Created
May 27, 2011 14:54
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Altering Metatags With JS
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <title>Altering Metatags At Runtime</title> | |
| <meta id="meta-test" name="Copyright" content="(C)2011 Some User" /> | |
| </head> | |
| <body> | |
| <h1>Altering Metatags At Runtime</h1> | |
| <p id="output">(Click "Check Metatag")</p> | |
| <button onclick="checkMeta('meta-test')">Check Metatag</button> | |
| <button onclick="changeMeta('meta-test', '(C)2011 Some Other User')">Change Metatag Contents</button> | |
| <script type="text/javascript"> | |
| window.updateCounter = 1; | |
| function checkMeta(id) { | |
| var el = document.getElementById(id); | |
| try { | |
| document.getElementById('output').innerHTML = el.getAttribute('content'); | |
| } catch(e) { | |
| console.log(e); | |
| } | |
| } | |
| function changeMeta(id, newValue) { | |
| var el = document.getElementById(id); | |
| var updateText = newValue + ' [Update #' + window.updateCounter++ + ']'; | |
| try { | |
| el.setAttribute('content', updateText); | |
| checkMeta(id); | |
| } catch(e) { | |
| console.log(e); | |
| } | |
| } | |
| </script> | |
| </body> | |
| </html> |
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