Add External Js File On Client Webpage And Leave Window.onload Function Unaffected?

Jan 15, 2009

Theres this situation where i have to place a js file (say myscript.js) on a client's website to do something on their page (like create a div element with some content in it). Now, myscript.js works when window or DOM has loaded. The problem is that the client will/may also have onload functions which will be overridden by myscript.js if i place it at the end of the page or vice versa if at the top of the page.

Theres one (albeit obstrusive) way in which it can be done. Create multiple onload function (Simon Willison's script) within myscript.js and call that function from the client's webpage.But i dont want to add any inline javascript code on the webpage. Just the external js (myscript.js) file should do. Is it workable to load my script externally and not add any inline call to myscript.js as well as leave the client's javascript onload scripts unaffected?

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Jan 13, 2006

I work for a small college and we were recently given permission to use a particular GPA calculator on their website. They sent us a javascript file, that I now have. I am trying to incorporate this into our website, but I don't really know much about javascript and I am having trouble making it work.

You can view the GPA calculator here to help clarify what I mean... If someone could just help point me in the right direction or if anyone know a site with tips that would be helpful to me..

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This is what I have so far: Script.js page - This page is longer but this is the relevant part that I would like to wrap:

$(".product img").draggable({
containment: 'document',
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[code]....

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<a href="page2.htm" onclick="theWindowIHaveOpened.onload = function(){alert('loaded')}">...

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Apr 20, 2010

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Jan 17, 2005

I have a popup window that resizes when open:

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}
</script>
<body

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Sep 30, 2010

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[Code]...

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Aug 18, 2011

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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[Code]...

How can I still use the parameter "openAccordionID" in the blue-highlighted part? I tried, but it failed.

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May 11, 2009

I'm trying to use unobtrusive javascript for a page I am building. I want to insert a "bookmark me" item into the page. This is the script I am using:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "[URL]">
<html xmlns="[URL]" xml:lang="en" lang="en">
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<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
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<script type="text/javascript">
<!--
function add_favorite() {
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} window.onload=add_favorite();
-->
</script></head><body>
<div id="wrapper">
<div id="header">
<h1>Heading goes here...</h1>
<div id="bookmark">
</div></div>
<div id="main">
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</div><div id="footer">
Footer goes here...
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It's pretty simple stuff that just populates an empty div with an image link to bookmark the page when users have javascript enabled. Now when I call the function using <body onload="add_favorite();"> and cancel out the window.onload=add_favorite(); from the script it works just fine (it throws a line-1 syntax error up in IE that I can't figure out, but functionally everything still works in IE7 and FF2). When I try to do it the "unobtrusive" way I get nothing at all in either browser.

A little debugging revealed that the function is indeed being called and is running successfully, however the function is somehow unable to locate the element with ID of "bookmark" when it is fired with window.onload and as a result I get no bookmarking link. It's almost like window.onload is triggering itself too soon, before the div of "bookmark" is in the page, but how can that be?

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Sep 15, 2010

I'm trying to execute a function in an external js file. I have the file linked

Code:

script type="text/javascript" scr="./JScript/JSFile.js" language="javascript"></script>

In my form the action points to the JSfile

Code:

action="JSFile.js"

My submission button has a link to the JS function

Code:

<a hef="javascript: function()"><input type="submit"></a>

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Sep 28, 2009

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In .js file,
<script type="text/javascript">
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[code]....

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Mar 3, 2009

Below is a sample HTML code for including a javascript file.

Code HTML4Strict:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

[code]....

When i browse this test html page on Firefox, the alert message is displayed as on the code above. But on IE, the page shows no such alert message.I assume this is a problem with the functions on the external js file not being recognised in IE.

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Code:

// JavaScript Document
function setQty(id)
{

[code]....

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Code:
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[Code]...

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[Code]....

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Oct 29, 2009

The following javascript loads after the page loads. Is there a way to change this onload function and make it work as the page is loading?The javascript is meant for mousewheel scrolling for a horizontal website. The website I am using this for has a fixed width - 29000px

Code:
*/

window.onload = function() {
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Jan 3, 2012

I would like to know how to create a function in an external file for validating the fields of a form. If someone could please provide the code, it'll be real helpful. The form is as follows:

<form name="contactus" action="" method="get" id="form">
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Feb 9, 2009

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<head>
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[Code]...

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Dec 3, 2005

I wander what gets loaded the fastest (1-2 or 3) in what succession:

<head>
<script type="text/javascript">
function andAction() {
// doing stuff
}
</script>
</head>

<body onload="andAction();">
<script type="text/javascript">andAction()</script></body>

just in the head and nothing more

This I am sure off:

<head>
<script type="text/javascript">
window.onload = function andAction() {
// doing stuff
}
</script>
</head>
<script type="text/javascript">andAction()</script></body>

just in the head and nothing more (should be 1)

Third and last which is faster:

body onload or window.onload

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the page have been rendered. As the difference is consistent across
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1. Malicious user trying to collapse the website sending big files.

2. Users that have not seen the warning “Maximum size: 100 KB&#65533; for each image, and try to send three image files consisting in 1,5 MB each one. These users will have a bad experience waiting one hour or more to upload the images, and after that receive an alert saying “Oooops! Your image files are too big.&#65533; And also, web server will waste an important amount of resources. The same case with 100 users at the same time can be a nightmare!


I have been searching a way to check the file size on client side without having to force user to install anything, but I think that there isn’ t nothing to do with javascript. But I found an interesting PHP article that explains a way to do it with this server side language. The technique consists in:

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