<!--hide
//Written by Manuel Villanueva

function ideal(form) {
if (form.sex[0].checked) {   
var sex = 50;
}
else {
var sex = 45.5;
}
var x = form.ht.value - 60;
var IBW = x * 2.3 + sex;
var ABW = 0.4*(form.wt.value - IBW) + IBW;
var per = IBW * 0.3 + IBW;
form.IBW.value = Math.round(10*IBW)/10;
form.ibw_lbs.value = Math.round(10*IBW*2.2)/10;
form.ABW.value = Math.round(10*ABW)/10;
form.per.value = Math.round(10*per)/10;

//alerts
if((form.wt.value==null)||(form.wt.value=="")||(isNaN(form.wt.value))){
alert('Please enter a weight with numbers only. Use a period for decimal place.');
form.wt.focus();
form.wt.select();
return false
}
//alert
if((form.ht.value==null)||(form.ht.value=="")||(isNaN(form.ht.value))){
alert('Please enter a height with numbers only. Use a period for decimal place.');
form.ht.focus();
form.ht.select();
return false
}
if(form.ht.value <60){
alert('Height must be more than 60 inches');
form.ht.focus();
form.ht.select();
return false
}
}
//unhide-->