// The following code was generated by Exacttarget.com please do not edit
<!--
// isEmail (STRING s [, BOOLEAN emptyOK])
// whitespace characters
var whitespace = " \t\n\r";

 
//
// Email address must be of form a@b.c ... in other words:
// * there must be at least one character before the @
// * there must be at least one character before and after the .
// * the characters @ and . are both required
function isValidEmail(s)
{  
            if (isEmpty(s)) return false;

  
            // is s whitespace?
            if (isWhitespace(s)) return false;

               
            // there must be >= 1 character before @, so we
            // start looking at character position 1
            // (i.e. second character)
            var i = 1;
            var sLength = s.length;

 
            // look for @
            while ((i < sLength) && (s.charAt(i) != "@"))
            { i++
            }

 
            if ((i >= sLength) || (s.charAt(i) != "@")) return false;
            else i += 2;

 
            // look for .
            while ((i < sLength) && (s.charAt(i) != "."))
            { i++
            }

 
            // there must be at least one character after the .
            if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
            else return true;
}

 
// Check whether string s is empty.
function isEmpty(s)
{  
            return ((s == null) || (s.length == 0))
}

 
// Returns true if string s is empty or
// whitespace characters only.
function isWhitespace(s)
{  
            var i;

 
    // Is s empty?
    if (isEmpty(s)) return true;

 
    // Search through string's characters one by one
    // until we find a non-whitespace character.
    // When we do, return false; if we don't, return true.
    for (i = 0; i < s.length; i++)
    {  
                        // Check that current character isn't whitespace.
                        var c = s.charAt(i);

 
                        if (whitespace.indexOf(c) == -1) return false;
    }
    // All characters are whitespace.
    return true;
}

 
function checkForm() {
            if (!isValidEmail(document.subscribeForm.elements['Email Address'].value)) {
            document.subscribeForm.elements['Email Address'].style.backgroundColor='yellow';
                        alert("Please enter a valid Email Address. (name@host.com)");
                        document.subscribeForm.elements['Email Address'].focus();
                        return false;
            }
}