function turn_on(id) {
  document.getElementById(id).style.display="block";
}

function turn_off(id) {
  document.getElementById(id).style.display="none";
}

function getcode(content){
  var tmp ="";
  for(var u=0; u < content.length; u++)
  {
  var r = content.charCodeAt(u);
  tmp+= String.fromCharCode(r+3);
  }
  return tmp;
}

function CheckPswd() {
    pswd_in = document.getElementById("pswd").value;
    to_compare = getcode(pswd_in);
    to_compare = getcode(to_compare);
    if(to_compare == "{tozkj3}k3yzgtj"){
      document.getElementById("list").style.display="block";
      document.getElementById("ini").style.display="none";
      document.getElementById("content_MPEH").style.display="block";
      document.getElementById("out_put").style.display="block";

      document.getElementById("list_ques").style.color="#000000";
      document.getElementById("list_ques").style.backgroundColor = "white";
      document.getElementById("list_MPEH").style.color="white";
      document.getElementById("list_MPEH").style.backgroundColor = "#0099FF";
      document.getElementById("list_MSC").style.color="#000000";
      document.getElementById("list_MSC").style.backgroundColor = "white";



    } else {
      alert("请再次输入")
    }
}


function show_ques(){
  document.getElementById("ques").style.display="block";
  document.getElementById("list_ques").style.color="red";
  document.getElementById("content_MPEH").style.display="none";
  document.getElementById("content_MSC").style.display="none";

  document.getElementById("list_ques").style.color="white";
  document.getElementById("list_ques").style.backgroundColor = "#0099FF";
  document.getElementById("list_MPEH").style.color="#000000";
  document.getElementById("list_MPEH").style.backgroundColor = "white";
  document.getElementById("list_MSC").style.color="#000000";
  document.getElementById("list_MSC").style.backgroundColor = "white";


  document.getElementById("re").innerHTML="";
  document.getElementById("error").innerHTML="";
}

function show_MPEH(){
  document.getElementById("ques").style.display="none";
  document.getElementById("content_MPEH").style.display="block";
  document.getElementById("content_MSC").style.display="none";

  document.getElementById("list_ques").style.color="#000000";
  document.getElementById("list_ques").style.backgroundColor = "white";
  document.getElementById("list_MPEH").style.color="white";
  document.getElementById("list_MPEH").style.backgroundColor = "#0099FF";
  document.getElementById("list_MSC").style.color="#000000";
  document.getElementById("list_MSC").style.backgroundColor = "white";

  document.getElementById("re").innerHTML="";
  document.getElementById("error").innerHTML="";

}

function show_MSC(){
  document.getElementById("ques").style.display="none";
  document.getElementById("content_MPEH").style.display="none";
  document.getElementById("content_MSC").style.display="block";

  document.getElementById("list_ques").style.color="#000000";
  document.getElementById("list_ques").style.backgroundColor = "white";
  document.getElementById("list_MPEH").style.color="#000000";
  document.getElementById("list_MPEH").style.backgroundColor = "white";
  document.getElementById("list_MSC").style.color="white";
  document.getElementById("list_MSC").style.backgroundColor = "#0099FF";

  document.getElementById("re").innerHTML="";
  document.getElementById("error").innerHTML="";
}


function alert_his(){
      alert('（1）发病前14天内有武汉市及周边地区，或其他有病例报告社区的旅行史或居住史;\n' +
      '（2）发病前14天内与新型冠状病毒感染者（核酸检测阳性者）有接触史；\n' +
      '（3）发病前14天内曾接触过来自武汉市及周边地区，或来自有病例报告社区的发热或有呼吸道症状的患者；\n' +
      '（4）聚集性发病（2周内在小范围如家庭、办公室、学校班级等场所，出现2例及以上发热和/或呼吸道症状的病例）。');
    }

function alert_sym(){
      alert('（1）发热和或呼吸道症状;\n'+
      '（2）具有新型冠状病毒肺炎影像学特征；\n' +
      '（3）发病早期白细胞总数正常或降低，淋巴细胞计数正常或减少。');
    }

function alert_pop(){
      alert('确诊患者、疑似患者、有湖北经历的人员');
    }

function myFunction_MPEH() {
      // first, check the input
        var age, text, area_v, protection_v, vaso_v, nonvaso_v;

        age = document.getElementById("age_MPEH").value;
        if (isNaN(age) || age < 1 || age > 100) {
            text = "年龄输入错误";
            document.getElementById("error").innerHTML = text;
            document.getElementById("re").innerHTML = "";
        } else {
            // text = "输入正确";
            document.getElementById("error").innerHTML = '';
            area_v = document.getElementById("area_MPEH").value;
            protect_v = document.getElementById("protect_MPEH").value;
            vaso_v = document.getElementById("vaso_MPEH").value;
            nonvaso_v = document.getElementById("nonvaso_MPEH").value;
            if (age < 45) {
              age_v = 0;
            } else {
              age_v = 1;
            }

           logit = (-1)*2.0815 + 0.8906*age_v + 0.8095*parseFloat(area_v) + 1.2816*parseFloat(protect_v) + 0.7870*parseFloat(vaso_v) + 0.9590*parseFloat(nonvaso_v);
            //alert(logit)
            tmp = Math.exp(logit) / (1 + Math.exp(logit))
            document.getElementById("re").innerHTML = "发病风险：" + tmp.toFixed(2);
        }
    }



    function myFunction_MSC() {
          // first, check the input
            var age, text, area_v, protection_v, fatigue_v, diarr_v;

            age = document.getElementById("age_MSC").value;
            if (isNaN(age) || age < 1 || age > 100) {
                text = "年龄输入错误";
                document.getElementById("error").innerHTML = text;
                document.getElementById("re").innerHTML = "";
            } else {
                // text = "输入正确";
                document.getElementById("error").innerHTML = '';
                area_v = document.getElementById("area_MSC").value;
                protect_v = document.getElementById("protect_MSC").value;
                fatigue_v = document.getElementById("fatigue_MSC").value;
                diarr_v = document.getElementById("diarr_MSC").value;
                if (age < 50) {
                  age_v = 0;
                } else {
                  age_v = 1;
                }

               logit = (-1)*1.8122 + 0.3192*age_v + 1.1298*parseFloat(area_v) + 2.0594*parseFloat(protect_v) + 0.9798*parseFloat(fatigue_v) +  2.5197*parseFloat(diarr_v);
                //alert(logit)
                tmp = Math.exp(logit) / (1 + Math.exp(logit))
                document.getElementById("re").innerHTML = "确诊风险：" + tmp.toFixed(2);
            }
        }