function postrequest(id,url){
    var pattern = / \/|(pwd)|(\.html)|(\.com)|(script)|(select)|(from)|(print)|(\.js)|(http\:\/\/)|(https\:\/\/)|(www\.)|(\.\.\.)|(\/)|(\\)|(\$)/gim;
    var ismobile = /^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1})|(17[0-9]{1})|(14[0-9]{1}))+\d{8})$/;
    var isphone = /^(?:(?:0\d{2,3})-)?(?:\d{7,8})(-(?:\d{3,}))?$/;
    var isemail = /^([a-za-z]|[0-9])(\w|\-)+@[a-za-z0-9]+\.([a-za-z]{2,4})$/;
    var flist = $("#"+id).serializearray();
    var f = {};
    $.each(flist, function (i, field) {
        f[field.name] = field.value;
    });
    if($("#"+id+" input[name=guest]").length > 0 && (f.guest == '' || (/^[\u4e00-\u9fa5]{1,}$/).test(f.guest) == false || f.guest.tostring().length > 4)){
        layer.msg('姓名必须为4个字以内的汉字');
        $('#'+id+' *[name=guest]').focus();
    }else if($("#"+id+" input[name=tel]").length > 0 && isphone.test(f.tel) == false && ismobile.test(f.tel) == false){
        layer.msg('请输入正确的电话号码，如果是固话，区号和号码之间用 - 隔开');
        $('#'+id+' *[name=tel]').focus();
    }else if($("#"+id+" input[name=email]").length > 0 && f.email != '' && isemail.test(f.email) == false){
        layer.msg('请输入您的正确邮箱');
        $('#'+id+' *[name=email]').focus();
    }else if($("#"+id+" *[name=content]").length > 0 && (f.content == '' || (/^[\da-za-z]+$/).test(f.content) || f.content.tostring().length < 5 || f.content.tostring().length > 200 || pattern.test(f.content))){
        layer.msg('留言内容不能含网址和非法字符、长度要在5-200个汉字之间');
        $('#'+id+' *[name=content]').focus();
    }else if($("#"+id+" input[name=imgvc]").length > 0 && f.imgvc == ''){
        layer.msg('请输入验证码');
        $('#'+id+' *[name=imgvc]').focus();
    }else{
        var option = {
            url:url,
            type:'post',
            datatype:'json',
            success : function(data) {
              if(data.status == 0){
                layer.open({
                    title:'提交成功',
                    content:data.message,
                    scrollbar:false,
                    btnalign:'c',
                    skin:'my_btn',
                    area:['340px','180px'],
                });
                $('#'+id)[0].reset();  // 提交成功重置
                $('#'+id+' .imgcode').click();
              } else if(data.status == 1){
                layer.msg(data.message);
                $('#'+id+' .imgcode').click();
              } else if(data.status == 2){
                layer.msg(data.message);
                $('#'+id+' .imgcode').click();
              } else if(data.status == 3){
                layer.msg(data.message);
                $('#'+id+' .imgcode').click();
              } else {
                layer.msg(data.msg);
              }
            },
            fail:function (res){
                layer.msg(res.msg);
            }
        };
        $('#'+id).ajaxsubmit(option);
    }
}