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.
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?
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.
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.
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?
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.
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:
I'm using ajax to display the xml file. On my html i put <body onload="sendRequest(Display)">
so everytime users go to the main.html, all the information in xml will be displayed after transformed by XSL Now the problem is it gets the error Display is not defined While i did define it in js file this is what I do in js;
I have dynamically named form elements set in divs based on a server-side language. I am displaying these using DHTML in a display:none, display:block format.
Due to some code (and deadline) issues I do not have the total number of form elements set by the time the body tag is run. I wanted to have a script tag later on in the document which reads something like:
However the JavaScript code does not run. Alerts run inside the code consistently, but the other code does change the display to block. also tried running this same code as on OnFocus...
I am using the following code to add a keyup event listener to the body tag. It works fine in Webkit and Chrome but FF and IE just do nothing. The event never fires. However, no javascript errors occur in any browser.
here is the code:
Code:
var Body = new Object(); Body.trackKeys = function (target){ if( document.getElementsByTagName("BODY")[0].addEventListener ) {
Through an onClick() event, I have an inline function to change the font size of the page (actually, I need to do this for the entire website). I have this defined in the header.cfm file as:
onclick="document.body.style.fontSize=཮%'"
This does not work at all for some reason. Whereas,
Is javascript works in mailbody? i mean admin sends registration form through email to new users. for that registration form validation javascript is not working.
I'm trying to make my body content scroll at the same time as an iframe located within the body. This has to do with the age old problem of mouse focus on iframes. When my mouse reaches the iframe and it takes over focus, I would like the body to keep scrolling until the iframe is right at the top of the screen. After that I want to relinquish focus to the iframe. I don't mind if the iframe starts scrolling as soon as the mouse reaches it, so long as the main body keeps scrolling for a while.
It's possible to style document.body not to start at 0,0 for example: body {width: 1000px; margin-left: auto; margin-right: auto;} This means that X/Y of the body is not 0,0 but how can I find out what the position is using javascript? document.body.offsetLeft; is 0 and offsetParent is null yet if I position something absolutely at 0,0 it goes to 0,0 of the window, not the body!
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?
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?
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?
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.
