JavaScript General Question

Oct 16, 2007

I was wondering how can i make a javascript code but make sure users can not disable it. ie. is there a way i can have a javascript code executed on the webpage even if the user has javascript disablled in their browser?

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JavaScript As A General Purpose Programming Language?

Jul 20, 2005

I must admit that the more I use and learn JavaScript, the more
convinced I am that it is one of the most expressive languages I know.

Without ways to access file i/o or databases though, can JavaScript be
considered as a serious general purpose language?

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Moving A General DIV ?

Sep 24, 2009

How do I go about moving a general DIV with Javascript?

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General Use Of Java.io.File

Jul 20, 2005

I'm writing this routine that calls the length() member of
java.io.File. Is this object generally available in most mainstream
browsers, or do some of them lock it down?

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General Info On Site Design

Jul 23, 2005

Just wondering what the current size standard is for web-page design ... it used to be 800 x 600 pxls (which seems quite small these days).

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Radio Button Validation - General Function ?

Sep 22, 2011

I'm getting into javascript coding and i'm stumped with some problem about radio buttons. What I would like is to have a general function where I can pass in any group of radio buttons and have it return the textual value of the radio button selected.

First, here is my code so far.

Now here's a sample form:

My question is, when i run this function and pass it in the group of radio buttons by means of the onclick event handler, firefox 3.6.22 reports in the error console on line 22 that "options[index] is undefined". It seems that if i use the variable "index" more than one time it reports this error but if I take out the assignment to variable "choice" that it works just fine.

I rewrote the function using a separate variable and this time it works perfectly:

Notice the indexing variables in the "if" statement and the assignment to "choice" are different.

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General Random Image Generator For 6 Images?

Sep 24, 2011

including links to an image folder, for displaying 6 fullscreen images in random order without repeat for a given user?I've seen specific examples using shuffle on the site, but could anyone write a general code for any given images?

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General - Can't Preserve Input Field After Refresh

Apr 5, 2010

On load, if a select box as the option X selected, display a specific input field.This works, because, after the validation, I go back to the previous page, and the input field is there.However, if someone selects the option X of the selectbox, the input field appears, BUT, if a refresh is made, we lost that input field.I understand this is a normal behavior since, we are on a client-side language, hence it should forget the previous state, but, what is the common workaround for dealing with this, in order to "preserve" the input field after refresh?

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JQuery :: Validate Plugin - Localize My Validation Plugin In General ?

May 26, 2009

I need to localize my validation plugin in general. Hence I thought I have to override the default code with this one:

But it's not working. Another problem is, that I can't access input names like this > name="xyz[1]" Is there a way to do so?

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2nd Iteration Doesn't Update - General Case Doesn't Work

May 10, 2010

This is a makeshift sort function for a table. I want to replace a div contents with a javascript function call. It works fine if I define the individual case, but the general case doesn't work. The problem lies with the +divHold+ part. It never converges to the passed value on the 2nd iteration. This is my Div:

[Code]...

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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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DOM Javascript - Imbed Javascript In Dynamically Added Row

Jul 23, 2005

Attached is a simple HTML file that adds and delete rows. In the add
row function I set an attribute "onClick" this triggers the
testMessage() function. When I try this in Firefox it works just fine
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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Text/javascript, Application/x-javascript, Difference?

Feb 19, 2007

two possibilities or the attribute type of script:

text/javascript (the one i usually use) application/x-javascript

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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'Javascript Anthology' Or 'Professional Javascript For Web Developers'?

Mar 30, 2006

I'm already past the basics of Javascript, and i need something that takes me to the other level and teaches me the new technologies and cool stuff (drag&drop, AJAX, OOP in javascript, maybe XUL...etc). So far i found these two books:

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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Nixing Javascript Via Javascript: Pseudoproto?

Jul 23, 2005

This is a question about defensive web browsing. Ocassionally I run into a page whose JavaScript does something that I find obnoxious. I would like to turn off JavaScript only for that page (instead of disabling it globally). It would be cool if there were some way to do this through a "bookmarkable" JavaScript snippet using the javascript: pseudoprotocol. Does anyone know any trick to do any of this?

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Extract Links From Javascript (not Using Javascript)?

May 26, 2006

I am looking for a method to extract the links embedded within the
Javascript in a web page: an ActiveX component, or example code in
C++/Pascal/etc. I am looking for a general solution, not one tailored
to a particular page/script.

Hopefully, the problem can be solved without recreating a complete
Javascript interpreter. Any ideas?

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Turn A Javascript Into A Javascript Function?

Oct 21, 2005

I have some javascript that I have written into the <body> section and it works great. But I would like to make it into a javascript function and define the function in the <head> section. Then in the <body> section write a small bit of javascript that would call the function() object. Code:

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How To Insert Javascript Code Within Javascript?

Jan 7, 2006

I would like to know how to write javascript such that, a part of it isnt considered as script, & rather as HTML. Code:

Ok, the layer div can be written using document.write. But, Google ad itself is a javascript isnt it. How can it be written into this? How does this work?

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AJAX, Eval(), And Javascript Within Javascript

Apr 28, 2006

Ok so, this is my purpose:
- to be able to load asynchronously (via AJAX) some javascript ads (like google's or adbrite) so as to make them be loaded in the background, then update the page after the ads have loaded via innerHTML

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

My problem:
Via ajax, I can call a php file that retrieves some javascript and outputs it, XMLhttprequest returns those javascript lines, but they don't render in the page, since they miss the whole page loading, and are apparently not parsed
For example, let's say I call a php file via ajax, and it returns the output into a variable named "text" containing "document.write('hello')"
if I use xxx.innerHTML=text, nothing happens

My 1st solution:
Passing those javascript lines to eval() [like eval(text) ], but this produces a second problem, that I couldn't solve (probably because of my lack of knowledge in javascipt):
if I eval the code, it deletes my current page and renders a new one
for example, if I parse a document.write, my page disappears, and a new one is rendered with the document.write text

What I want is basically to make that "document.write" appear inside a div in my page, adding to the content (and not overwriting the whole page), much like what happens when using innerHTML

Is this even possible? How would you go about it?
I tried xxx.innerHTML=eval(outputfromphpfile) but it overwrites my whole page...

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JavaScript Withing JavaScript ?

Nov 26, 2000

Just a quickie: is it possible to place javascript within javascript? The following is the code I am using to create a pop-up for a picture gallery. I would like to place a banner from a banner exchange in bold under each photo. When I use the code below I get an error message:

<SCRIPT language=JavaScript>
<!--
function openpic(pic_name) {
myWin= open("", "displayWindow", "width=640,height=510,status=no,toolbar=no,
menubar=no,scrollbars=yes,resizable=yes,alwaysraised=yes");

myWin.document.open();
myWin.document.write("<html><head><title>" + pic_name + "</title>");
myWin.document.write("</head><BODY><center><TABLE CELLPADDING=&#390;' CELLSPACING=&#390;' WIDTH=òr'>");
myWin.document.write("<br><img src=kate/image"+ pic_name + ".jpg><br>");
myWin.document.write("<br><br><BR><br><BR><br><BR>");
myWin.document.write("<script language='javascript' type='text/javascript' src='http://www.linkbuddies.com/ad.go?id=134039+2&n=3'></script>");

myWin.document.write("</center></body></html>");

myWin.document.close();
}

//-->
</SCRIPT>

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Javascript Inside Javascript

Dec 12, 2005

Basically, on one of my sites I'm running adsense and today I added Chitika. The problem is, I can't run those type of ads through my banner advertising program.

The banner advertising program calls the banners/HTML from code like this:

<script language=JavaScript src=http://www.mysite.com/advertise/abm.asp?z=1></script>

And using that program I'm able to either choose a banner or HTML I want to display when that code above is used. It displays HTML ok... but when I try to run an ad of either adsense or chitika nothing displays on the page. The code that would be called is:

<script type="text/javascript"><!--
*Chicika code in here*
//--></script>
<script src="http://xxx/xxx/mm.js" type="text/javascript">
</script>

So... it looks like I can't have javascript call another javascript to display on a page. My question is then... how can I edit the above to make it work or how can I work around this problem? I'd really want this to work with Chitika and not so much with adsense... but it appears both Chitika and Adsense use similar javascript code.

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Include Javascript File In Another Javascript File

Jul 26, 2006

is it possible to use functions from javascript file A.js in javascript file B.js?

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ASP Within Javascript

Jul 23, 2005

How can I pull this ASP var into javascript?
What is wrong with this statement?

<%
todaysdate = (now)
response.write (todaysdate)
%>
<script language="JavaScript"><!--
var date = new Date();
var aspdate = <%=todaysdate %>
document.write(aspdate);
//--></script>

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Javascript V ASP

Jul 23, 2005

does a client side script always need a server side script in order to
function?

how can i get my javascript application to send the details of a user
filled form to me without having to have a server side script?

if i have both server side and client side script in a web
application, will the resulting application run as a client or server?

i know i probably haven't made much sense, but the problem is that i'm
trying to make sense of it all.

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Javascript Ide

Jul 23, 2005

I'm looking for javascript IDE with code completition and preferably script debuging. Cross platform (Windows, Linux) would be a plus.

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