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Disable a button where the Id that starts with

My buttons (it's inside a for loop) get a name from the database using .getName()
I'm trying to disable a button in javascript based on that name. But I can't seem to find the right way. Any help please?
HTML
<button class="btn btn-success btn-sm startDocker" id="start-<%=environment.getName()%>" name="<%=environment.getName()%>">Start</button>
This code is wrong.Now I wanted to disable the button with a the container.containerName
$('start-' + container.containerName).prop('disabled', true);

HTML5 Javascript function not getting called on button click

I have an html page, thats intended to take user's email and password. I defined "login()" method in one of js file but the function doesn't get executed after button click.
HTML file:
http://pastie.org/10276940

Ok,
first, you should be careful about quotes and double quotes... there is already a mistake in your onclick code.
Then, I would not use onclick. I would do it by adding an eventListener (click) on the button, like this :
document.getElementById('myButton').addEventListener('click',function(){
//do something
});
Here is an example on this way to do it.
There are several other ways to do this, like you did with onClick, but here is just the way I would do the job.
http://jsfiddle.net/tz4bnu0m/4/
Problem is also that when you call login in your onclick event, function is just not defined (yet), here is a way to do it with your onclick event, just add function definition before you call it in onclick event :
http://jsfiddle.net/tz4bnu0m/5/
Hope it helps!
(since it is not an input type submit, you don't have to handle default action, click will not submit the form by default)

The problem is on the button.
<button class="btn btn-lg btn-primary btn-block btn-signin" type="submit" onclick="login(document.getElementById("inputEmail").value,
document.getElementById("inputPassword").value)">Sign in</button>
You are mixing double quotes. Change it by single quotes an it works
<button class="btn btn-lg btn-primary btn-block btn-signin" type="submit" onclick="login(document.getElementById('inputEmail').value,
document.getElementById('inputPassword').value)">Sign in</button>
This works but...
I don't recommend to you to make this events in HTML directly. You can separate this code and make it more reusable:
<button id="myID"></button>
<script>
document.getElementById("myID").onclick = function() {
// good stuff
};
//other way:
document.getElementById("myID").addEventListener('click', function() {
// good stuff
});
</script>
Good luck

Java Script Function Not working

Please refer to following section of a Form code. When I click 'SAVE 1' button, nothing happens. On clicking 'SAVE 2' button, alert is displayed. Not sure why 'display(') is not getting invoked on clicking 'SAVE 1' button.
<script type="text/javascript" >
function display()
{
alert("Hello there");
}
</script>
<button id="myFormSubmit1" type="button" class="btn btn-default" onClick='display();'>SAVE 1</button>
<button id="myFormSubmit1" type="button" class="btn btn-default" onClick='alert("Hello there")'>SAVE 2</button>

Do your button elements have actually the same id?
You need to make the id unique I guess.
<button id="myFormSubmit1" type="button" class="btn btn-default" onclick='display();'>SAVE 1</button>
<button id="myFormSubmit2" type="button" class="btn btn-default" onclick='alert("Hello there")'>SAVE 2</button>

Change the button id,it looks same it may not work

yes change your button id . if u want to use same id means use jquery like this
$(document).ready(function(){
$(".btn").click(function()
{
alert("you get particular button attribute")
});
});

Where did you put your js code? I am sure if you put it in the right place, it should work.
button ids should not be same.
move your script to the bottom of the body and I believe it should work.

as everyone else suggested, the button id's have to be different but only if you try to access the buttons,
your issue lies somewhere else. the button id's have nothing to do with your issue
the problem is that you have put your script in the wrong place.
put it in the <head> section and it will work.
here is an example: FIDDLE
*note on the top left panel i chose to appent the scripts in <head> section.

Disabling a button when clicked

I have a form which users can use to send an ecard.
This is an example URL:
http://jimpix.co.uk/ecards/normal-ecard.asp?id=5480
At the bottom of the form there is this HTML (covering the send buttons):
<div class="col-lg-6">
<legend>Next bit...</legend>
<button type="button" id="BtnPrev" class="btn btn-info" onclick="return valFormPrev(theForm,'preview');"/>Preview Your Ecard</button>
<button type="button" id="BtnGo" class="btn btn-success" class="preview" onclick="return valFormGo(theForm,'process');"/>Send Now</button>
<p class="top10">Reset buttons so you can use them again</p>
</div>
Because the page can take a while to process when users click on a button, I added this to the end of the JS used to validate the forms (located at http://jimpix.co.uk/dist/js/ecard.js)
Say a user clicks the "Send Now" button, it calls the "valFormGo" function.
That contains this code near the end:
document.getElementById("BtnGo").disabled = 'true';
That disables the button if the user click on it, so they can't click it many times and send the same ecard many times.
That seems to work okay, but if, once they have sent the ecard, they press the back button to e.g. send again to someone else, the button remains disabled, even if the page is refreshed.
I had to set up a function to allow them to make the buttons active again via:
function ResetBtns()
{
document.getElementById('BtnPrev').removeAttribute("disabled");
document.getElementById('BtnGo').removeAttribute("disabled");
}
That works, but it is clunky.
I just wondered if anyone knows of a more elegant solution I might be able to follow to disable the button when pressed, or maybe have the button change the text to say "processing..." when it is waiting for the next page to process the data.
Basically I have made a hack job of this and it would be much appreciated if anyone might be able to advise please on possible alternatives.
Any advice would be much appreciated.
Thanks

Why not process the ecard on the same page using ajax method, then on success you can un-disable the submit button.
Can't really offer any code at this time as not sure of your current flow / method being used.

Try this:
//to disable buttons
$('BtnPrev').click(function(){
this.prop('disabled', true);
});
$('BtnGo').click(function(){
this.prop('disabled', true);
});
//to enable buttons
function ResetBtns() {
$('BtnPrev').prop('disabled', false);
$('BtnGo').prop('disabled', false);
}

Just make the function run like this:
<button onclick="myfunction()" id="activate"></button>
<script>
function myfunction(){if(unrun==true){unrun=false;
document.getElementById("activate").innerHTML="Processing....";
code goes here;}}
</script>

Ajax on button click, but no forms involved

I would like to make an Ajax call on a button click, but I do not want the button placed within a form. Is this possible?

Yes, Ajax doesn't involve forms. It's basically a request that you create yourself to the server - either GET or POST. Make the request and pass whatever data you need to

Use this bit of code
<button onclick=function()>Button</button>

It is possible:
<form action="example.com" method="post">
...
</form>
<button name="button" id="button">Submit</button>
Way 1: use jquery selector and bind an event.
$('#button').click(function(e) {
//--> actions here
});
Way 2: or call a function in the button:
<button name="button" onclick="javascript:action();">Submit</button>
There's a lot to choose from.