Show/Hide div using if then statement (javascript) - javascript

I have this show/hide set up here: http://jsfiddle.net/TwDSx/38/
What I would like to do is have the plus sign go away if the content is showing and vise versa if the content isn't showing hide the minus sign and show the plus.
I read articles on this using images to swap out, but nothing with just using html/css. Also, I would like to keep the javascript out of the html if this is possible, and just call for it externally.
any help is appreciated!

EDIT :
You can attach an event handler on your click to toggle the display attribute of the + or - button
$('#hide,#show').click(function(){
$('#hide,#show').toggle();
})
Quick demo:
http://jsfiddle.net/TwDSx/39/

I modified your Javascript a little and extended it so you can keep it in an external file, you just need to ensure you hide the #show div with CSS if you load the page with the content already showing, or vice-versa for the #hide.
The Javascript is as follows:
$('#show').click(function() {
ShowClick();
});
$('#hide').click(function() {
HideClick();
});
//This Javascript can be external
function ShowClick() {
$('#content').toggle('slow');
$('#hide, #show').toggle();
};
function HideClick() {
$('#content').toggle('fast');
$('#show, #hide').toggle();
};
The Js-Fiddle can be seen here: http://jsfiddle.net/mtAeg/

I think the simplest solution is to have only one button, #toggle, and to change the content of that button like so:
$('#toggle').click(function () {
if (this.innerHTML == '-') {
$('#content').slideUp('fast');
this.innerHTML = '+';
} else {
$('#content').slideDown('slow');
this.innerHTML = '-';
}
});
fiddle

Related

Completely removing loaded forms with jQuery -

So I'm using .load() to load a view into an element - and when I'm done with it I do an .innerHTML = '' to get rid of it.
But if I do it more than once (i.e. close and open the element) - the form is definitely gone in between and reloaded, but when I submit it submits duplicates.
Here is the code:
$('a.comments').click(function(e){
e.preventDefault();
// $('.overlaybackground').addClass('open');
Component.Overlay.toggleOverlay();
$('#commentcontainer').load($(this).attr('href'), function(){
Component.Forms.init(page, {});
});
});
$('.overlaybackground').click(function(e){
if(e.target.className == 'overlaybackground open'){
e.preventDefault();
Component.Overlay.toggleOverlay();
// $('.overlaybackground').remove('*:not(#commentcontainer)');
document.getElementById('commentcontainer').innerHTML = '';
}
});
Not sure of the specific scenario. But if you only want to toggle the visual, simply toggle the CSS property display of the form instead of removing it from the DOM:
display:none<--> display:block
Try the following:
$('#commentcontainer').empty()

change url to reflect content on the page hidden / displayed with Javascript

I am currently making a website for an architecture firm, HLArchitects. In the projects page I have created an HTML / Javascript image gallery. slightly above the main big image to the right an option can be found to choose between images / information. I use Jquery to show and hide the information or the images, however i don't feel this is such a great way to do so. It can be viewed here for reference: http://www.hla.co.za/projects/Hyuandai_Training_Centre/
Here is the relevant Javascript:
$(".selector a").click(function(){
if ($(this).attr("data-show") == "images") {
$("#info").fadeOut("fast");
$("#displayImg").fadeIn("fast");
$("#imageFlow").fadeIn("fast");
} else if ($(this).attr("data-show") == "info") {
$("#displayImg").fadeOut("fast");
$("#imageFlow").fadeOut("fast");
$("#info").fadeIn("fast");
}
})
Relevant HTML:
<p class="selector">images | information</p>
My problem is that the url does not change to reflect the content, but I do not want to make a separate page. I could imagine i would need to make use of link anchor's but am not to sure how to do so.
Thank you in advance
You can change the hash of an url by using:
window.location.hash = 'images';
EDIT:
Firstly, in this context you don't need to include the hash symbol!
Secondly, I missed the obvious, you only need to change the HTML to this to update the URL correctly:
<p class="selector">
images
information
</p>
Then you can use the following in your jQuery, note I've included the attribute check inside the selector itself:
$(".selector a[href=#images]").click(function() {
$("#info").fadeOut("fast");
$("#displayImg").fadeIn("fast");
$("#imageFlow").fadeIn("fast");
});
$(".selector a[href=#info]").click(function() {
$("#displayImg").fadeOut("fast");
$("#imageFlow").fadeOut("fast");
$("#info").fadeIn("fast");
});
If you want to refresh the page and get the same content, you can check the hash tag by doing the following (you may need to edit this depending what elements are showing initially):
$(document).ready(function() {
if (window.location.hash == '#images') {
$("#info").hide();
$("#displayImg").show()
$("#imageFlow").show();
}
else if (window.location.hash == '#info') {
$("#displayImg").hide();
$("#imageFlow").hide();
$("#info").show();
}
});
If all you're doing is setting text in the URL, you can do this easily by setting location.hash
location.hash="#SomeTextHereThatMayOrMayNotNecessarilyBeAnAnchor"
^ Note that "#" is important

Javascript: show/hide HTML node

I have an HTML page with some paragraphs which I would like to show or hide via Javascript. What should I do? Do I have to use the display property in the CSS file too?
Thank you
EDIT: Since the paragraphs will be the error messages of a form, I'd like that at the beginning none of them were visibile.
You can do like this :
To hide :
document.getElementById("elementId").style.display = 'none';
To show:
document.getElementById("elementId").style.display = 'block';
To hide initially do this and better you put them in span not para
$(document).ready( function() {
$("span").hide();
});
And whenever you need them to show call a javascript function on submit button and show using same
$("span").show();
But do not do like this this will show all messages, Put your if else logic and than show them by Id or class using jquery
$("#id").show();
$(".class").show();

Unhiding search result div with javascript or jquery without button click

I'm very frustrated right now... and making lots of mistakes. Sorry about that
I've been trying to unhide a specific div based on search results
If no search was made the div should not appear, and this is easy with css, but once the search is done I have to change the style to 'block'.
Since I'm using the google custom search javascript its too hard to replace the button for another similar button that triggers my javascript function.
I also couldn't figure out how to replace the "resultDiv" into some more complex path
I already done this javascript function to hide a div based on the result div...
css div style is at #main.section .widget.HTML
function check()
{
if (document.getElementById('resultDiv')) {
if ($('.gsc-expansionArea').is(":empty")) {
document.getElementById('resultDiv').style.display = 'none';
}
else {
document.getElementById('resultDiv').style.display = 'block';
}
}
}
I think there might be 2 possible solutions. First is to load the script
<body onLoad="check();">
but doesn't seems to work.
Second would be check URL for ?q= meaning a search was done, but I don't know how to get these parameters from URL.
Please assist me. Thank you
well, since you've tagged jquery:
$(window).load(function(){
check();
})
and your function check() could be more like
function check() {
if ($('#resultDiv').length) {
if ($('.gsc-expansionArea').is(":empty")) {
$('#resultDiv').css({'display': 'none'})
}
else {
$('#resultDiv').css({'display': 'block'})
}
}
}
--
Second would be check URL for ?q= meaning a search was done, but I
don't know how to get these parameters from URL.
use location.search
Location search Property
MDN window.location
Replace
<body onLoad="javascript:check();">
with
<body onLoad="check();">
You can use
$(document).ready(function()
{
check();
}
to load the function when the page loads. You can also simplify your function with jQuery:
function check()
{
var isEmpty= $('.gsc-expansionArea').is(":empty");
$('#resultDiv').toggle(isEmpty);
}
The documentation for toggle is here.

Hide/show a icon depending upon the location.search?

Let us say i have a page http://www.abc.com/xyz.html and i am going to access this page in two ways
simple as it is
I will append some stuff to the url e.g. http://www.abc.com/xyz.html?nohome by just putting the value ?nohome manually in the code.
Now i will add some javascript code something like this
$(document).ready(function () {
if (location.search=="?value=nohome") {
// wanna hide a button in this current page
}
else {
// just show the original page.
}
});
Any help will be appreciated.
As you are using jQuery to catch the DOM-ready event, I guess a jQuery solution to your problem would be fine, even though the question isn't tagged jQuery:
You can use .hide() to hide and element:
$(document).ready(function () {
if (location.search=="?value=nohome")
{
$("#idOfElementToHide").hide();
}
// Got rid of the else statement, since you didn't want to do anything on else
});

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