JS problem

[buducom]

I have the following Javascript in my PHP site.
The problem is that the regexp doesnt allow
email addresses with spaces before or after the email.
how would i have to change it for example it doesnt accept:
"[e-mail] " excluding the quotations

<script language="javascript">

function validEmail() {

var re = new RegExp();
re = /^{\w+([.-]?\w+)@\w+([.-]?\w+)(.\w{2,3})+$/;}

if(document.register.emailis.value == "") {
alert("You have to use an email address");
}

if(!re.test(document.register.emailis.value)){
alert("Your email is incorrect. Make sure there are no spaces");
}else{
document.register.submit();
}
}
</script>

[Shrike]

The answer: don't use Javascript for validation, it's unsafe.

re = /^{[\s+]\w+([.-]?\w+)@\w+([.-]?\w+)(.\w{2,3})+[\s+]$/;}

(no whitespace at start and end of string)