var hyper = {};
hyper.currentTab = 1;
hyper.enableAlert = 0;

function hyperMyalert(string) {
  if(hyper.enableAlert==1) {
    alert(string);
  }
}

function hyperStripAlphaChars(pstrSource) {
  var m_strOut = new String(pstrSource);
  m_strOut = m_strOut.replace(/[^0-9]/g, '');
  return m_strOut;
}

function hyperCheckInput(type) {
  if(type==1) {
    document.getElementById('sbp').value = hyperStripAlphaChars(document.getElementById('sbp').value);
  } else {
    document.getElementById('dbp').value = hyperStripAlphaChars(document.getElementById('dbp').value);
  }
}

function hyperCheckVariables(mysbp, mydbp) {
  var errorType = 0;
  if(isNaN(mysbp)==false) {
    if(mysbp>200) {
      document.getElementById('sbp').value = 200;
      mysbp = 200;
      //hyperMyalert("SBP value cannot be greater than 200");
      //errorType =  1;
    } else if(mysbp<0) {
      document.getElementById('sbp').value = 0;
      mysbp = 0;
      //hyperMyalert("SBP value cannot be less than 0");
      //errorType =  1;
    }
  } else {
    mysbp = 0;
    document.getElementById('sbp').value = 0;
    hyperMyalert("Please enter a SBP value");
    errorType =  1;
  }

  if(isNaN(mydbp)==false) {
    if(mydbp>200) {
      document.getElementById('dbp').value = 200;
      mydbp = 200;
      //hyperMyalert("DBP value cannot be greater than 200");
      //errorType =  1;
    }
    else if(mydbp<0) {
      mydbp = 0;
      document.getElementById('dbp').value = 0;
      //hyperMyalert("DBP value cannot be less than 0");
      //errorType =  1;
    }
  } else {
    mydbp = 0;
    document.getElementById('dbp').value = 0;
    hyperMyalert("Please enter a DBP value");
    errorType =  1;
  }

  if(mydbp>=mysbp) {
    if(mysbp>4) {
      mydbp = mysbp-5;
      document.getElementById('dbp').value = mysbp-5;
    } else {
      mydbp = 0;
      document.getElementById('dbp').value = 0;
    }
    //hyperMyalert("DBP value cannot be greater than SBP");
    //errorType =  2;
  }
  return errorType;
}

function hyperBlueGraph(blue) {
  return Math.floor(blue);
}

function hyperRedGraph(red) {
  return Math.floor(red);
}

function hyperFillTable(counter, type) {
  if(type==2) {
    document.getElementById("redimg1").height = counter;
  } else {
    document.getElementById("blueimg1").height = counter;
  }
}

function hyperCompute() {
  var mysbp = parseInt(document.getElementById('sbp').value);
  var mydbp = parseInt(document.getElementById('dbp').value);
  var type = hyperCheckVariables(mysbp, mydbp);

  var mysbp = parseInt(document.getElementById('sbp').value);
  var mydbp = parseInt(document.getElementById('dbp').value);
  var bb = hyperBlueGraph(mydbp);
  var rr = hyperRedGraph(mysbp);
  hyperFillTable(bb,1);
  hyperFillTable(rr,2);
  hyperSelectImage();
}

function hyperChangeTab(id) {
  hyper.currentTab = id;
  hyperSelectImage();
}

function hyperSelectImage() {
  var mysbp = parseInt(document.getElementById('sbp').value);
  var mydbp = parseInt(document.getElementById('dbp').value);
  document.getElementById('jnc1').style.display = "none";
  document.getElementById('jnc2').style.display = "none";
  document.getElementById('jnc3').style.display = "none";
  document.getElementById('jnc4').style.display = "none";
  document.getElementById('esh1').style.display = "none";
  document.getElementById('esh2').style.display = "none";
  document.getElementById('esh3').style.display = "none";
  document.getElementById('esh4').style.display = "none";
  document.getElementById('esh5').style.display = "none";
  document.getElementById('esh6').style.display = "none";
  document.getElementById('esh7').style.display = "none";
  document.getElementById('who1').style.display = "none";
  document.getElementById('who2').style.display = "none";
  document.getElementById('who3').style.display = "none";
  document.getElementById('who4').style.display = "none";
  document.getElementById('who5').style.display = "none";
  document.getElementById('who6').style.display = "none";
  document.getElementById('who7').style.display = "none";
  document.getElementById('who8').style.display = "none";
  document.getElementById('who9').style.display = "none";
  if(hyper.currentTab==1) {
    if(mysbp>=160 || mydbp>=100) {
      document.getElementById('jnc4').style.display = "block";
      return;
    }
    if(mysbp>=140 && mydbp>=90 && mydbp<=99) {
      document.getElementById('jnc3').style.display = "block";
      return;
    }
    if(mysbp>=120 && mydbp>=80 && mydbp<=89) {
      document.getElementById('jnc2').style.display = "block";
      return;
    }
    if(mysbp<120 || mydbp<80) {
      document.getElementById('jnc1').style.display = "block";
      return;
    }
  } else if(hyper.currentTab==2) {
    if(mysbp>=180 || mydbp>=110) {
      document.getElementById('esh6').style.display = "block";
      return;
    }
    if(mysbp>=160 && mydbp>=100 && mydbp<=109) {
      document.getElementById('esh5').style.display = "block";
      return;
    }
    if(mysbp>=140 && mydbp>=90 && mydbp<=99) {
      document.getElementById('esh4').style.display = "block";
      return;
    }
    if(mysbp>=140 && mydbp<90) {
      document.getElementById('esh7').style.display = "block";
      return;
    }
    if(mysbp>=130 && mydbp>=85 && mydbp<=89) {
      document.getElementById('esh3').style.display = "block";
      return;
    }
    if(mysbp>=120 && mydbp>=80 && mydbp<=84) {
      document.getElementById('esh2').style.display = "block";
      return;
    }
    if(mysbp<120 || mydbp<80) {
      document.getElementById('esh1').style.display = "block";
      return;
    }
  } else if(hyper.currentTab==3) {
    if(mysbp>=180 || mydbp>=110) {
      document.getElementById('who7').style.display = "block";
      return;
    }
    if(mysbp>=160 && mydbp>=100 && mydbp<=109) {
      document.getElementById('who6').style.display = "block";
      return;
    }
    if(mysbp>=140 && mydbp>=95 && mydbp<=99) {
      document.getElementById('who4').style.display = "block";
      return;
    }
    if(mysbp>=140 && mydbp>=90 && mydbp<=94) {
      document.getElementById('who5').style.display = "block";
      return;
    }
    if(mysbp>=149 && mydbp<90) {
      document.getElementById('who8').style.display = "block";
      return;
    }
    if(mysbp>=140 && mysbp<=148 && mydbp<90) {
      document.getElementById('who9').style.display = "block";
      return;
    }
    if(mysbp>=130 && mydbp>=85) {
      document.getElementById('who3').style.display = "block";
      return;
    }
    if(mysbp>=120 && mydbp>=80 && mydbp<=84) {
      document.getElementById('who2').style.display = "block";
      return;
    }
    if(mysbp<120 || mydbp<80) {
      document.getElementById('who1').style.display = "block";
      return;
    }
  }
  return;
}