$(function () {
    $("[name='topformBySearch']").submit(function () {
        var keywords = $("#topkeywords").val();
        
        if (!CheckInput(keywords) && !CheckInput(keywords1)) {
            layer.msg("Keyword contains special characters, please re-enter!");
            return false;
        }
        if (keywords == "") {
            layer.msg("Please input keywords!");
        }
        else {
            $('#topformBySearch').submit();
        }
        return false;
    })
})

function CheckInput(obj) {
    var pattern = new RegExp("[`~!@#$^&*()=|{}':;',\\[\\].<>/?~！@#￥……&*（）——|{}【】‘；：”“'。，、？]")
    if (pattern.test(obj)) {
        return false;
    }
    return true;
}