event.keyCode not working in Firefox

Forum|Forum|19 years ago
October 27, 2006
3 replies
1498 views

When i use this validation. Works fine in IE. Not working in firefox.
Gives an error "event not defined".
How to fix this issue in firefox?

<input type="text" name="var_no" onKeyPress="check(this);">

function check(obj){
if(event.keyCode < 45 || event.keyCode > 57)
{
alert('Enter correct value');
obj.focus();
event.keyCode = 0;
}
}

This topic has been closed for replies.

Correct answer dave_cozens

Instead of
event.keyCode = 0;
Try
return false;

Also, the alert is really annoying from a user perspective. Very intrusive.

Some other visual cue, such as briefly changing the backgound of the input box or even inserting some text next to it, for example, is friendlier.

obj.style.background="red";

D

dave_cozensCorrect answer

Inspiring

Instead of
event.keyCode = 0;
Try
return false;

Also, the alert is really annoying from a user perspective. Very intrusive.

Some other visual cue, such as briefly changing the backgound of the input box or even inserting some text next to it, for example, is friendlier.

obj.style.background="red";