Unable To Access Javascript Function On <body> From <head>
Jul 23, 2005
in the body tag, I have this code (just to test):
<script LANGUAGE="javascript">
<!--
function hiThere() {
alert("hi");
return true;
}
//-->
</script>
in the head section, I have this code:
<script LANGUAGE="javascript">
<!--
document.body.onload=hiThere();
//-->
</script>
By the way, I know someone will comment, by "does not work, I mean on
the load of the page, the alert is not displayed, nor are any errors.
Thanks for any help you can offer.
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Feb 25, 2011
How to: pass local variable from <head> JS function to <body> textarea
I have a JS function in the head that calculates a variable. the function is triggered by the vevent of a button click. when calculation is done, how is it sent back to the page and placed in a textarea or textbox?
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Feb 2, 2011
I am having trouble loading a drop down menu list script that I got from Dynamic Drive.Here's the original test page. (Works Fine)
<html>
<head>
<script language="javascript" src="http://www.modbargains.com/images/Javascript/ChainSel/chainedmenu.js">
</script>
[Code]...
I am not sure if the function is correct but it does not work. Any ideas how I can make this work????
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Aug 1, 2011
I can get Scripts to work fine in the <body> but not all scripts seem to work in the <head>
For example, this works fine:
<html>
<body>
<p id="date"></p>
[Code]....
It could just be that I broke one of the fundamental laws of coding that I don't know or something but like I said, I've only just started JavaScript. Also, the tutorial I have isn't to clear on the differences between using the <head> or the <body>. Just kinda says you can do both.
I'd like to use the <head> wherever possible because it would be so much neater to keep all the JavaScript in one place and all the HTML in another. Pretty much like you can do with CSS.
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Jun 9, 2009
This questions mainly regards using google's analytics code on some of our websites. We currently place the code at the footer as it can hinder load times if placed further up in the page.
For this, or in general use, is placing javascript in the BODY or HEAD better for one or the other as far as load times? Can placing scripts in one or the other allow the page to load concurrently with the script and not sequentially?
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Aug 21, 2011
I've written a jQuery script for a crossfade slide show. My script works fine when I put it it the body section of my HTML. But when I move it to the head, the script no longer works. The div where the images are supposed to appear remains blank. Does this matter? Does this mean that there's a flaw in my script? Should I be worried? Or should I simply leave the script where it is in the body section.
Here's the crossfade slideshow script:
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Mar 18, 2010
my browser is not able to access the javascript of css file from the location. Its saying What might be the reasons
<p>
The requested URL was not found on this server.
If you entered the URL manually please check your
spelling and try again.
</p>
I dont understand y.
1> The files are correct and in the location . The alphabets are also of correct case, since its a linux system.
2> I tried to reload the page using shift + contrl + R
3> tried to clear the cache from the browser.
Only doubt i have is that , the path is a relative path. samething like -script=>{-language=>'JAVASCRIPT',-src=>'../pickdate.js'}
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Jan 21, 2011
I'm having trouble accessing a custom property that I've created for an object. Does anyone see the problem with this code? this.imageSrcs is undefined inside of getImages.
Quote:
Gallery.prototype.imageSrcs = new Array();
Gallery.prototype.getImages = function(json) {
if (json) {
[code]...
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Jan 10, 2007
Does anyone know of a way to insert new css code into the page head with javascript after the page has loaded? So that the html and dom are still correct?
insertAdjacentHTML or innerHTML are not very good solutions I guess... Nor document.write. Could it be done with appendChild?
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Jan 26, 2001
Why does some javascript have to be in the head tag and some don't? I want to be able a pop up with a cookie without having to have code in the head tag AND a call in the body tag (to pop up onload). Is there a way where I can stick everything in the body tag?
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Dec 23, 2010
I have a very simple setup with an IFrame code...
The first alert works just like it should, but the second doesn't appear (and all further execution stops). There is no single property or element of the contentDocument i can reach. Can anyone help me to figure out the problem?
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Nov 23, 2005
I have been trying to load a javascript function from the body onload
html tag, but I only want the function to load the first time the page
is loaded: I have investigated but haven't found anything that works..
I thought about cookies, but what if the user's disable them?
My code:
//I want to call the Toggle function below only on the 1st time the
page is loaded:
<script language="javascript">
function Toggle(item) {
obj=document.getElementById(item);
visible=(obj.style.display!="none")
key=document.getElementById("x" + item);
if (visible) {
obj.style.display="none";
} else {
obj.style.display="block";
}
}
function Expand() {
divs=document.getElementsByTagName("DIV");
for (i=0;i<divs.length;i++) {
divs[i].style.display="block";
key=document.getElementById("x" + divs[i].id);
key.innerHTML="<img src='textfolder.gif' width=ï ' height=ཕ'
hspace=Ɔ' vspace=Ɔ' border=Ɔ'>";
}
}
function Collapse() {
divs=document.getElementsByTagName("DIV");
for (i=0;i<divs.length;i++) {
divs[i].style.display="none";
key=document.getElementById("x" + divs[i].id);
key.innerHTML="<img src='Button1_01_over.gif' width=ðC'
height=ཡ' hspace=Ɔ' vspace=Ɔ' border=Ɔ'>";
}
}
</script>
// C# code I inserted above the body tag on my aspx page:
function handler()
{
if(<%=!Page.IsPostBack%> )
{
Toggle('support');
}
}
//The body tag with handler being called:
<body onload="handler()">
FYI: The Toggle('suport); function is not being executed. If i put the
function in the <body onload tag.. it does run..
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Jun 30, 2010
I'm pulling data from a database using a RESTlet server, and using Flot to produce a graph.
My problem is that whenever I make the following AJAX call, I get an "Access to restricted URI denied" error on Firefox. On Internet Explorer I have other problems, but I can tell by my server logs that at least the AJAX call happens, which is more than I can say for Firefox. code...
The url is correct, and the server is hosted on this machine, but Firefox thinks it's trying access another domain. The html file containing this code is located on my hard drive.
How can I get Firefox to allow this AJAX call?
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Feb 24, 2011
I would like to be able to access the raw CSS code that has been loaded for the specific page. I'm not looking to change the code (I know how to use jQuery for CSS manipulation etc...) I just want to parse through it and extract some useful information.I considered just loading the stylesheet references in the page, then placing a request to the server for the .css file, but this feels messy even if the browser happens to have the page cached from having just requested it.Has anyone got a clue as to how one would go about this? As always, I think its best if it uses jQuery XD, however, I just really want to get this done
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Aug 20, 2010
I'm very new to jQuery and registered a new account on the website yesterday. I can log in using my account details OK, but when I try to use the Plugins section of the site I get :- Access denied You are not authorized to access this page.
If I try to search for a pluging, I get
Validation error, please try again. If this error persists, please contact the site administrator.
I can't find a FAQ section in the forums, or any link on the site to contact the website admins, so I'm hoping someone here may be able to help, or at least point me in the direction of someone who can.
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Nov 4, 2006
Okay you know how you can do something like...
window.onload=function(){myFunction();}
in order to contain all you javascript in the head of your document??
Well why can't I seem to do...
document.getelementbyid('MyElement').onclick=function(){myFunction();}
??
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Jul 26, 2009
I have a javascript function in the head of my page. I'd like to run it immediately, before page loads.I tried just doing
Code:
<script>
successpanel();
</script>
in the head right after it, but it doesn't work.
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Dec 16, 2011
I know this can be done with media-queries in CSS3, After attaching the jQuery library, I used js to get the width of the window browser-viewport) and store that in a variable.
What I was aiming to do was write a <title></title> for the page and attach a stylesheet through <link /> using js only when the window's height was greater than 596px. So, I wrote the following:
Code HTML4Strict:
<!Doctype HTML>
<html lang="en">
<head>
<script type="text/javascript" src="../assets/js/jquery-1.5.1.min.js"></script>
[Code]....
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Apr 13, 2010
Can we NOT place JQuery ready function in head section ? is it possible ? We put it into html body, and then use some function to scan ..
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Oct 24, 2010
How do I put this onclick function code...
into the head of my page so I can call it from several similarly situated links?
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Jul 23, 2005
Although I am able to drag and drop HTML links, I am no longer able to drag
Javascript links.
In the past, I have been able to drag a link from such places as the
TinyURL! link on http://tinyurl.com to my Links Toolbar. Now I can't. When
I try to drag any Javascript link, my cursor does not change the same way it
does for an HTML link. I see a hand icon for both link types. When I try
to drag a Javascript link, it changes from a hand to an arrow as soon as I
pull the cursor away from the link.
Is this problem new to WinXP SP2? Has one of my settings changed? Has
Norton Internet Security become more actively involved?
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May 30, 2007
I don't know the problem with IE6. I have tried three methods, and
they all failed. I eliminated the use of mootools' framework in method
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not showing up. I have checked that with IE developper toolbar. Code:
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May 8, 2007
The main page of the site has this script which determines the
language settings of the OS. This works fine for IE but not for
firefox. Is there any other codes which i have to insert to make sure
Firefox would be able to load it?
<script type="text/javascript">
function detectlang()
{
var lang=navigator.userLanguage
var langs=navigator.systemLanguage
var langb=navigator.browserLanguage
if
((langs=="ar-sa"||lang=="ar-sa"||langb=="ar-sa"))
{window.location.reload("http://www.flynas.com/ara/index.html")}
else
{window.location.reload("http://www.flynas.com/eng/index.html")}
}
</script>
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Jul 11, 2004
I have a javascript variable containing the return value from a call to showModalDialog(...)
var rval = showModalDialog(...)
I can display the contents of rval using alert or in an iframe, so I know it isn't null, but I want to save it to a mysql database using php.
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Feb 19, 2009
I have a poorly designed third-party API that I'm working with, and I need to, essentially, pull the anonymous function assigned to an onClick event and put it into another function where I can then add its body, another function call, and then reassign the onClick. I've found toSource on MDC , which looked promising, but it doesn't seem to work correctly or, more likely, I'm not using it right. But, also, it's labeled as non-standard, which isn't where I'd like to go, as this is for a public, production site.
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Jul 18, 2010
The only way I know to make a script automatically run on the page is by using the "onLoad" property of the HTML body tag. However, I'm working with a template that serves the same header and footer for every page on my site, and this JavaScript is only needed on a single page. I therefore don't really want to edit the body tag with a function call that won't be needed in most cases.
To avoid doing this, is there any other way to make a piece of JavaScript run without input from the user? All I want to do is autofocus on a form field.
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