Try a regular expression search for multiple occurrences of "@". var pattern = new RegExp("/@{2,}/"); var fieldValue = "john at aol.com, kim at aol.com"; var result = fieldValue.match(pattern); if (result != null) { //multiple @s found } --Josiah Gordon -----Original Message----- From: javascript-admin at LaTech.edu [mailto:javascript-admin at LaTech.edu]On Behalf Of Neal, Craig Sent: Thursday, June 07, 2001 10:21 AM To: 'javascript at LaTech.edu' Subject: [Javascript] Email validation question I'm having trouble finding the answer I need in my JavaScript books regarding client-side JavaScript validation. Typical email validation routines include: if (document.form.formfield.value.indexOf("@") == -1) However I need to make sure that a user doesn't enter 2 or more email addresses in the form field and this only tests to see if there are no @ characters. How do I code it to test for 0 and 2 or more? Thanks _______________________________________________ Javascript mailing list Javascript at LaTech.edu http://www.LaTech.edu/mailman/listinfo/javascript