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Trying to Hide Javascript form

Ok I'm trying to auto login a guest account and it requires:
In header
<script language="JavaScript" type="text/JavaScript">
function guestLogin() {
document.form_login.username.value = 'guest';
document.form_login.password.value = 'guest';
document.form_login.submit();
}
</script>
And
<form action="https://www.redcheetah.com/WebPrefex/" method="post" name="form_login">
<input name="username" type="text" value="" />
<input name="password" type="password" value="" />
<input name="form_action" type="submit" value="Login" />
</form>
javascript:guestLogin();
How would I get the javascript:guestLogin(); to work without having the Login form on the page.
Any Tips?
Thanks

If you need the form to be on the page - if you can't create it on demand for whatever reason - then if you want guestLogin to work without the user seeing the form, you'll have to hide the form using CSS. It'll still be submittable, it just won't be visible:
function guestLogin() {
document.form_login.username.value = 'guest';
document.form_login.password.value = 'guest';
console.log('submitting');
document.form_login.submit();
}
document.querySelector('div').onclick = guestLogin;
form {
display: none;
}
<form action="https://www.redcheetah.com/WebPrefex/" method="post" name="form_login">
<input name="username" type="text" value="" />
<input name="password" type="password" value="" />
<input name="form_action" type="submit" value="Login" />
</form>
<div>click to submit</div>

jquery validation enable form when all fileds valid : do no show error for empty fileds

I want button to enable if all fields are valid, as no button enable and disable works fine, but when I move to next fields it highlights error for all fields, but I do not want this to happend any way to fix it, please guide way for it.
JS code:
$(document).ready(function() {
$('input').on('blur', function() {
if ($("#myform").valid()) {
$('#submit').prop('disabled', false);
} else {
$('#submit').prop('disabled', 'disabled');
}
});
$("#myform").validate();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.13.1/jquery.validate.js"></script>
<form id="myform">
<input type="text" id="name2" name="name2" class="required" />
<br/>
<input type="text" id="name" name="name" class="required email" />
<br/>
<input type="text" id="name1" name="name1" class="required number" />
<br/>
<input type="submit" id="submit" disabled="disabled" />
</form>

at the end of input you also have to click outside to form that will blur and will validate . otherwise it won't work
$(document).ready(function() {
$('input').on('blur', function() {
if ($("#myform").valid()) {
$('#submit').prop('disabled', false);
} else {
$('#submit').prop('disabled', 'disabled');
}
});
$("#myform").validate();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/jquery.validation/1.15.0/jquery.validate.min.js"></script>
<script src="https://cdn.jsdelivr.net/jquery.validation/1.15.0/additional-methods.min.js"></script>
<form id="myform">
<input type="text" id="name2" name="name2" class="required"/><br/>
<input type="text" id="name" name="name" class="required email"/><br/>
<input type="text" id="name1" name="name1" class="required number"/><br/>
<input type="submit" id="submit" disabled="disabled" />
</form>

The issue is that you are validating the entire form , this would validate all the fields at the same time. You need to loop through each input and explicitly check each field to see if they are valid. If all of them are valid, only then enable submit button.
$(document).ready(function() {
$('input').on('blur', function() {
var allowSubmission = true;
$("input").each(function() {
if(!$(this).valid())
{
allowSubmission = false;
return false;
}
});
if(allowSubmission)
$('#submit').prop('disabled', false)
else
$('#submit').prop('disabled', true)
});
});
Example : http://jsfiddle.net/sd88wucL/109/

Password in confirm box Javascript

I have a Delete button in my PHP page which deletes a record.
But when I delete that button I do a confirm box with:
<form action="log.php" method="post" onsubmit="return confirm('Are you sure?');">
Can I make it so when they confirm they have to fill in a password?
So what I mean is something like this
<form action="log.php" method="post" onsubmit="return confirm('password :');">
And then they have to fill in a password
Thanks in advance.

Hi You Need some thing like this, Modify according to your requirements
<script>
function do_check()
{
var return_value=prompt("Password:");
if(return_value==="your_password")
return true;
else
return false;
}
</script>
<form action="log.php" method="post" onsubmit="return do_check();">

Try using input type="password" , required attribute` ; disable submit until password set
document.forms["form"].querySelector("input[type=button]").onclick = function(e) {
e.preventDefault();
this.nextElementSibling.disabled = false;
this.nextElementSibling.nextElementSibling.disabled = false;
}
<form name="form">
<input type="button" value="Are you sure?" />
<input type="password" minlength="3" maxlength="7" required disabled />
<input type="submit" disabled />
</form>

document.forms["form"].querySelector("input[type=button]").onclick = function(e) {
e.preventDefault();
this.nextElementSibling.disabled = false;
this.nextElementSibling.nextElementSibling.disabled = false;
}
<form name="form">
<input type="button" value="Are you sure?" />
<input type="password" minlength="3" maxlength="7" required disabled />
<input type="submit" disabled />
</form>

How to get data from form to javascript and redirect to another page?

I have a html5 form with name, surname ect. The reason why I'm using a form is so that the user has to fill in everything, for that I'm using required. I want to save all the data in localStorage, for that I need to move the data to JavaScript.
How do access the data in JavaScript when the submit button is pressed while redirecting the user to another page?
This is the code:
Html5
<form id="TheForm" method="post">
<input type="text" id="Name" placeholder="*Förnamn" required >
<input type="text" id="Surname" placeholder="*Efternamn" required >
<input type="email" id="FirstEmail" placeholder="*e-postadress" autocomplete="on" required >
<input type="email" id="SecondEmail" placeholder="*Verifiera e-postadress" autocomplete="off" required >
<input type="text" id="Address" placeholder="*Adress" required >
<input type="submit" id="Submit" onclick="function()" value="Skicka">
</form>

var submit = function () {
window.localStorage.name = document.getElementById('Name').value;
// Save all the other fields
// You either return a non-false value here and let the form submit
// Or you return false and do a window.location change
};
window.onload = function () {
var form = document.getElementById('TheForm');
if (form.attachEvent) {
form.attachEvent('submit', submit);
} else {
form.addEventListener('submit', submit);
}
}

Try this
Java Script
function storeDetails() {
if(typeof(Storage)!=="undefined") {
localStorage.setItem('name', document.getElementById('Name').value));
//code to store other values will go here
} else {
alert('Your browser do not support local storage');
}
}
HTML
<form id="TheForm" method="post" onsubmit="javascript:storeDetails();" action=" ">
<input type="text" id="Name" placeholder="*Förnamn" required >
<input type="text" id="Surname" placeholder="*Efternamn" required >
<input type="email" id="FirstEmail" placeholder="*e-postadress" autocomplete="on" required >
<input type="email" id="SecondEmail" placeholder="*Verifiera e-postadress" autocomplete="off" required >
<input type="text" id="Address" placeholder="*Adress" required >
<input type="submit" id="Submit" onclick="function()" value="Skicka">
</form>

Remove unchanged input fields from Form while submit

In my web application I have edit profile page. In editprofile page their is many fields like
Name : <input type="text" name="name"/>
Location : <input type="text" class="geolocation" name="location">
Birthdata : <input type="date" name="dob">
Profile Picture : <input type="file" name="photo"/>
I want to send back the data of only the fields which are edited and not all the fields.

I'd normally do something like this on the backend.... but for your requirement you could remove the inputs that haven't changed. When you generate the html you can define an extra data attribute. Here's how I would do that:
HTML:
<form id="myform">
<input type="text" id="Name" data-initial="Foo" value="Foo" />
<input type="text" id="Location" data-initial="Bar" value="Bar" />
<input type="submit" value="Submit" />
</form>
JS:
$("#myform").submit( function() {
$(this).find("input").filter( function() {
$this = $(this);
return $this.data("initial") == $this.val();
}).remove();
});
http://jsfiddle.net/uLe7T/
I added an alert in the fiddle so you can see that they are removed before the form is submitted

jsFiddle
HTML
<input id="test" type="text" value="Some Text" data-value="Some Text">
JS
$('#test').blur(function() {
el = $(this);
if (el.val() != el.attr('data-value')) {
console.log('Edited');
} else {
console.log('Not Edited');
}
});