button handling is most likely to be.
To go the other way you could use:
$("#someElement", $("#iframeId").contents()).val($("#someOtherElement").val());

In JavaScript the only other documents you can reference are iframes inside the page itself that have the same domain. You could simply do, var iframeDocument = document.getElementById("iframeId").contentWindow.document