function calculateBmi() {
var weight = document.techBMI.weight.value
var height = document.techBMI.height.value
if(weight > 0 && height > 0){
var finalBmi = weight/(height*height*0.0001)
document.techBMI.bmi.value = finalBmi.toFixed(3);
if(finalBmi < 18.5){
document.techBMI.meaning.value = "ÀúüÁßÀÔ´Ï´Ù."
    }
if(finalBmi > 18.5 && finalBmi < 23){
document.techBMI.meaning.value = "Á¤»óüÁßÀÔ´Ï´Ù."
    }
if(finalBmi > 23 && finalBmi < 25){
document.techBMI.meaning.value = "°úüÁßÀÔ´Ï´Ù."
    }
if(finalBmi > 25 &&  finalBmi <30){
document.techBMI.meaning.value = "°æµµºñ¸¸ÀÔ´Ï´Ù"
    }
if(finalBmi > 30){
document.techBMI.meaning.value = "Áߵºñ¸¸ÀÔ´Ï´Ù."
    }
    }
    else{
    alert("´Ù½Ã Çѹø È®ÀÎÇØÁÖ¼¼¿ä.")
    }


    }