valifating a number onchange
|
| View previous topic :: View next topic |
| Author |
Message |
Koplaf
Joined: 28 May 2006 Posts: 130
|
| Can i validate a number onchange? |
| |
|
|
|
|
Kopilman
Joined: 25 May 2006 Posts: 162
|
| Koplaf, in a text box? |
| |
|
|
Koplaf
Joined: 28 May 2006 Posts: 130
|
I wanna do something like onchange="javascript:if(isNaN(parseInt(document.form.input.value, 10))) {alert"Not a number";};"
And it doesn't work :( |
| |
|
|
Kopilman
Joined: 25 May 2006 Posts: 162
|
| Koplaf, onchange = javascript |
| |
|
|
Koplaf
Joined: 28 May 2006 Posts: 130
|
| Yup, text box |
| |
|
|
Kopilman
Joined: 25 May 2006 Posts: 162
|
You dont need the javascript: there
And you can replace document.form.input.value with this.value |
| |
|
|
Koplaf
Joined: 28 May 2006 Posts: 130
|
<td> <input type=text name="telefon" value="" size=20 onchange="if (isNan(parseInt(this.value, 10))) { alert('Help'); }" /> </td>
Doesn't work
My js should bring up an alert on input change |
| |
|
|
|
|