Scripts In Head Or At End Of Document?
Mar 5, 2010
my initial understanding is that it's better to link to external scripts in the head of the document rather than at the end of the document. There are hassles with <head> links, though, such as having to prevent the script running until the page is loaded.
Often I see scripts linked near the end of the <body> section, which seems to have some advantages.
Would anyone be interested in listing / discussing the pros and cons of both approaches? Is linking to scripts at the bottom of the <body> a bad thing? I'm interested in this not only from a convenience point of view but also from a best-practice angle.
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Sep 14, 2011
I am trying to write some innerhtml into my head tags, I have managed to get it to work in chrome however I cant get the damn thing working in IE. here is the code im using:
Code:
document.getElementsByTagName('head').item[0].innerHTML = document.getElementsByTagName("head")[0].innerHTML+'<style type="text/css"> BODY { margin: 0 auto; background-position: top center; background-repeat: no-repeat; background-color: #ffffff; font-family: Arial, Helvetica, sans-serif; font-size:
[Code].....
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Oct 6, 2010
[URL] I'm using a single line in the HEAD section
Code JavaScript:
<script type="text/javascript">document.getElementById('customcss').href = "css/base.css";</script>
to load a CSS file should the browser not be JS capable. Only in IE 7 will this not render and I'm going bonkers trying to figure it out. After searching a bit I ensured no ID and NAMEs were similar and I don't think it's a hasLayout bug.
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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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May 10, 2006
i've been reading up on access to the dom via js (i'm new to this dom
stuff)
i understand tutorials and info such as
http://developer.mozilla.org/en/doc...t.createElement
my problem: i'd like js to create the code for a stylesheet in the head
of the docuement!
i'm not sure how do do this (or if it can be done)
can i create the following...
<link rel="stylesheet" type="text/css"
href="mystyle.css" />
OR
<style type="text/css">
hr {color: sienna}
p {margin-left: 20px}
body {background-image: url("images/back40.gif")}
</style>
using the dom or anything else in js alone?...or am i fighting a losing
battle.
(what i really want at the end of the day is to detect the browser and
use a css file according to that file, either with js or php)...
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Jan 27, 2011
im tring to add this tag : <base target="_self" /> to the head it's not working (im working on explorer) i tried :
$(
'<base target="_self" />').appendTo($('HEAD')); and
$('HEAD').append('<base target="_self" />')
how can i do it?
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Mar 11, 2009
[URL]
That didnt work The code is added to the oScript element but thats it. I have tried another script from here:
[URL]
I want to add a meta tag from the body tag and it worked using Jscript
This worked only on my local but not on hoster:
HtmlMeta GoogleVerify = new HtmlMeta();
GoogleVerify.Name = "verify-v1";
GoogleVerify.Content = "681rsArfYmoRz88BIT8ZVDeLk4b6VMEn1+StcF61iwY=";
HtmlHead head = (HtmlHead)Page.Header;
head.Controls.Add(GoogleVerify);
And on the hoster theres a scripting error as well why innerHTML doest work?
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Sep 4, 2009
Is there a way to load up an external JS file outside of the head tag? I've got an "AJAX" web app that's loading several pages simply by changing the innerHTML property of a single div. The JS source is getting to be rather large, so I'd like to split it up into manageable, organized portions. Is there some way to, using javascript or PHP, load another javascript into the browser dynamically?
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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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Aug 23, 2003
I need to make an automatic popup window for my site but i dont want to place any code in the <HEAD></HEAD> tags. Is this even possible?
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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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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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May 11, 2011
Is it absolutely necessary to put the JavaScript code in the HEAD? I have a lot of JavaScript code in the BODY and they all appears to be working just fine. What is the downside of putting JavaScript code in the BODY? What can go wrong?
Sometimes you can not avoid putting JavaScript code in the BODY. Like for instance, when you provide your members with a HTML code for a poll and the code has JavaScript in it.
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Jul 26, 2006
I am attempting to add a style tag (and some styles) within the head tag. I have attempted this using two methods and both failed in IE (InnerHTML and appendChild). The append child method i tried looks likeCode:
function addStyles(styles) {
var newStyleTag = document.createElement('style');
newStyleTag.setAttribute('id', 'extraStyle');
var head = document.getElementsByTagName('head')[0];
head.appendChild(newStyleTag);
var oStyles = document.createTextNode(styles);
document.getElementById('extraStyle').appendChild(oStyles);
}
So i am basically just Creating the style tag and giving it an idappending the style tag to the headCreating a new text node and appending it to the style tag It is failing on the last append child. The inner HTML method was failing on about the same part.
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Oct 11, 2007
I have a website running in .net, that has a load of these in the <head section of the default.aspx page, which bumps the page size up to 371kb. However, many of these are only used
in one 'skin', or page in the system. Is there any way I can put these scripts elsewhere, so they are only loaded when they are needed. Then every webpage will not have to be so enormous?
This is the sort of thing I am talking about:
<script type="text/javascript" src="<%= Page.ResolveUrl("js/swfobject.js") %>"></script> ....
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Jan 21, 2010
So for a site I maintain,InsideCCS, I have the following code for dynamically inserting stylesheets on a page:
var newCSS = [];
$.each(options.styles, function(index) {
newCSS.push('<link href="/styles/'+options.styles[index]['href']+'" media="screen" rel="stylesheet" type="text/css" class="dynamic_css" />');
[Code]......
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Mar 23, 2011
I am not able to re-open a ticket, and I can't find the contact information of somebody to do it for me.I'd like to re-openTicket #7522, since I am again able to reproduce it in 1.5.1. Is there an easy way to do this?edit: I changed the title, since the content of the topic is going in the direction of tickets #7522, #5819, #8607 and #8574.
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Jan 20, 2011
I have a javascript where I check to see what the last 4 characters are of the URL I am on and if they are html I want to set a:
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Oct 5, 2009
I'm trying to set up an image's source from a function within the document's head, but to no avail. The code is something like this:
<head>
.....js code.....
function updatePieChart()
{
document.pie_chart.src = "piechart.php?p1&p2"; // php-generated image, with parameters
}
[Code]...
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Nov 11, 2011
Is there a reason why this code won't execute properly? It's not printing out the contents that I have put in the head section.
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Apr 27, 2011
I'm nothing with javascript but often use code from [URL]to complete projects. The problem at present is that I need two functions to run on a single page, and it keeps throwing errors and not working.One is for an navigation rotator, the other is for a twitter feed.
Code:
<!-- jquery for twitter links -->
<script type="text/javascript"
[code]....
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Nov 21, 2011
I'm building a shopping website, in which there's a select where the user select which products to show. beneath the select, there should be a label of the product followed by a table written at runtime of the result. My problem is is the title so far, the designer gave me the prototype with a static title within a span, when i try to call the function to change the heading, it's written in a new blank page not within the same place.
Here's the code so far:
HTML Code:
I was thinking that it's because of document.write and it's how it works, but i don't know how to write to the same document in the same place of the script.
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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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Dec 20, 2005
Having HEAD section like that:
<head>
<title>Foo</title>
<meta http-equiv="Content-Type"
content="text/html; charset=iso-8859-1">
<link
title="linkObject"
rel="Alternate Appendix"
type="text/plain"
href="data.txt"
charset="iso-8859-1"
hreflang="en-US">
</head>
what would be the most realible way to get "linkObject" reference?
var roof = document.getElementsByTagName('HEAD')[0];
// ?
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Sep 13, 2007
I've been asked to pack a very simple javascript function that resides
in the <headsection of a page. I have the function working the way I
want, but when I pack it using this packer:
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Jun 26, 2010
What i'm currently trying to do is find all columns associated with a table header.
For example:
<table id="thetable">
<thead>
<tr><th colspan="2">Column 1 header</th></tr>
</thead>
[Code].....
I would be really happy if when something like this would be possible:
var jqTh = $( '#thetable thead th:eq(0)' )
jqTh.getTBodyColumns( ).toggle( ); // Get all cells for first th and hide them
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