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Web Dev + WordPress + Security
Category: JavaScript
69 posts

Really Simple Browser Detection with jQuery

For my Serious redesign, I push the envelope in terms of CSS’ advanced selector functionality. Stuff like: p:first-child p:first-child:first-letter p:first-child:after p:first-child:first-line Plus lots of other stylistic tricks that require CSS3 support in order to display as intended. Fortunately, most of the browsers to which I am catering with this new design have no problems with most of the advanced stuff. Of course, Internet Explorer chokes on just about everything, but fortunately IE’s proprietary conditional comments make it easy to fix […] Continue reading »

Perfect Pre Tags

If you operate a website that features lots of code examples, you know how important it is to spend some quality time styling the <pre></pre> element. When left unstyled, wild <pre></pre> tags will mangle your preformatted content and destroy your site’s layout. Different browsers treat the <pre></pre> tag quite differently, varying greatly in their default handling of font-sizing, scrollbar-rendering, and word-wrapping. Indeed, getting your preformatted code to look consistent, usable, and stylish across browsers is no easy task, but it […] Continue reading »

Dynamic Link Insertion via Unobtrusive External JavaScript

In my recent guest post at The Nexus, I discuss Google’s new nofollow policy and suggest several ways to deal with it. In that article, I explain how Google allegedly has changed the way it deals with nofollow links. Instead of transferring leftover nofollow juice to remaining dofollow links as they always have, Google now pours all that wonderful nofollow juice right down the drain. This shift in policy comes as a terrible surprise to many webmasters and SEO gurus, […] Continue reading »

9 Ways to Set Dynamic Body IDs via PHP and WordPress

When designing sites, it is often useful to identify different pages by adding an ID attribute to the <body></body> element. Commonly, the name of the page is used as the attribute value, for example: <body id=”about”></body> In this case, “about” would be the body ID for the “About” page, which would be named something like “about.php”. Likewise, other pages would have unique IDs as well, for example: <body id=”archive”> </body><body id=”contact”> </body><body id=”subscribe”> </body><body id=”portfolio”></body> ..again, with each ID associated […] Continue reading »

Unobtrusive JavaScript for ‘Print-This’ Links

One of the oldest JavaScript tricks in the book involves providing a “print this!” link for visitors that enables them to summon their operating system’s default print dialogue box to facilitate quick and easy printing of whatever page they happen to be viewing. With the old way of pulling this little stunt, we write this in the markup comprising the target “print this!” link in question: Continue reading »

PHP and JavaScript Fallbacks for Your Public Feedburner Count

With the recent Feedburner service outage, many sites across the Web experienced severe drops in their Feedburner subscriber counts. Apparently, Google is requiring all Feedburner accounts to be transferred over to Google by the end of February. In the midst of this mass migration, chaotic subscriber data has been reported to include everything from dramatic count drops and fluctuating reach statistics to zero-count values and dreaded “N/A” subscriber-count errors. Obviously, displaying erroneous subscriber-count data on your site is not a […] Continue reading »

Targeting External Links Intelligently

In the beginning… In the time of the dinosaurs, HTML authors controlled the way anchors opened by adding target=”_blank” as an attribute on an anchor tag. Then the molten mass of Internet began to cool into the thin crust of Web 2.0, the continents began to separate and there came a great migration of pages from HTML to the shinier, new XHTML. Most authors didn’t know what that meant, but it had an “X” in it, so it must be […] Continue reading »

New and Improved JavaScript Clock

Earlier this year, I posted an article explaining how to implement an unobtrusive JavaScript dynamic clock. While not completely earth-shattering or cutting-edge or anything like that, the dynamic JavaScript clock has received some great feedback from users who found the script to be exactly what they were looking for. In fact, a couple of weeks ago, Bill Brown went above and beyond by taking the time to improve the script with some great new features, including a “blinking seconds separator […] Continue reading »

Unobtrusive JavaScript: 5 Ways to Remove Unwanted Focus Outlines

I recently wrote about how to remove unwanted link outlines using a pure-CSS method that works on every modern browser except (wait for it) ..Internet Explorer 6! Yes, that’s right, another reason why (almost) everyone is pushing hard to eliminate Internet Explorer from existence. Nonetheless, removing those pesky unwanted link outlines in IE6 is not possible with CSS, but it’s a snap with a little JavaScript. Here are four unobtrusive JavaScript techniques (plus one CSS-only method thrown in for good […] Continue reading »

Save Bandwidth by Serving jQuery, MooTools, Prototype via Google’s AJAX Libraries API

A great way to save bandwidth is to take advantage of Google’s AJAX Libraries API to serve your favorite open-source JavaScript libraries. Here is how Google explains it in their official documentation: The AJAX Libraries API is a content distribution network and loading architecture for the most popular open source JavaScript libraries. By using the google.load() method, your application has high speed, globally available access to a growing list of the most popular JavaScript open source libraries. Continue reading »

The Ultimate Guide to swfIR Image Replacement

In this ultimate guide to swfIR, you will learn how to use swfIR to replace your ordinary images with richer, stylized graphics. swfIR enables efficient, practical and scalable application of drop-shadows, rounded corners, and even image rotation to any number of specified images throughout your site. From concept and application to examples and recipes, this guide covers everything you need for successful swfIR implementation. The Challenge.. There are many ways to enhance the visual presentation of your images. Popular visual […] Continue reading »

IE6 Support Spectrum

I know, I know, not another post about IE6! I actually typed this up a couple of weeks ago while immersed in my site redesign project. I had recently decided that I would no longer support that terrible browser, and this tangential post just kind of “fell out.” I wasn’t sure whether or not to post it, but I recently decided to purge my draft stash by posting everything for your reading pleasure. Thus, you may see a few turds […] Continue reading »

How to Deal with IE 6 after Dropping Support

As announced at IE Death March, I recently dropped support for Internet Explorer 6. As newer versions of Firefox, Opera, and Safari (and others) continue to improve consistency and provide better support for standards-based techniques, having to carry IE 6 along for the ride — for any reason — is painful. Thanks to the techniques described in this article, I am free to completely ignore (figuratively and literally) IE 6 when developing and designing websites. Continue reading »

Beware of Margins or Padding when Using the min-width Hack for IE

While we all watch as Internet Explorer 6 dies a slow, painful death, many unfortunate designers and developers continue to find themselves dealing with IE6’s lack of support for simple things like minimum and maximum widths. Fortunately, there are solutions to this problem, primarily in the form of CSS expressions such as this: /* set the minimum width for IE 6 */ #target_element { width: expression((document.body.clientWidth < 335)? “333px” : “auto”); /* min-width for IE6 */ min-width: 333px; /* min-width […] Continue reading »

Unobtrusive JavaScript: Auto-Clear and Restore Multiple Form Inputs on Focus

In an effort to organize my pile of offline notes, I will be posting a number of quick, “to-the-point” tutorials on a number of useful topics. In this post, I share an excellent method for auto-clearing and restoring multiple form field inputs using a bit of unobtrusive JavaScript. This method was discovered at xy.wz.cz. There are two steps to this technique, which should take no longer than five minutes to implement. Continue reading »

Use Your Browser to Edit Any Live Web Page Using a Single Line of JavaScript

This was just too juicy to pass up. Blogstorm recently blogged about an easy JavaScript technique for making any website editable. After checking it out for myself, I just had to share it here at Perishable Press. Here it is: javascript:document.body.contentEditable=’true’; document.designMode=’on’; void 0 Paste that single line of code into the address bar of any modern browser and have fun editing the page. Obviously, any changes will only apply to the page as seen in your browser, not the […] Continue reading »

Welcome
Perishable Press is operated by Jeff Starr, a professional web developer and book author with two decades of experience. Here you will find posts about web development, WordPress, security, and more »
Blackhole Pro: Trap bad bots in a virtual black hole.
Thoughts
LOL @ “weekly” support: “Your request has been received and will be reviewed soon. Neil (your support guy) checks support requests weekly. Rest assured we’ll get to it!” — Gotta be kidding with this.
After several days of work, finally taking a break. If anyone needs me, I'll be in Zora’s Domain, working thru Mah Eliya shrine.
Never ever call the client a useless idiot. Even if it’s true.
Inevitable that Google shuts down Feedburner. Maybe this year? Who knows. Here is a nice summary plus alternatives.
There is no way that Marvel can serve up anything better than what they've already done with Infinity saga/Endgame. Knowhere to go but down, sadly.
I built a new search launchpad to make my life easier. So I can search multiple engines quickly and easily.
Updating all muh plugins for WP 5.5 imminent release! Wut August :)
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