I'd like to logout users when the associated session expires as soon
as reasonably possible. Assume the users computer died for any
reason, I'd like to logout the user server-side by keeping the session
timeout as short as reasonably possible, maybe 3 minutes.
To keep the session alive so the
Passing parameters using an object has become a popular method among
jQuery add-ins. Few plugins actually validate the passed parameter
object to ensure that elements are spelled correctly.
Most plugins use the jQuery.extend method which would copy the passed
parameter { resiz: 1 } just as
I've added a jQuery .onClick to a form submit.
Is there a way to prevent the form from submitting?
The following form is used in several plug-ins...
var oGlobalObject;
(function( externalObject) {
... code here, setup properties and methods on externalObject
})( oGlobalObject );
so variable abc is defined as a global object with properties and
methods..
Is the following form equivalent?
o.fnTest = function(){ alert('Hello World') }
o.fnTest = function fnTest(){ alert('Hello World') }
both seem to assign the function to o.fnTest. Most of the plugin
libraries I've seen use the anomymous function assignment. The latter
(a named, not anomymous function in FireBug) is easier to
I occasionally get this error in IE8 when refreshing a page. The
debugger is locked out making it difficult to identity the cause.
There's a snippet of code I am using to preload images which when I
borrowed it, mentioned this problem. I've posted it below.
Any suggestions on how this code
frameset id=outer rows=20%,*
frame name=econsole src=econsole.htm frameborder=0
noresize=noresize /
frame name=launch src=launch.htm frameborder=0
noresize=noresize /
/frameset
$(document).ready( function() {
// how would I reference a div of ID=test insode the frame named
econsole?
I am building a client-side and server-side solution and want to use
JSON through Ajax in both directions.
I have ASP or JavaScript server-side, though Microsoft's support of
server-side JavaScript seems nil, so I am reluctantly conceeding to
use ASP.
I'd appreciate suggestions on available
Is there a cross-browser jQuery plug-in that can preload several
different mp3 audio files and provide play / stop methods?
I need to play an audio file in response to a user action. The player
must be completely cross-browser compatible, and hopefully use an
available plug-in. jQuery.media seems to be the ticket, but while I
can get it to work in manual mode, it doesn't autoplay for me.
This may be a problem with
I'm looking for a jQuery extension to show off artwork. Maybe 10 to
100 paintings. Maybe more.
There are so many jQuery extensions I need some help finding the
needle in the haystack.
Any recommendation appreciated.
Is there anything that will perform album cover flipping like iTunes?
I've tested in IE 6, 7, Firefox, Opera, but Safari (for windows) is
unpredictable, sometimes fading an image in, then not another.
http trainthetrainers dot net
the script in question is banner-top.js
check the banner ad at the top. It's set to 8 second rotate for
debug.
Any known problems
Anyone have a jQuery-esque method of keeping a DIV of information (or
controls) in the viewport when the window has vertical scrolling?
Sam
I am learning, I am learning...
I missed the subtle difference in the documentation:
$('a, b') and $('a', 'b')
!!!
The way to filter my list is using a function.. like so:
('ol.ol1 li').filter( function() { return $('li.correctchosen',
this).length != 0 } )
// Filters the first set
I found a prototype.js solution here:
http://www.prototypejs.org/feed/api/position/atom.xml
Note the div in the top-right of the page.
Anyone done anything similar in jQuery? Plans for the future?
Sam
$('ol.ol1 li') // returns a complete set of list elements containing
quiz results...
Some of the results contain correct answers, some incorrect
answers... The indicator would be another list contaiing the choices
and assigned classes: .correctchosen or .correctnotchosen
How do I filter the
Is there a way to find all spans with a title=... using a single $
('span:title') or similar construct?
Sam
.css( {background: navy} )
is a great facility, but the object keys cannot follow the
corresponding css names which is why css background-color is
shortended to background.
Is there a list somewhere of all the revised property names?
I need border-bottom in particular.
Sam
Thanks.
Sam
I have an element in one div, when clicked, I'd like to blindDown()
another element in another div.
No problem so far.
I'd like to set the vertical positioning of the latter element to the
same vertical positioning of the element clicked, before the
blindDown() is executed.
The divs containing
Caching a jQuery object globally or any other way will help if the
object is:
- expensive to build, e.g., a large DOM, sprinkled with many objects
as was the case with my 250 questions
- reusable, e.g., a user can click to hide all, show all.
Instead of recalculating the object, I save it in
clueTips doesn't have links to download the supporting javascript(s).
Am I missing them somewhere or are we supposed to view source and grab
the code?
Sam
After hunting around, I ended up using a window icon, but I think
the expand / collapse or + / - would be better in retrospect.
I'm surprised there's no defacto standard emerging on icon
semantics... e.g., an office set, a navagational set...
Anyone know of any standards?
Sam
if($(obj).attr('checked')) { // Hide the correct answers?
$('.quizsubheader').hide('slow');
} else {
$('.quizsubheader').show('slow');
};
What's the best one-liner method to achieve the same result above?
Sam
When I expand my quiz to 250 questions, the jQuery scripts are timing
out. This happened once before and I was able to diagnose the problem
to a selector which wasn't precise. It was installing event handlers
on many elements, not the few necessary elements.
So here I am again, same symptom.
It's tolerable if I change
.hide('fast')
to
.css('display', 'none')
similar for show...
Any way to track where time is being spent in JavaScript?
Sam
caching the object globally made the performance suitable for
production.
Thanks,
Sam
Any suggestions for onmouseover tip libraries?
Sam
I was hoping for a bubbletip based on jQuery. Bubbletips look great.
baassistance wont require another library and will meet my needs. T
Thanks,
Sam
Is there a great (small) show / hide icon out there somewhere?
Intuitive, good design, good looks, etc...
Sam
Silk is a great deal, great looking, almost 1,000 icons. I don't see
a show / hide tho...
IconBuffet looks like it could be the deal. I've signed in as
SamCKayak there...
Sam
Does jQuery .show() and .hide() set a flag anywhere on an object to
indicate if it was last show()n or hide()n?
Sam
I have a web page with a user-selectable number of quiz questions.
Each question is in a list element. Sometimes users select 250 quiz
questions which is a lot...
I wanted to solicit thoughts about automatically scrolling to the next
question when a choice is made (when a radio button is
I could do a test, but discussion seemed like it might turn up
something else...
.parents(expr) supports an expression to filter parent elements,
e.g.,
.parents('.getme') // returns all parents with class getme
the $(expr) in general allows any css (or xml) selector. Does expr
extend this way
Background: My usual server-side languages are ASP (not .NET) and MS
SQL...
I've manually constructed JSON strings server-side. Worth the effort
because JavaScript picks them apart naturally, no special library
required.
In the other direction, I've relied on hacks. Usually CSV or
semicolon
Things get quirky on a page if .show() and.hide() are running
simultaneously on different blocks. I've implemented a callback to
queue things up serially. It seems to run a little smoother now.
Is there an integrated queueing system in jQuery that will relieve me
of the burden of serializing
Thanks everyone. I'll reply to several questions all at once here.
- It's ASP, not .NET. ( I know, I know.)
I tried the JavaScript decodeURI and found it doesn't decode the ASP
Server.URLEncode() well.
I know that jQuery wants to stay small, but it seems like adding php,
asp, .net decoders
I'm past this problem which is why the test page is down. I found the
fix by trial and error... which was: the return codes in an event
handler were resetting the selected radio button to the initial state
before the click event. I think I'm doing a return false to
preserve the jQuery-selected
I'm setting the width of a DIV using:
...).children('div').attr( {width: ('80px'} );
It seems to have no effect (I have margin:0 auto; set in CSS).
The rendered (view/generated source) shows:
div width=80
which isn't what I had expected. I know that:
div style=width:80px
will work fine.
Setting the width using .css( {width: 88} )
worked great.
Thanks...
First: this page validates. I've gone as far as running the
rendered code through the WDG validator.
No errors.
No CSS errors either.
Renders fine in IE 6, 7.
Firefox, does a trick with the top of the table.show(), extending the
border-top of the table beyond the right end of the box
I have an element (call it e1) with an onclick handler nested a
variable length from a parent element (call it p1).
I need to go up to the parent (p1), which might be 1, 2, or 3 levels
up, then down to another element (call it e2). I want to hide element
e2 when e1 is clicked.
Is there a
I have an unordered list, each list element contains a radio button,
and some text, e.g.:
liinput type=radioThis is some text in list element 1./li
liinput type=radioThis is some text in list element 2./li
There can be from 1 to N list elements in the ul, what I need to do
is concatenate the
Here's a simpler problem...
If I have a jQuery object which holds an array of elements, e.g.,
$('li')
Is there a way to collapse the innerHTML of that array into a string
of concatenated text?
Sam
Thanks. This gives me all I need.
Sam
Can
$(document).ready(function() {
appear in an included script src=filename
or must it appear only once in the document header?
Sam
I did a little Json and some XML using prototype last year. Now I
have jQuery and need to pass about 4 string parameters to the server,
query a database, and return about 4 string parameters.
My current method to post the get is:
$.get(../survey/postsurveytodb.asp, {
surveyid:
I found JSON on the return trip to work fine.
Sometimes the answers come to me as soon as I post.
Sam
In ASP, I am building a JSON object and escape the data using
Server.URLEncode(strParmChoices)
It seems this encodes blanks as a plus sign +.
Back in JavaScript, it looks like unescape(+) leaves the plus as a
plus. I've band-aided the problem using
Here's a prototype of a quiz form...
http://trainthetrainers.net/test.htm
I've run into a problem with the .check() function with radio
buttons...
On all the quiz choices, clicking anywhere on the question EXCEPT THE
RADIO BUTTON, will dynamically check the radio button. Clicking on
the radio
Just getting started...
I have several unordered lists on a page. I want to add a class
'hilite' to an ordered list onmouseover and remove the class
onmouseout.
So far, so good. My problem is that while the mouse is inside the
ordered list, an onmouseout event fires when the mouse moves over
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