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Code a HTML button to link to a JavaScript file

I'm trying to get a button written in HTML to link to a separate JavaScript file when it is clicked, the button in question is coded below
<input type="button" id="clickme" value="Submit" />
I am using the Brackets code editor, and the js file I want to be linked is in the same project as my HTML code, if that helps at all
thanks in advance

Load the script into the page with a <script> element.
Keep your code in a function instead of simply running the whole thing with the script is loaded.
Find the button in the DOM (e.g. with getElementById) and bind the function as a click event listener with addEventListener).

If you mean link, I would use an <a> (anchor) tag which has an attribute href which is the reference. Therefore, you could use:
Link to JS
Or perhaps you meant the onclick attribute which would be:
<input type="button" id="clickme" onclick="myfunction()" value="Submit" />
However, as was pointed out, this is not best practice either.
jQuery.click() vs onClick
Provides some options and reinforces the idea that onclick is not the best way to trigger a Javascript function.

Just link your js script to a page by:
<script src="js/button.js"></script>
and then just call action in that scripts through the class or id.
<button id="btnShow"><h1 class="jumbotron-heading">Expand</h1></button>
<p class="p1">Test</p1>
That's a jQuery not js, but anyway a good example as I think
$('#btnShow').click(function(){
$('.p1').show();
});

javascript split text into list of words and then dynamically added to div, form tag messing it up

I was testing this code out in an asp.net webform as I am looking to split a text into a list or words in javascript and have each added to its own div.
http://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_split
However in an asp.net webform, the sample code alone produces strange behavior, and the result appears and disappears. Simply adding the form tags to the online sample reproduces the behavior.
<form id="form1" runat="server">
</form>
Is there a workaround for this or alternative ideas to do this in javascript?
Thanks

The behavior you are experiencing is happening because the button is triggering a postback to the server. This essentially reloads the page which is why it appears as though the text is appearing then disappearing right away.
You can fix this by adding in a return false; after onclick="myfunction()" like this:
<form id="form1" runat="server">
<p>Click the button to display the array values after the split.</p>
<button onclick="myFunction();return false;">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
var str = "How are you doing today?";
var res = str.split(" ");
document.getElementById("demo").innerHTML = res;
}
</script>
</form>
However, I do not recommend using the onclick attribute to call a JavaScript function as there are better ways to do this. For the purpose of your example, I provided the simplest solution to the problem, but I want to make you aware that there are better ways to handle this.

As an extension to Howard Renollet's explanation for the form behavior:
A <button> element has different types. W3Schools mentions that "different browsers may use different default types for the element."
When in a form, the submit and reset types will actually do things to the form! In order to put a button into a form without it submitting the form, set the type to button:
<form>
<button type="button">Yay, I won't submit this form!</button>
</form>

Clicking a button on a webpage using JQuery or Javascript

I've been rummaging through the web to how to click buttons for a project I'm working on with Javascript+JQuery(Still not very good). Luckily I was able to find my answer and figured out how to click basic HTML buttons that looked like this(Cut off some of the code just to get the point across).
<div class="ui-block-a">
<input type="submit" value="Buy Now" data-theme="d">
</div>
But now I've come across a button like this.
<div id="BuyWithRobux">
<div data-expected-currency="1" data-asset-type="T-Shirt" class="btn-primary btn-medium PurchaseButton " data-se="item-buyforrobux" data-item-name="Donations" data-item-id="170938328" data-expected-price="2" data-product-id="20832770" data-expected-seller-id="180359" data-bc-requirement="0" data-seller-name="Clone3102">
Buy with R$
<span class="btn-text">Buy with R$</span>
</div>
</div>
Just based off of what I know I don't think I can use what I used to click the last button which was...
$("input[type='submit']").click();
So my question is how can I click this "button"? I've tried using my old code on it to no avail. I rather not use Selenium, or anything if at all possible. Could anyone help me out with this? If you need anymore information just say what and I'll do my best to provide it, fairly new to this so don't know what to include sadly.
Thank you in advance.

By "clicking this button" If you meant to trigger a click on div#BuyWithRobux , You can do so like
$("#BuyWithRobux").click();
or
$("#BuyWithRobux").trigger("click");
The syntax for triggering a click remains the same, all you've to do is to use the right selector to target the element on which you need to trigger the event.
You can learn more about jQuery selectors here

HTML/JS: Confused about method to create an image button

I need to create a simple button made only of an image, and which will open a JQuery Dialog when the user clicks on it.
I am doing some reading and notice many solutions: <button>, <image> with a <a>, using CSS to modify a button background, etc...
This is confusing, what is the proper way to implement my image button?
Thanks.
P.S.: The button/image should be focussable. An operational JSFiddle example is welcome.

The proper way largely depends on what the button will do if JavaScript is not available.
If you are going to submit a form then:
<button> <img src="..." alt="..."> </button>
If you are going to go to a URL then:
<img src="..." alt="...">
If you are going to do absolutely nothing (generally not a good idea, you should follow the principles of Progressive Enhancement and Unobtrusive JavaScript, but acceptable if you only generate the button with JavaScript in the first place and the loss to the user is convenience rather then essential functionality):
<button type="button"> <img src="..." alt="..."> </button>
You then bind the JavaScript to either the form's submit event, or the button/anchor's click event and prevent the default behaviour so the form won't be submitted / the link won't be followed if the JavaScript executes successfully.

Create a button and put background-image for it.
Checkout the fiddle.
http://jsfiddle.net/siyakunde/Y38nz/

I found the solution after many struggles: http://jsfiddle.net/YRY8M/3/.
<html>
<head></head>
<body>
<input type="image" tabindex="0" onclick="doSomething()" src="http://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/White_and_yellow_flower.JPG/320px-White_and_yellow_flower.JPG"
/>
<br />
<button tabindex="1">I am focussable too !!!</button>
</body>
</html>
And some javascript:
function doSomething() {
alert('Hello!');
}

It depends on what you want to do in every case. There is no guideline that says "you should do it like this", but there are situations that some cases are more suitable than others.
For example according to this review, IE versions of 8 and below have some buggy behaviour regarding <button> tag when trying to use it as a submit button.
Ηowever the <button> has some new attributes added in HTML5 which you can see here , ammong them is autofocus and other useful that will be supported by most modern major browsers.
In your case that you want to maintain the "focus" (i assume with tabbing support), if you use a single <image> as a button (with or without <a>), you will have to add some JS code to make the image focusable when the appropriate tab is pressed. So you will have to write a bit more code to do the same thing.
There is one more solution which might be suitable for you, since you do not need to submit the form to server side. Using the <input type="image" type and defining the src attribute inside it, will be focusable and not require neither any JS code to run nor any difficult CSS. You can find more about it's syntax here
So, it ends up to you to decide which one of all them to use.
I would use the one that i find more flexible, easier for me to code, easily reusable and is supported by most of my target browsers.

Use jQuery as you own it...
<html>
<head>
<script src="http://code.jquery.com/jquery-1.8.3.js"></script>
<style type="text/css">
#theBtn{
margin: 20% auto 0;
background: url('http://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/White_and_yellow_flower.JPG/320px-White_and_yellow_flower.JPG');
width: 100px;
height: 50px;
}
</style>
</head>
<body>
<div id="theBtn"></div>
<script type="text/javascript">
$(document).ready(function(){
$("#theBtn").click(function(){
if(confirm('Are you sure?')){
$("#theBtn").fadeOut('slow');
}
});
});
</script>
</body>
</html>

Inside a <button> tag , put your image, and attach an click event to <button> to open the dialog on click.
JSFiddle

First thing, There is either an image or a button. But not both.
I would say, create an image and place your code in the onclick() function of that image.
var img= $("#my-image-id");
image.click(function() {
// your code here
}

As I know You can't change the look of the Safari buttons thats why I suggest to use a for the solution. Here is my simple code: http://jsfiddle.net/djgBK/1/
The basis is:
Take an a element put the link content to the left,
Then replace it with image that is actualy it's background. Becouse it's a element user can select it usin only TAB button.
What's more using an a elemet will let You to put title which will be displayed after hovering/entering over the button.

How to access an object that is inside two html forms using javascript?

why if this code works:
<form name="form1"><textarea class="xxlarge" id="add_url_desc" name="j_desc" onKeyDown="textCounter(document.form1.j_desc,'job_limit',150)" onKeyUp="textCounter(document.form1.j_desc,'job_limit',150)"></textarea>
why this one dont?:
<form name="general">
<form name="form1"><textarea class="xxlarge" id="add_url_desc" name="j_desc" onKeyDown="textCounter(document.general.form1.j_desc,'job_limit',150)" onKeyUp="textCounter(document.general.form1.j_desc,'job_limit',150)"></textarea>
</form>
Why i cant trigger the onKey action when one form is inside other one??? Thanks!

HTML doesn't allow nested forms.

You just can't nest forms in HTML. It will never work right... not only will javascript break, the browser won't know how to handle the forms either. Sorry.