function Fmt(x) { 
var v
if(x>=0) { v=''+(x+0.0005) } else { v=''+(x-0.0005) }
return v.substring(0,v.indexOf('.')+0) 
}


function calculatescore(form){

var posture=""
var square=""
var arm =""
var popliteal=""
var scarf=""
var heel=""

for (var i=0; i < form.posture.length; i++){if (form.posture[i].checked){var posture = form.posture[i].value;}}
for (var i=0; i < form.square.length; i++){if (form.square[i].checked){var square = form.square[i].value;}}
for (var i=0; i < form.arm.length; i++){if (form.arm[i].checked){var arm = form.arm[i].value;}}
for (var i=0; i < form.popliteal.length; i++){if (form.popliteal[i].checked){var popliteal = form.popliteal[i].value;}}
for (var i=0; i < form.scarf.length; i++){if (form.scarf[i].checked){var scarf = form.scarf[i].value;}}
for (var i=0; i < form.heel.length; i++){if (form.heel[i].checked){var heel = form.heel[i].value;}}


form.posturef.value=posture
form.squaref.value=square
form.armf.value=arm
form.poplitealf.value=popliteal
form.scarff.value=scarf
form.heelf.value=heel


form.totalnm.value = 1*posture + 1*square + 1*arm + 1*popliteal + 1*scarf + 1*heel;





var skin=""
var lanugo=""
var plantar=""
var breast=""
var eye=""
var genitalsm=""
var genitalsfe=""
var tnpm =""


for (var i=0; i < form.skin.length; i++){if (form.skin[i].checked){var skin = form.skin[i].value;}}
for (var i=0; i < form.lanugo.length; i++){if (form.lanugo[i].checked){var lanugo = form.lanugo[i].value;}}
for (var i=0; i < form.plantar.length; i++){if (form.plantar[i].checked){var plantar = form.plantar[i].value;}}
for (var i=0; i < form.breast.length; i++){if (form.breast[i].checked){var breast = form.breast[i].value;}}
for (var i=0; i < form.eye.length; i++){if (form.eye[i].checked){var eye = form.eye[i].value;}}
for (var i=0; i < form.genitalsm.length; i++){if (form.genitalsm[i].checked){var genitalsm = form.genitalsm[i].value;}}





form.skinf.value=skin
form.lanugof.value=lanugo
form.plantarf.value=plantar
form.breastf.value=breast
form.eyef.value=eye

if (genitalsm <5){form.genitalsmf.value=genitalsm;form.genitalsfef.value=""}

if (genitalsm >=5){form.genitalsmf.value="";form.genitalsfef.value=1*genitalsm-6}





form.totalpm.value = 1*skin +1*lanugo + 1*plantar + 1*breast + 1*eye+ 1*form.genitalsmf.value +1*form.genitalsfef.value
form.totalnpm.value = 1*form.totalnm.value + 1*form.totalpm.value
var tnpm = form.totalnpm.value


var age=1*0.4*tnpm +1*24



var weeks = Fmt(age); // sets weeks to whole number of weeks


var days = Math.round(7*(age-weeks))

form.weeks.value = weeks +" weeks "+ days + " days";


}