<!--
function Creat() {
  crea = document.forms[0].Crea.value;
  uni = document.forms[0].Uni.value;
  kilos = document.forms[0].Kilos.value;
  uni2 = document.forms[0].Uni2.value;
  edad = document.forms[0].Eda.value;
  sex = document.forms[0].Sex.value;
  crea = CambioComa(crea);
  kilos = CambioComa(kilos);
  edad = CambioComa(edad);
  if (crea == "" || kilos == "" || edad == "" || sex == "Nada") {
    alert("Faltan datos");
  }
  else {
    if (Comprobar(crea, kilos, edad) || crea == "." || kilos == ".") {
      alert("Datos incorrectos");
    }
    else {
    parcial1 = 140-eval(edad);
      if (uni == "uno") {
      parcial2 = eval(crea)*72;
      }
      else {
        if (uni == "dos") {
        parcial2 = eval(crea)*72/10;
        }
        else {
        parcial2 = eval(crea)*72*0.0113;
        }
      }
      if (uni2 == "uno") {
      parcial3 = eval(kilos);
      }
      else {
      parcial3 = eval(kilos)/2.204622;
      }
      if (sex == "Hombre") {
      resulta = (Math.round(parcial1*parcial3*100/parcial2))/100;
      }
      else {
      resulta = (Math.round(parcial1*parcial3*0.85*100/parcial2))/100;
      }
      document.forms[0].result.value = resulta;
      if (resulta < 25) {
        document.forms[0].result1.value = "Insuficiencia renal grave";
      }
      else {
        if (resulta < 50) {
          document.forms[0].result1.value = "Insuficiencia renal moderada";
        }
        else {
          if ((resulta < 80 && sex == "Hombre")||(resulta < 75 && sex == "Mujer")) {
            document.forms[0].result1.value = "Insuficiencia renal leve";
          }
          else {
            document.forms[0].result1.value = "Función renal normal";
          }
        }
      }      
    }
  }
}

function Comprobar(crea, kilo, edad) {
var k = 0;
var l = 0;
var m = 0;
var todo = crea+kilo+edad;
var numeros = "0123456789.";
  for (i = 0;  i < crea.length;  i++) {
    if (crea.charAt(i) == ".") {
    k++;
    }
  }
  if (k > 1) {
  return true;
  }
  for (i = 0;  i < kilo.length;  i++) {
    if (kilo.charAt(i) == ".") {
    l++;
    }
  }
  if (l > 1) {
  return true;
  }
  for (i = 0;  i < edad.length;  i++) {
    if (edad.charAt(i) == ".") {
    m++;
    }
  }
  if (m > 0) {
  return true;
  }
  for (i = 0;  i < todo.length;  i++) {
    for (j = 0;  j < numeros.length;  j++) {
      if (todo.charAt(i) == numeros.charAt(j)) {
      break;
      }
    }
    if (j == numeros.length) {
    return true;
    }
  }
return false;
}

function CambioComa(num) {
  num2 = "";
  for (i = 0;  i < num.length;  i++) {
    if (num.charAt(i) == ",") {
      num2 = num2+".";
    }
    else {
      if (num.charAt(i) == " ") {
        num2 = num2;
      }
      else {
        num2 = num2+num.charAt(i);
      }
    }
  }
  return num2;
}

function Borrar() {
 document.forms[0].Crea.value = "";
 document.forms[0].Kilos.value = "";
 document.forms[0].Eda.value = "";
 document.forms[0].Sex.value = "Nada";
 document.forms[0].result.value = "";
 document.forms[0].result1.value = "";
 document.forms[0].Uni.value = "uno";
 document.forms[0].Uni2.value = "uno";
}

function move_in(img_name,img_src) {
document[img_name].src=img_src;
}

function move_out(img_name,img_src) {
document[img_name].src=img_src;
}
// -->