function getCookie(name)//取cookies函数        
{
    var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
    if (arr != null) return unescape(arr[2]); return null;

}
function check_comments() {
    if (document.getElementById("title_comments").value.length == 0) {
        alert("please enter name!");
        document.getElementById("title_comments").focus();
        return false;
    }
    if (document.getElementById("email_comments").value.length == 0) {
        alert("please enter email!");
        document.getElementById("email_comments").focus();
        return false;
    }
    if (document.getElementById("questioncontent_comments").value.length == 0) {
        alert("please enter question!");
        document.getElementById("questioncontent_comments").focus();
        return false;
    }
    if (document.getElementById("code").value == '') {
        alert("please enter code!");
        document.getElementById("code").focus();
        return false;
    }
    if (document.getElementById("code").value.toLowerCase() != getCookie("CheckCode").toLowerCase()) {
        alert("please check code!");
        document.getElementById("code").focus();
        return false;
    }
}
document.write("<form method=\"post\" name=\"talk\" action=\"/book/book_add_comments.aspx\" target=\"_self\"><div class=\"system_top system_top4\"><p class=\"system_q system_q2\"><span class=\"system_q_left system_q_left2\">My Questions</span> *You can require customized or tailor-made tours</p><div class=\"system_n\"><p class=\"p1 p2\">Name:<input type=\"text\" name=\"title_comments\" id=\"title_comments\" class=\"name name3\" /></p><p class=\"p3\">E-mail:<input type=\"text\" name=\"email_comments\" id=\"email_comments\" class=\"email email3\" /></p><p><textarea name=\"questioncontent_comments\" id=\"questioncontent_comments\" class=\"ka ka4\"></textarea></p><p class=\"yzmlj\">Verification Code:<input type=\"text\" name=\"code\" id=\"code\" class=\"yzm yzm3\" /><a href=\"#\" onclick=\"javascript:document.getElementById('img').src='/loginCode.ashx?rid=' + Math.random();return false\"><img src=\"/loginCode.ashx\" onclick=\"this.src='/loginCode.ashx?rid='+Math.random()\" id=\"img\" border=\"0\"  /></a></p><p><input type=\"submit\" value=\"Submit\" onclick=\"return check_comments()\" class=\"sub\" /><input type=\"reset\" value=\"Cancel\" class=\"can\" /><input id=\"channel_comments\" name=\"channel_comments\" value=\"Tibet default Comments\" type=\"hidden\" /><input id=\"text_comments\" name=\"text_comments\" value=\"Tibet Default Home\" type=\"hidden\" /></p></div></div></form>");