| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script> | |
| function changeText(id, newText) { | |
| var node = document.getElementById(id); | |
| node.childNodes[0].nodeValue = newText; | |
| } | |
| </script> | |
| <meta name='viewport' content='width=device-width'/> | |
| <style> | |
| body { | |
| margin: 0px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <button type="button" id="tap_button" onclick="changeText('tap_button', 'updatedValue')" style="width:100px;height:100px">oldValue</button> | |
| </body> | |
| </html> | |