if (document.location.href.indexOf('page228.htm') > -1) {
    function calculate_228() {
        //***************************************************
        var basic_plan = 175;
        var basic_coverage_sum = 200;
        var enhanced_coverage_sum = 260;
        //***************************************************
        var bp = document.forms['form1'].bcfield2.value;
        var bp_res = bp * basic_plan;
        var bc1 = document.forms['form1'].bcfield.value;
        var bc = basic_coverage_sum * bc1;
        var ec1 = document.forms['form1'].ecfield.value;
        var ec = enhanced_coverage_sum * ec1;
        var tmp = ec + bc + bp_res;
        document.getElementById('bc2').innerHTML = bp_res.toFixed(2);
        document.getElementById('bc').innerHTML = bc.toFixed(2);
        document.getElementById('ec').innerHTML = ec.toFixed(2);
        document.getElementById('tmp').innerHTML = tmp.toFixed(2);
    }

    function isinteger(e) {
        var ev = e != null ? e : window.event;
        return (ev.keyCode >= 48 && ev.keyCode <= 57);
    }

    function isinteger_2(e) {
        var ev = e != null ? e : window.event;
        return (ev.keyCode >= 46 && ev.keyCode <= 57);
    }
}