need help validating an email address

[mcrumlish]

Hi,

I have a problem with validating email in javascript. I can do this in PHP but I have to use javascript for this and I am not a javascript expert.

I am modifying an existing script and that has an email validation function. This works for most parts of validating an email but where it falls down is, when a user doesn't enter the .com (etc.) after the email ie: the current script lets them enter me@mysite where it should be me@mysite.com

Can someone help me with adding a check to the function below, that will ensure a user enters a text, a . and then more text after the @ symbol.

Thanks

Here is how it looks at the moment:

function chkEmail(txt) {
	if (!txt || txt.length < 1) {
		OT_ErrAdd("You must enter an email address\n");
		return false;
	}
	i = txt.indexOf('@');
	if (i < 0) {
		OT_ErrAdd("Your email address must contain an '@' symbol\n");
		return false;
	} else if (i == 0) {
		OT_ErrAdd("Your email address cannot start with the '@' symbol\n");
		return false;
	} else if (i == txt.length-1) {
		OT_ErrAdd("Your email address cannot end with the '@' symbol\n");
		return false;
	}
	i = txt.indexOf('@', i+1);
	if (i != -1) {
		OT_ErrAdd("Your email address must contain only one '@' symbol\n");
		return false;
	}
}

Thanks in advance,

Martin

[timmoser]

Use reg-x:

 function isValidEmail(emailAddress) {
	 var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
	 return re.test(emailAddress);
 }

I'm no reg-x expert, but I do know this is the right way to go; I got this one online somewhere, months ago.

[mcrumlish]

do you know how I would combine that code into the existing function I have?

[mcrumlish]

can anyone help with this?