function CheckValue() {
    var condition = "", $companyName = $("#CompanyName"), $category = $("#Category"), $universe = $("#Universe");
    if ($companyName.getSelectedIndex() > 0)
        condition = String.format("{0}CompanyName=N'{1}' and  ", condition, $companyName.getSelectedText());
    if ($category.getSelectedIndex() > 0)
        condition = String.format("{0}Category=N'{1}' and  ", condition, $category.getSelectedText());
    if ($universe.getSelectedIndex() > 0)
        condition = String.format("{0}Universe like N'%{1}%' and  ", condition, $universe.getSelectedText());
    if ($("#TNA").getSelectedIndex() > 0)
        condition = String.format("{0} {1} ", condition, $("#TNA").val());
    if ($("#NAV").getSelectedIndex() > 0)
        condition = String.format("{0} {1} ", condition, $("#NAV").val());
    if (condition != "") {
        $("#hFundSearch").val(condition);
        return true;
    }
    alert("请选择一个筛选条件!");
    return false;
}