Using Variable To Control Two Functions

Aug 11, 2011

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<title>JS: Image Slider</title>
<script type="text/javascript">
[Code]....

My problem is that every other turn I have to click either button twice to start the desired function. Say, I autoplay the images first and I want to shuffle them, I click shuffle and the autoplay stops working and I need to click shuffle again and then the shuffle runs. How can I make it clicked once and the function runs?

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Does anyone know how to control the sequence of JQuery $(document).ready functions? For example:

$(document).ready(function() {
...
});

Only if this returns true then do:

$(document).ready(function() {
...
});

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a.) specify two parameters for the changeYear function: today and holiday.

function changeYear(today)(holiday){

b.) in the first line of the above function, use the getFullYear() date method to extract the 4-digit value from the today variable and store the value in a variable named year.

first line

c.) in the second line; use the setFullYear() date method to set the full year of the holiday date object to the value of the year variable.

second line

d.) in the third line, use a conditional operator on the year variable. The test condition is whether the value of the holiday date object is less than the today date object. If it is, this means that the event has already passed in the current year and the value of the year variable should be increased by 1.

third line

e.) in the fourth line of the function, again set the full year value of the holiday date object to the value of the year variable.

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Jun 6, 2009

I have a problem that 'test' is not passed. The following function alert undefined, but it should alert test. Why that?

PHP Code:

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Is it possible to make a variable available to other functions outside a function So to make it global from within a function without using a callback

function() {
var something = 'hello';
}
function(something) {
document.write(something);
}

something like that possible??

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May 20, 2011

i'm having the following problem, normaly i work with html css and php but for this to work i need to make a litle javascript function and i'm still kinda new to it. so here is my problem.i'm making a search field where someone has to select some radiobuttons.first it has a selection out of 4 items and then a selection out of like 20 but how do i get the value from the first function in the second?in this case i would like to have the following in function showStreek:

xmlhttp.open("GET","test3.php?l="+land,true);
this line should look like:
xmlhttp.open("GET","test3.php?k="+kleur"l="+land,true);

[code]....

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May 28, 2009

I have been having trouble with forms and functions. On my wife's site I have some forms and some of them have radio buttons. My current radio button checker is cumbersome and it is time for something more elegant (some of you will say if it isn't broke don't fix it )

The new code is below:

Code:

Basically I want to pass into the function radio button values 1 & 2 denoted by firstChoice and secondChoice (eventually I want to also pass in the form name but 1 step at a time).

The buttons can have the value (names?) of pattern, chalkboard or kit. It is for a shopping cart (Mal's E-commerce) and this is part of the JS validation. I am using onsubmit to call the function viz.

HTML Code:

Seems ok (to me at least) but when I try to get it to work it throws up an error of

Code:

It stops at that point but undoubtably chalkboard would throw up the same error if it continued.

How would I define the variables in my function? Are they strings, integers, who cares?
Where would I define them? Global or local?

Is the problem a matter of syntax e.g. if I put ' ' or " " around them would that suffice?

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I do this in PHP, like $variable(); or {$variable . 'CallBack'} or using something like call_user_func().

I've been search all day though, and can't find how to do this in javascript. Is it possible?

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Nov 23, 2005

I am trying to convert some of my javascripts into a class and am
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Basically I have a constructor function for a calendarInput class that
takes 4 parameters, the first is a reference name/number for this
input. I also have some functions for importing my PHP classes into
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working but that's another story!). The relevant function is called
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post, callbackfunction). This creates an instance of the specified PHP
class using the parameters in createparams. It then calls the
specified method using the parameters in methodparams. The result is
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The function i am trying to fix is called show (x,y) which creates the
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So, my code is as follows:

function calendarInput(calendarid, target, displaytarget, value)
{
this.calendarid = calendarid;
this.target = target;
this.displaytarget = displaytarget;
this.value = value;

this.show = function(x, y)
{
<!--// bunch of init and prepping code. includes creating
createparams and methodparams arrays //-->

call_object_method("cms_calendar", "getcalendarview",
createparams, methodparams, false, this.showcallback);

}

this.showcallback = function()
{
alert(this);
<!--//code to create html//-->
}

}

I know i've cut out most of the innards of this. This is because I
have already tested these functions and had the calendarInput working
outside of a class, hence am pretty sure that this is ok (plus it runs
to almost 1000 lines these days!!). My problem is that when I call the
show method, the alert on the first line of the callback function
returns the function showcallback instead of (as i was expecting) the
instance of the calendarInput object. Whilst this kinda makes sense I
can't figure out how to reference the Object instead. I have tried
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way i reference the callback function (ie the final parameter of
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I've also noticed that in the docs jQuery.get() is described as jQuery.get( url, [data,] [success(data, textStatus, jqXHR),] [dataType] ). My question is, in the above example, the callback function is the second argument, whereas in the docs the second argument is data, and the third is the callback function. How does this work? Also, what does it mean when the arguments are laid out in an array-like fashion with commas in the square brackets? i.e. arg1, [arg2,]...

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I've recently started developing javascript using jQuery and so far I'm really enjoying it.Being a professional programmer (mainly C, C++, java and python) there is one thing that's been puzzling me regarding variable scope and unnamed function declarations. Let me exemplify:

------------------------
var sum = 0;
$(xmlobj).find("item").each(function(){

[code]....

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Jun 7, 2009

I have a problem that 'test' is not passed. The following function alert undefined, but it should alert test. Why that?

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Jul 25, 2011

I think the last thing people seem to learn about in JavaScript when they're not coming from other programming languages is variable scope. Some even get all the way into AJAX without having learned about scope, and this is a time when it's really needed. Although the scope of JavaScript variables is non-complex by nature, it's something we should all get a full understanding for before we move too far.
Section 1: What is "scope"?
Section 2: The "var" keyword
Section 3: The "this" keyword
Section 4: Closures or "Anonymous functions and self-invoking closures

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Demonstration code:

The 'array' variable contains strings representing the id's of different elements. If the for loop above were to finish iterating, would all the links in all three elements call the click function (that displays an alert message), or would only the last element ("element3") have the click function? For me, the latter seems to be the case unless if I'm doing something wrong, but I would like clarifications and, if possible, alternative solutions as to how I can achieve the former result.

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I am using Ben Alman's JQuery resize plugin in order to obtain the varying computed width of an element when the window is resized (the element in question is a page wrapper that exhibits the expand-to-fit behavior of a block box, and it's computed width is obviously influenced by the resizing of the window. Essentially, what I need to be able to do, is to reference a variable that is defined in a .resize() function ('width_page') in a seperate .each() function.

[Code]...

I now understand that variables can't cross boundaries like in the example above, which leaves me a little stuck. I also understand that this is specific to the context of the .resize() function, and that it can't be taken out of it without using an element selector. Is there some way I can call the .resize() function in my .each() function?

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Aug 20, 2009

I have written a number of functions designed to return frequency data on 1000 randomly chosen numbers using different math functions for the rounding. I would like to include all of these functions within the wrapper of another function so that only one call is needed to get returns from all of the 'inner' functions. However, while each of the functions works in isolation, the moment I wrap them in another function they stop working. :confused:

The following code is one of the functions 'frequencyWrapperOne' that has been wrapped in the function 'testWrapper'. A call to testWrapper does nothing.

function testWrapper()
{
function frequencyWrapperOne()
{

[Code]....

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I have several form in my site, that validate on onsubmit.I call all the validation functions from a file call functions.js.Here is a sample of the code that is working:

<form name="contact" action="contact-insert.php method="post" onSubmit="return checkform()">
<label class='SubHeadlbl' for='TextField1'><?php echo IDS_EFORMNAME?><br></label>
<input type='text' name='dfname' class='text_field' id='dfname1' size='70' maxlength='40'/>
</form>

all the other forms are not working. all have the same structure:

<form name="frm1000" action="frm1000-insert.php method="post" onSubmit="return checkform1000()">
<label class='SubHeadlbl' for='TextField1'><?php echo IDS_EFORMNAME?><br></label>
<input type='text' name='dfname' class='text_field' id='dfname1000' size='46' maxlength='40'/>
</form>

I don't know what is happening only one for work all the others don't.

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I am trying to declare a variable inside a function and use it later on in my code... but it just already returns white space... i.e. not variable value. I am setting it within this function:

function show_video1(){
document.getElementById('video1').style.display="block";
var video1Name = "Education World News (Part 1)";
document.getElementById('video2').style.display="none";
document.getElementById('video3').style.display="none";
document.getElementById('video4').style.display="none";
[Code]...

and trying to call it later on with this: <script type="text/javascript">document.write(video1Name)</script> It might be worth noting that each one of my 11 videos will hace a different name.

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i'm not really sure how to explain this, since I know nothing about javascript, so i'll try and illustrate by the use of php (hope it makes sence)

I have a set of different links, like:

<a href="link.com?page=text1">text 1</a>
<a href="link.com?page=text2">text 2</a>
<a href="link.com?page=text3">text 3</a>
etc, where page is dynamic and can be anything I chose..

Another place in the same document, I echo out what the page variable is, like:

echo "$page";
so when clicking "text 1" the echo will output what i've defined the page to be, in this case "text1" ..

So I want to be able to click the links and change the output of the echo all depending on what i've defined in the link - without refreshing the page!

Is there any easy way to do this?

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I would like to insert my own hidden control that can be posted back to to
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