Variable Not Changing On Pageload
Dec 21, 2010
[Code]...
What's happening: - On pageload the div with id="energytimer" shows the $timer variable - After one second (or more seconds) the amount of seconds is still the same - If I refresh the page the amount of seconds dropped (as should have been) Note: - The PHP is correct (or should be, just needs to be extended) - If I put an alert("test"); in the function timers() it shows every second Am I missing something really important? I posted this here because I thought my problem should be JavaScript related.
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Aug 20, 2009
for explanation it's a button that says "hide the div". when you click on it it hides and the button says "show the div". So far everything's perfect. My problem is, that I want the div to be hidden at the pageload and not shown. So to say the other way round.
This is the code:
<script type="text/javascript">
// jQuery fadeToggle plugin
jQuery.fn.fadeToggle = function(s, fn){
[Code]....
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Sep 13, 2011
what i wanna do is that when smone loads my website, the script initiate the left mouse click automatically. that is on page load mouse click is stimulated.
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Mar 19, 2010
i am testing XSS vulnerability for my site. I have put following code in the site and it executes.
Code:
<img src="/images/wp-btn.gif" onclick="alert('Gaurang')">
But the problem is i want to execute this function while page loads and not when someone lick on image.
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Oct 16, 2009
I'm trying to create an array of dates two weeks apart from an arbitrary startDate, and I've noticed some odd behavior in my variables. I did a little experiment on my JS console and here's what I got. My inputs are in blue, the output is in black.
Code:
Everything's good so far, but here's where it gets odd. I try to add 14 days to cur.
Code:
Why is it that when I make changes to cur, the same changes are made to startDate?
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Jun 3, 2009
Is there a way to prevent the brief display of all the photos in the cycle when the page loads? Problem affects IE7 and maybe others. [URL]
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Oct 4, 2010
What im trying to do is get the users location (from the iPhone) which I have working and store it in a MySQL database (semi works). My problem is that to get the location, you need to use javascript. So I thought of using Ajax to post that back to the server. I have very little knowledge in Javascript, and Ajax, so this has been a bit of a struggle. Iv tried to learn how to do it with a tutorial:
[Code]...
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Jul 19, 2010
I need to find a way to change a php variable with javascript.
lets say in php
PHP Code:
$a = '1';
I have a set of buttons (1) (2) I click (2), the onclick some how changes $a to '2'.
Is there a method for this?
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Jun 23, 2011
My code is pretty simple:
var runUpdate = true;
$.get("FirmMaintServlet?action=checkfirmid&firm_id="+$('#new_firm_id).val(), function(data) {
if(data) {
[Code]......
When this runs, if the first alert shows it is supposed to set runUpdate to false, as you can see. But when the second alert shows it is still equal to true.
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Oct 2, 2010
I have two pages. In one page I am changing the value of a variable called t, in the other I am outputting it. The problem I'm having is in changing its value.
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Nov 13, 2011
I am building a site where I want all links to partial page reload using xmlhttprequest and innerhtml. I have done this before, butI always had to have a seperate xmlhttprequest function for each link. So this time I am trying to write just one function, and have the onClick change which document the request is getting. It is not working and I appear to novice to figure out why. Here is the code, i have bolded some relevant lines:
<script type="text/javascript">
function ChangeContent()
{
var whichPHP;
[Code]....
Also, if I use the innerhtml function to write another of these hrefs, will that link be able to access the function if it is in the header, or should I put the entire function in a .js file on the server? The point of all this would be that the entire page never reloads and all the text content is swapped out on demand.
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Nov 26, 2010
im trying to change a variable set outside of a function and calling the function with an onchange... i'm having problems getting the variable to change
<script type="text/javascript">
var price = '<?php echo $price; ?>';
function addtwo()
{
if(document.add.size.value == "2xl")
{
price = price + 2;
}
}
</script>
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Aug 20, 2011
I need to change the value of a variable on a <select> question.
Code:
Currently the variable choses either 1or 2 so when I execute the function it will sum the value ie..3,6 ect.
I would like it to add the value in the text part of the option ie.. 5000,10000,15000.
I realize if I could I could change the value to be the same as the text value but the backend of this software needs the values to stay 1 or 2.
I was trying to do an "if else" statement but I am not sure how to format the syntax to work:
Code:
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Dec 22, 2010
I have a list of most 17 recent entries from a db table and wanna use jquery/ajax to have a next button that loads the next 17 entries when you click it. It passes the 17 variable to the .load which works fine first time around (this is later used as mysql limit), but then I try to increase the start variable with 17 so that next time I click it would pass 34 to the .load (so it loads next 17 again) but this doesn't work, it simply loads same 17 again on 2nd, 3rd ect. click (so nothing changes). use global variables by setting it with var and using it without var inside the function.
<script>
var start = 17;
var loadUrl = '<?php echo site_url('welcome/battles'); ?>';
$("#latestbattlesnext").click(function () {
[code].....
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Jan 12, 2011
I currently have a normal link like Code:<a href="http://sitepoint.com" class="link">sitepoint</a> and when a user clicks on it I want to be able to change the "link" class to a different class. However, I don't want to add anything to the actual link html. Is it possible to do this using javascript without modifying the original link code?
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Feb 2, 2011
I am trying to dynamically clear the value of a form input field and then submit the form.When I used $('#my_field').val('') to clear the field, it was cleared on the screen but when the form was submitted the original value of the input field was posted.My browser is FireFox and I can see using FireBug that when the field is cleared, firebug is still showing the html code with the old value. E.G. <input type="text" value="old_value" />The same situation occurred if I used $('#my_field').attr('value', '') to clear the field.The same situation occurred if I actually changed the value of the field rather than just clearing it.To work around this problem I ended up using the $('#my_field').removeAttr('value') to clear the field before it was submitted.
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May 7, 2009
I am a complete novice when it come to Javascript. I copied the script for displaying random images at a specific interval (from javascriptkit.com). I would appreciate knowing whether the following is possible:
The pages are based on tables, so the parts that change are all cells.
1. Can I define text instead of an image in the array? i.e. can I have the image change to say an apple in one cell and the next cell have text explaining what an apple is?
2. Would it be possible to put a countdown timer for when the image/text is going to change?
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Jul 6, 2011
Ive got a small image of a power button and when pressed the inner section on the button changes to yellow, but when its pressed down Im also trying to get part of my H1 (main header logo title) to change to yellow.
Ive created a span with an id surrounding the letters of the H1 that I want to change, the id being : "power";
The javascript that I have come up with so far and works is as follows:
<img id="poweron" src="http://www.sitepoint.com/forums/images/power.png" alt="Power on button" onmousedown="this.src='images/poweron.png';" onmouseup="this.src='images/power.png';"/>
I understand Im not really supposed to be using inline JS, and I know Ive got to create a function for the onmousedown event to trigger changing the H1 text, so am I under the right impression that the JS so far written is redundant and will have to be re-written so thats contained within a script placed just before the closing </body> and an external script for invoking the main function ?
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Aug 17, 2010
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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Oct 21, 2011
Ok, so I've built a member search using ajax to change the results each time a filter is changed. It works great, except one minor issue that I'm struggling with...I just can't specify dynamically in the parent file that linkclass$id opens linkclasscontent$id as I don't know of any way to pass that $id variable back over to the parent.
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May 28, 2007
i'm not really sure how to explain this, since I know nothing about javascript, so i'll try and illustrate by the use of php (hope it makes sence)
I have a set of different links, like:
<a href="link.com?page=text1">text 1</a>
<a href="link.com?page=text2">text 2</a>
<a href="link.com?page=text3">text 3</a>
etc, where page is dynamic and can be anything I chose..
Another place in the same document, I echo out what the page variable is, like:
echo "$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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Oct 13, 2009
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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Aug 12, 2011
Code:I am having problems with the following. I am wanting to hide <tr> in my table (employees) and only show employees that are in the selected department (selected via dropdown box).I need to set a javascript array to a php array. I am looping and assigning the array and am wanting to pass a javascript variable as the index in php array. I have marked my problem lines in red. Thanx for any help.
<script type="text/javascript" >
function display_elements()
{
var departments = new Array;
[code]....
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Dec 9, 2011
I am simply trying to use a global variable in javascript, but can only access the variable on the second call. I can't find anything that relates to this through my searches. My application is supposed to query the server for XML that tells me which years and months are available to put into combo boxes. I want to store this xml in a global variable to access it later.
[Code]....
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Dec 1, 2009
I start outside of the external JS file by: reviews.init(); reviews.initialiseContent('comment'); This loads my data and loads + sets the comment tab as default. My problem is that in the external JS file (shown below) the loadTabs variable will not allow me to pass it a variable: contentDiv.onclick = this.initialiseContent; Whenever I pass a variable here it errors, am I setting this up correctly, should I be using prototype for my this. variables? Interested to hear back on if this structure of code is the right way to go about this and also how I can pass a variable in this way :)
[Code]....
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May 15, 2011
I am trying to define a variable as follows:
var music_id = $(this).attr('id');
var mix_class = $('#le' + music_id);
In other words, if music_id is mix3, I want mix_class to be #lemix3.The above code is not working for me and I would like assistance as to the syntax to produce such a result
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