I want to create my webpage so that a part at the top that says "Welcome!" and a "main part" below that. When a user clicks on a link in the main part (say, it links to www.example.com), the main part should change to the content of www.example.com, but the top part should remain the same. How can I achieve that?
In ye olde days, this was done using frames, but for many reasons, they are going out of use. Try taking a look at iframes.
I believe you're looking for the
<frameset>
tag: http://www.w3schools.com/tags/tag_frameset.asp
The <frameset> tag is not supported in HTML5. Although <iframe> works, it will impact your page's searchability (SEO), and setting up the page to scroll properly will be a hassle because the "top" part of the page will be like a page of itself.
Instead of using (i)frames, if you have PHP enabled on the server, you should store the "top" of your webpage as a separate file like "top.php", and in every page, include that with
include_once("top.php")
Related
I've got a multilanguage ModX site. And noticed that when changing languages, it displays a different logo. WHat I need to do is to setup same logo for both languages. Basically:
English side showing: logo.png
Other language side showing: logo-new.png
I don't want to replace logo-new.png file with the correct image file on server in case another part of the site uses that file. So I'm left with actually editing the site header to show the correct logo.
When I go to ModX's site template, I see this code for the header:
<img src="[[++site_logo_img]]" itemprop="logo" class="site-logo">
So my question would be, where do I go to edit the ++site_logo_img value?
For web context try to look in system settings, for other contexts in context settings - https://rtfm.modx.com/revolution/2.x/administering-your-site/contexts
[[++site_logo_img]]
This is a MODX setting, these can be found in settings or in context settings.
Lets say you need a different logo for 2 MODX contexts, you can set a site_logo_img different setting in each context.
Are Content Scripts (http://code.google.com/chrome/extensions/content_scripts.html) injected into prerendered pages (document.webkitVisibilityState== 'prerender') ?
I’ve been reading https://developers.google.com/chrome/whitepapers/prerender and https://developers.google.com/chrome/whitepapers/pagevisibility, and am trying to figure out how Content Scripts work with page prerendering/prefetching.
Thanks
TheZ, tomdemuyt: I’m afraid you guys are missing the point. ‘run_at’ specifies whether the content script is injected before or after the DOM is constructed.
However, I am talking about document.webkitVisibilityState, which can be ‘prerender’ (when the page is in a background/invisible tab), ‘hidden’, or ‘visible’. Note that webkitVisibilityState can transition from ‘prerender’ to ‘hidden’ or ‘visible’, or back and forth between ‘hidden’ and ‘visible’, without any changes being made to the DOM. (In order to better understand this, read the articles linked in my original post.)
I think I’ve been able to determine that content scripts ARE injected into prerendered pages. Here’s the problem, however: let’s say my content script does something that should not occur on a prerendered page. For instance, it does pageview count, or adds animation, neither of which should begin until the user is actually viewing the page. So it seems that my content script should do something like what’s shown in the code examples on https://developers.google.com/chrome/whitepapers/pagevisibility - check document.webkitVisibilityState, and also listen to the ‘webkitvisibilitychange’ event, and only do pageview count/start the animation when document.webkitVisibilityState is, or has transitioned to, ‘visible’.
I may have just answered my own question, but I just wanted to make sure that I was on the right track.
Thanks
As TheZ mentioned, you should ues the run_at setting.
Link to docs : http://code.google.com/chrome/extensions/content_scripts.html#registration
Suppose I want the browser to load an image right on the first connection it makes to my website. How do I do that, considering that by default the image loads later on when it's actually called for?
Also, after the whole page finishes loading, suppose I want to load more objects (say images) that aren't required yet but are just for buffer. How do I do that? Help me people, I've been at it for quite a long time.
I'm somewhat successful with the first problem by adding a script tag while actually calling an image at the beginning of my index.php's html head part which goes like:
<script src="http://www.mysite.com/my/image/url.png"></script>
But this I realize is bad scripting.
As for "Why would you want to do that?", it's for educational purposes and also because when someone visits my site, I need to load and display certain things before other things get loaded.
For preloading you probably could start with
<body onLoad="Preload('image1.jpg', 'image.gif', 'image.png', ...)">
And preload is a JavaScript function which adds each of the array of images to DOM like
document.imageArray[i].src = args[i];
I have an article set up in Joomla that displays Terms and Conditions for the site users. I would like this to show up in a shadowbox when a user clicks a link. Here is the current anchor text example:
Terms and Conditions
This works out great for displaying the entire web page, but what I would like to do is just display the article text on the page (plain with a white background). Is this in someway possible with shadowbox? If so, how?
If I'm understanding you correctly - you want to suppress the modules and other periphery from your 'page' when it is loaded in the shadowbox.
Add ?tmpl=component to the url of your link.
You can do this with a div element and css shadow effect.
How to show/hide div is explained here:
http://www.randomsnippets.com/2008/02/12/how-to-hide-and-show-your-div/
How you can add shadow is explained here:
http://placenamehere.com/article/384/css3boxshadowininternetexplorerblurshadow/
I believe there are some components to do this - but you may have to get creative to do it without pulling the whole page with an a href tag.
In the database there's a particular area that holds that specifically and you could write a little query to just pull that information specifically and put it in the shadowbox, but what that query would look like I'm not sure.
At the top of many pages in our web application we have error messages and notifications, 'Save' and other buttons, and then our h1 tag with the content title. When making a web application accessible, is it ever acceptable to have content above the top-level structure tag like we do here?
As a screen reader user I don't like content above the main heading. Normally I navigate by headings so would miss the error message. A better solution is to output an h1 heading above the error message, then leave the rest of your headings in tact giving you two h1 headings.
Yes (you can put stuff above them). The H simply means Heading. It's a question of what the heading relates to I guess.
My only caveat is, H2 shouldn't really be above H1, and H3 Shouldn't be above H2. But I don't think it's an actual rule.Websites have menus, warning, notifications. It's acceptable to put them above the rest of your content. I don't see how it would affect accessibility as long as your content is ordered logically. Look at the page CSS turned off. Does it look logical? That's the most important part of accessibility.
Although some people do go that extra mile and have the menu as the last item in the markup and use CSS to bring it back to the top. Personally, I find that solution counter productive. The menu is still important, it belongs at the top of the page.
Yes, just consider it is in that order that the user will get the information. So, if you just did an operation it sounds like a good idea to get any message related to it as the first thing. If it is a notification that appears on any page unrelated to what you are doing, I wouldn't put it above, as it might be a little weird.
Also you can use a text browser that doesn't use styles, it should look like a document with appropriate headers.
Heading tags are used to indicate the hierarchy of the content below it. You should only have one h1 tag and it should be the first content to appear on your page (this is usually the name of the site). Also, you shouldn't skip heading tags when drilling down through different tiers of content.
In your case, you can still use CSS to position items above the h1 tag as long as it is in the correct order in the html.
I assume the elements above the heading are used by JavaScript. In that case, it's preferable if they are created by JavaScript, not included in the source of the page.
To return to your original question, it is probably best that they be at the foot of the page. However, if they are hidden using the CSS "display: none;" or "visibility: hidden;" properties then they will not be seen by most (perhaps all?) screenreaders or by many other assistive technologies, and so should not be an issue. I've written a fairly detailed explanation of why accessibility technology ignores such elements.
Of course if somebody disables CSS things are going to look pretty messy. If there is content on the page that can be used even when CSS and/or JavaScript are disabled, then putting those elements at the bottom of the page will at least make things less cluttered.