E-Mial validation

Hi,
I am new user to adobe flex. I am facing a problem in E-Mail id validation. Single e-mail id i can validate successfully. But i cannot validate multiple email id's sepeprated by commas in the text area. i need help on this.Following is my code for validate

<![CDATA[
import mx.collections.ArrayCollection;
import mx.controls.Alert;
import mx.validators.EmailValidator;
private var emailValidator:EmailValidator;
private function creationValidation():void
{
var emailAddr:String = new String();
emailAddr= email.text;
var emailId:Array = new Array();
emailValidator=new EmailValidator();
emailValidator.source= email;
emailValidator.property="text";
}



I need to call a function only if all the e-mail id's are valid

Thank u in advance