Designing In Javascript

Mar 31, 2004

I'm a web designer who designs in shtml, html using css. however, I have been asked to assist in designing a site using java for server-side and oracle database etc.

My task is to design the static part of the site ie navigation, look and feel, etc etc. and build this. The database is being completed elsewhere.

I understand that I'd need to make all pages .js extension and that I'd need to use .js includes. Is there a step by step process I need to follow AND are there any other things I need to think about before I go ahead and set the pages up, ie DOM, writing .js include into "where" in the html page, scripts for javascript if need be etc?

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Designing File Upload In FF

Nov 24, 2006

Could anybody explain why does the following code :

<form name="upload" method="post">
<input type="file" name="file_1" style="display:none" />
<input type="text" name="text_1" />
<a
href="javascript:document.forms['upload'].elements['file_1'].click();">
Open
</a>
</form>

open the file dialog for selecting a file for upload in the Internet
Explorer, whereas in the FF 2.0 does not?

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Jul 14, 2009

I know very little about jQuery. I am trying to design a graphic menu bar that is capable of displaying each button in 4 modes: up (neutral), hover, down (mouse down), and selected. After some research, I was able to "come up" (by cutting and pasting and burning up a couple of neurons) with the code below. It works well enough but I'm sure it could be written a lot better. What I really would like to do is to change whatever button is "down" to go back "up" once another button is pushed, changing the img src, or by whatever method is more efficient.

<script src="js/jquery-1.3.2.js" type="text/javascript"
charset="utf-8"></script>
<script type="text/javascript" charset="utf-8">
$(function() { // image rollover
$(".topmenu img").hover(function() {
this.src = this.src.replace("-up","-hover");
}, function() {
this.src = this.src.replace("-hover","-up"); .....

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Dynamically Writing Html/javascript From A Javascript Function

Jul 23, 2005

I'm working on some code and am running into brick walls. I'm trying
to write out Javascript with Javascript and I've read the clj Meta FAQ
and didn't see the answer, read many similar posts (with no luck
though), and searched through the IRT.ORG Faqs
(www.irt.org/script/script.htm).

The Javascript is designed to open an popup window and then inside that
window call another script which will resize that window. There may be
another way around this but the reason I tried this approach initially
was that I wanted to call the onload handler in the popup window to
resize the image only after the image had completely loaded. I've had
some code in the primary Javascript file (showimage.js) before that
works if the image has been cached but on the first load, it doesn't
resize properly which tells me it is probably because it is trying to
resize the window based on the image size but it isn't completely known
at that point. So I removed that code and tried placing the resizing
code in the second Javascript file (resizewindow.js). BTW I've tried
other code to open a popup image and automatically size it ie Q1443 at
irt.org but that doesn't do exactly what we need.

Even if there is another way to do this with one file, I still want to
figure out why this isn't working in case I run into it in the future.

I thought what I would need to do to use document.writeln to write
Javascript would be to escape any special characters and to break
apart the script tag ie

document.writeln('</SCRIPT>');

would become

document.writeln('</SCR' + 'IPT>');

I have a HTML page and 2 Javascript files. All files are in the same
directory and have permissions set correctly.

Here are the 3 files (keep in mind wordwrap has jacked up the
formatting):

index.html
----------
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Test</title>
<SCRIPT type="text/javascript" LANGUAGE="JavaScript1.1"
SRC="showimage.js">
</SCRIPT>
</head>

<body>
Click the house<BR>
<A ONCLICK="newWindow1('house1.jpg','Nice House')"><IMG
SRC="house1thumb.jpg"></A>
</body>
</html>


showimage.js
------------
function newWindow1(pic,sitename)
{

picWindow=window.open('','','width=25,height=25,sc rollbars=1,resizable=1');
picWindow.document.writeln('<html> <head>');
picWindow.document.writeln('<SCR' + 'IPT type="text/javascript"
LANGUAGE="JavaScript1.1" SRC="resizewindow.js"></SCR' + 'IPT>');
picWindow.document.writeln('</head>');
picWindow.document.writeln('<body onload="resizewindow();">');
picWindow.document.writeln('<img src=' + pic + '>');
picWindow.document.writeln('</body> </html>');
picWindow.document.close();
}

resizewindow.js
---------------
function resizewindow()
{
// Do resizing here.
// Right now this isn't being executed
alert("resizing window");
}


Can anyone provide some pointers as to why this javascript is failing?
I'm using IE6 on Win2k and when I click on the image to open the popup
window, it does open the window but it is white with no content and the
system immediately goes from about 4% CPU usage to 100% and
consistently stays there until I kill that window with the task
manager.

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Jul 23, 2005

Attached is a simple HTML file that adds and delete rows. In the add
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however on IE it just refuses to work.

What is interseting is the ROW that already exists has a similar
'onClick' event which works when the page is loaded, but subsequent
"row" additions to the table to not work in IE. Code:

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Feb 19, 2007

two possibilities or the attribute type of script:

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what are the differencies between both?

depends on the html content?

for example html 4.0.1 versus xhtml 1.1?

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Javascript Function Has No Properties In Javascript Console

May 25, 2005

I'm getting errors in Firefox everytime I try to run this frame resize code, but it works fine in IE. I can't seem to figure out what the problem is with it.

The error is: Error: theFrame has no properties
Line: 8

The line that the javascript console is showing an error for is in italics.

code from page:

<html>
<head>
<script type="text/javascript">
var defaultCols="100px,*";
var hiddenCols="0px,*";
function ShowHideMenu(){
theFrame = document.getElementById("framed");
if(theFrame.cols == defaultCols) theFrame.cols=hiddenCols;
else theFrame.cols=defaultCols;
}
</script>
<frameset cols="100px,*" name="framed">
<frame src="lframe.htm" name="frameMenu">
<frame src="mframe.htm" name="content">
</frameset>
</head>
<body>
</body></html>

Come someone let me know what I'm doing wrong here?

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Mar 30, 2006

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1. Sitepoint's "The JavaScript Anthology: 101 Essential Tips, Tricks & Hacks".
2. Worx's "Professional JavaScript for Web Developers (Wrox Professional Guides)"

Both seems to cover very insteresting topics, but i can only buy one of them. So which one do you suggest?

and by the way, i've read the sample chapter 5 of Sitepoint's book, and it seems like the author(s) just put the solutions/codes there and let you figure them out on your own. Is this how the rest of the chapters are?

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Jul 23, 2005

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Hopefully, the problem can be solved without recreating a complete
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Apr 28, 2006

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Why?
-Because 90% of the time in my newer sites, javascript ads are the major offender in terms of speed of page rendering

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My 1st solution:
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Is this even possible? How would you go about it?
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<SCRIPT language=JavaScript>
<!--
function openpic(pic_name) {
myWin= open("", "displayWindow", "width=640,height=510,status=no,toolbar=no,
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myWin.document.close();
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//-->
</SCRIPT>

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Example code...

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