tweak script to slightly alter what it does...

[sanjuT]

this script checks if the user has entered 3 letters followed by 6 numbers in the textbox:

<input type="text" name="AccNo" onChange="javascript:
if (!/^[a-z]{2,5}[0-9]{6}$/i.test(this.value)) {
alert('Invalid account number!');
this.value='';
this.focus();
return false;
}
return true;">

How can this script be altered to check if the user has entered a number, and if that number is at least 12 (less than 12 would trigger the alert).

THANKS!!!

[Padrill]

This code is matching 2 to 5 letters followed by 6 digits (however I'm confused as to what the beginning ! and ending i are there for in the regular expression - can anyone enlighten?)

As to comparing the number, that's done easily:


<input type="text" name="AccNo" onChange="java script:
if (parseInt(this.value)<12) {
alert('Invalid account number!');
this.value='';
this.focus();
return false;
}
return true;">


---------------------

You're welcome :D

[pyro]

The beginning ! is part of the if statment, meaning 'not' ie. is not equal to the following reg exp. The ending i means to make the reg exp case insensative. ie in alphabetic matches, it will match aaa and AAA

[sanjuT]

Thanks!

that code works perfectly for me!:D

[Padrill]

Thanx Pyro! it now seems obvious and I wonder how could I get confused; but it reminded me of the spanish exclamation eg. iHola! so I thought !i was a pair to begin with... One's mind is free to wander.