Webmaster Forum / HTML, CSS, Scripts / JavaScript / March 2005

Is it possible for an image to SHRINK (both height and width, keeping same
h/w ratio) when the browser's width is reduced? It's easy to have both h & w
increase, as needed, to fill up 100% of the <td>, but I don't see how to
have the image shrink.

Can someone help me out?
I'm looking for a regular expression that inserts a space
into a string after every fourth byte (except the last).
Specifically, this is to display credit card numbers.

I have some code that checks to see if a document object exists in a
sibling frame before continuing processing like:
if (parent.frames[4].document){
...

I have this problem : when I submit a Form with the usual
<html:form name="myForm" action="/myAction"
  type="org.apache.struts.validator.DynaValidatorActionForm">
.....

Is there a way, besides writing another method, to make
Date.setMonth() do something more useful than nothing when the month
in question creates an invalid date?  If I try
d=new Date();

I am new to javascript.  I used the code below in Netscape 7.0 and in
IE 6.0.  The Javascript portion does not render in Netscape , but it
does show in IE.  Can someone explain why?  Any helpful insight would
be appreciated.

I want to display a link on the bottom of a webpage to go to the top,
but only if the user has to scroll down. If there's a small page, this
link has no use.
I'm using the following code (in the body onload)

Can any tell me what is the javascript equivalent of CSS border? I
would like to change the border of my cell when it is set on focus. I
have tried onFocus="style.border='3px'" but it is not working.
Thanks

I have a situation where I'm using XmlHttpRequests to update some data
in a table every few seconds. The script that executes when the data
comes into the browser checks to see if the data has changed compared
to that currently displayed - if it hasn't changed, it does not update

I got this javascript code below and each time i got to a safari browser
it thinks its netscpe any ideas.  But i threw in Safari code but it doesn't
work.
var browserName=navigator.appName;

Howdy,
I've got here a sample of my function which is supposed to fade a
certain piece of text to another colour. This line is then located in a
for loop and it works pretty well in IE 6. However, in Firefox, and thus

I am developing a Web Interface for a embedded target using CGI-C. I
have a requirement, which requires a HTML page to be continuously
updated by the server.ie.,I am dynamically updating the fields of the
HTML page using Javascript. I generate the javascript code from "C".

I'm trying to build a script which will fade the colour of my text to
another. Now I've got here a litte problem. Whene ever I want to replace
one of the numbers in:
  document.getElementById("main_txt").style.color = "rgb(0,0,0)";

I have a dropdown on a page (contact_us.asp) that when it is changed
the page reloads and displays the contact details selected, to do this
i have a onChange() running on the dropdown and that runs a function
in my javascript.

I want  to load an external javascript file, get its results and stick
them inside a <div> block. I also
want to do this in several places on a web page.
This way the browser doesn't have to wait for the external resource to