<!--hide
//Written by Manuel Villanueva

function npo(form) {
var answer = 2 * form.hrs.value * form.kg.value / 2;
var second = 2 * form.hrs.value * form.kg.value / 4;
var third = 2 * form.hrs.value * form.kg.value / 4;
form.answer.value = Math.round(answer);
form.second.value = Math.round(second);
form.third.value = Math.round(third);

//if statements--
if((form.kg.value==null)||(form.kg.value=="")||(isNaN(form.kg.value))){
alert('Please enter a weight in kilograms with numbers only. Use a period for decimal place.');
form.kg.focus();
form.kg.select();
return false
}
if((form.hrs.value==null)||(form.hrs.value=="")||(isNaN(form.hrs.value))){
alert('Please the hours NPO with numbers only. Use a period for decimal place.');
form.hrs.focus();
form.hrs.select();
return false
}
}
//unhide-->