ARR

<script language="JavaScript" type="text/JavaScript">
function hitungARR() {
    var myForm  = document.form1;
    var RNA     = parseInt(myForm.txt_Rna.value);
    var RNO     = parseInt(myForm.txt_Rno.value);
    var ARR     = (RNA/RNO).toFixed(2);

    if (ARR > 0) {
        myForm.txt_ARR.value = ARR;
    } else {
        myForm.txt_ARR.value = 0;
    }
}
</script>