LJ icons that have animations in them are Animated GIF format.
There's a whole school of tricks for making web pages load faster. The underlying best practice is to make sure your graphics are optimized... if they are JPEG, compress them to the point that the artifacts are not troublesome. If they ar GIF, stick to the standard 216 web-safe colors in your pallette (its easy to identify the web-safe colors: the R, G, & B values are even multiples of 33hex, and look like this in the standard RRGGBB notation: 000000, 00ffcc, 33ff99, etc.). The PNG format is supposed to be designed for Web-sites, but I haven't played with it much.
When using the IMG tag, always specify the "Width=xx" and "Height=yy" values as pixels instead of percentages, and don't leave those values out if you can avoid it. This allows a web page's structure to fill in even while the images themselves are still loading. Otherwise, some browsers can't build tables or place text until the entire image has loaded, or they shift during the load because the image is large than they expected.
Perl is a CGI scripting language. Javascript comes in two flavors: Server-side scripts and Client-side scripts. Server-side JavaScripting is also considered "CGI" scripting. The language supported in the CGI depends on the web-server software. Client-side Javascript runs on the local computer after the page loads.
I'm fairly old-school on my web programming, sticking to straight HTML most of the time... although I've dabbled a bit with Dreamweaver and Flash, but never worked with interactive Flash Animations (using ActiveScript). See http://ajlmedia.com for an example of my most "modern" page design. I built that site about 3 years ago using Flash and Dreamweaver. I used to work for that company, but left them earlier this year for better opportunities.
There's a whole school of tricks for making web pages load faster. The underlying best practice is to make sure your graphics are optimized... if they are JPEG, compress them to the point that the artifacts are not troublesome. If they ar GIF, stick to the standard 216 web-safe colors in your pallette (its easy to identify the web-safe colors: the R, G, & B values are even multiples of 33hex, and look like this in the standard RRGGBB notation: 000000, 00ffcc, 33ff99, etc.). The PNG format is supposed to be designed for Web-sites, but I haven't played with it much.
When using the IMG tag, always specify the "Width=xx" and "Height=yy" values as pixels instead of percentages, and don't leave those values out if you can avoid it. This allows a web page's structure to fill in even while the images themselves are still loading. Otherwise, some browsers can't build tables or place text until the entire image has loaded, or they shift during the load because the image is large than they expected.
Perl is a CGI scripting language. Javascript comes in two flavors: Server-side scripts and Client-side scripts. Server-side JavaScripting is also considered "CGI" scripting. The language supported in the CGI depends on the web-server software. Client-side Javascript runs on the local computer after the page loads.
I'm fairly old-school on my web programming, sticking to straight HTML most of the time... although I've dabbled a bit with Dreamweaver and Flash, but never worked with interactive Flash Animations (using ActiveScript). See http://ajlmedia.com for an example of my most "modern" page design. I built that site about 3 years ago using Flash and Dreamweaver. I used to work for that company, but left them earlier this year for better opportunities.
Hope that helps ;)
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