$(document).ready(function() {
    $("#zipCode").keypress(function(e) {
        if (e.which == '13') {
            searchClick();
        }
    });
});

searchClick = function() {
    if (!$('#priNavZipCode'))
        return;

    $('#priNavZipCode').val($('#zipCode').val());
    $('#priNavAgentName').val('');
    $('#priNavCity').val('');
    $('#priNavState').val('');
    $('#priNavMiles').val('20');
    $('#findAgentForm').submit();
}