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Joomla Javascript Problem
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Originally posted by Cliphead View PostYep, was slowing the site down anyways.Comment
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Originally posted by AtW View PostCan you add proper semicolons to your code, this may or may not have effect, but let's just be proper and end all statements with ;Originally posted by MaryPoppinsI'd still not breastfeed a naziOriginally posted by vetranUrine is quite nourishingComment
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Originally posted by d000hg View PostIt's optional in JS
JS will perform automatic semicolon insertion according to a precisely-specified algorithm, but if you don't know that algorithm, you can get caught out: for example, the following code will produce a syntax error because the single line without a semicolon (highlighted for your viewing pleasure) won't have a semicolon inserted automatically according to the rules:
Code:var bar = "a"; var baz = {}; var boo = 1; var bop = 2; a = boo + bop (baz).foo = bar;
Code:function foo() { // stuff happens... return { a: "foo", b: 7 }; }
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Back on topic: the following code will auto-refresh any images in the page that have a name attribute whose value is "refresh" followed by zero or more digits, such as "refresh", "refresh1", "refresh99999".
Notes:- All images to be refreshed must have a different name.
- All images lacking a name, or with a name not matching the pattern, will be left alone.
- If no images are found with a suitable name, the refresh timer won't be started.
- The code creates no global variables, and will neither interfere with nor be interfered with by any other code on the page, unless that code is also trying to change the src attribute of the same images.
- The code only needs to be included once, and must be after all the images. The best place is immediately before the </body> tag.
- It automatically picks up the original path/name of the image from the HTML, so even if you change the source of one of the images it will still work.
- You can change the refresh interval at the line near the top with a comment about it.
- If you want it on multiple pages, it's best to put it in an external file and use <script src="image-refresh.js"></script>.
- I've put up a demo page which refreshes two separate images every two seconds whilst leaving another untouched; the images just show the date and time that the browser asked for them.
- It's been tested on Safari 5 Mac, Firefox 3.6 Mac, and IE6 XP, but it should be OK anywhere - in fact, it should even work on Netscape Navigator 3
Code:(function() { // Demo: http://www.nickfitz.co.uk/examples/javascript/image-refresh/image-refresh.html var config = { refreshInterval: 10, // This is the refresh interval in seconds imageMatcher: /^refresh\d*$/ }, refreshImages = [], images, refreshImagesLength; images = document.getElementsByTagName("img"); for (var i = 0, l = images.length; i < l; i++) { if (images[i].name.match(config.imageMatcher)) { refreshImages.push({img: images[i], src: images[i].src}); } } refreshImagesLength = refreshImages.length; if (refreshImagesLength) { setInterval(function() { for (var i = 0; i < refreshImagesLength; i++) { refreshImages[i].img.src = refreshImages[i].src + "?" + new Date().getTime(); } }, config.refreshInterval * 1000); } })();
Last edited by NickFitz; 4 September 2010, 21:11.Comment
- All images to be refreshed must have a different name.
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Originally posted by NickFitz View PostBack on topic: the following code will auto-refresh any images in the page that have a name attribute whose value is "refresh" followed by zero or more digits, such as "refresh", "refresh1", "refresh99999".
Notes:- All images to be refreshed must have a different name.
- All images lacking a name, or with a name not matching the pattern, will be left alone.
- If no images are found with a suitable name, the refresh timer won't be started.
- The code creates no global variables, and will neither interfere with nor be interfered with by any other code on the page, unless that code is also trying to change the src attribute of the same images.
- The code only needs to be included once, and must be after all the images. The best place is immediately before the </body> tag.
- It automatically picks up the original path/name of the image from the HTML, so even if you change the source of one of the images it will still work.
- You can change the refresh interval at the line near the top with a comment about it.
- If you want it on multiple pages, it's best to put it in an external file and use <script src="image-refresh.js"></script>.
- I've put up a demo page which refreshes two separate images every two seconds whilst leaving another untouched; the images just show the date and time that the browser asked for them.
- It's been tested on Safari 5 Mac, Firefox 3.6 Mac, and IE6 XP, but it should be OK anywhere - in fact, it should even work on Netscape Navigator 3
Code:(function() { // Demo: http://www.nickfitz.co.uk/examples/javascript/image-refresh/image-refresh.html var config = { refreshInterval: 10, // This is the refresh interval in seconds imageMatcher: /^refresh\d*$/ }, refreshImages = [], images, refreshImagesLength; images = document.getElementsByTagName("img"); for (var i = 0, l = images.length; i < l; i++) { if (images[i].name.match(config.imageMatcher)) { refreshImages.push({img: images[i], src: images[i].src}); } } refreshImagesLength = refreshImages.length; if (refreshImagesLength) { setInterval(function() { for (var i = 0; i < refreshImagesLength; i++) { refreshImages[i].img.src = refreshImages[i].src + "?" + new Date().getTime(); } }, config.refreshInterval * 1000); } })();
Comment
- All images to be refreshed must have a different name.
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