[jQuery] Problem with validation

[Greg Baker]

I'm making a call to my validate() function when the document loads,
passing it an array of the following format:
[field_id] => [rule], [message]

I am looping on field_id, assigning a blur function that checks the
rule (which is a regexp), displaying a div if the regexp check
fails...

function validate(rules) {
        for(field in rules) {
                $("#"+field).blur(function() {
                        if(!$(this).val().match(new 
RegExp(rules[field]["rule"])) && !$
(this).siblings('div.error-message').length) {
                                
$(this).parent().append($("<div>").addClass("error-
message").html(rules[field]['message']))
                        } else {
                                $(this).siblings('div.error-message').remove()
                        }
                })
        }
}

my problem is every field gets assigned the the LAST regexp in my
rules array.  Is there something I'm missing?