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function roundit(which){
return Math.round(which*10000)/10000
}

function cmanthropometrie(){
with (document.biometrie){
feet.value = roundit(cm.value/30.48);
inch.value = roundit(cm.value/2.54);
yard.value = roundit(cm.value/91.44);
m.value = roundit(cm.value/100);
q.value = roundit(cm.value/355);
fathom.value = roundit(cm.value/(30.48*6));
chain.value = roundit(cm.value(66*30.48));
coud.value = roundit(cm.value/52.3607);
cable.value = roundit(cm.value/(120*6*30.48));
}
}

function inchanthropometrie(){
with (document.biometrie){
cm.value = roundit(inch.value*2.54);
feet.value = roundit(inch.value/12);
yard.value = roundit(inch.value/36);
m.value = roundit(inch.value*0.0254);
q.value = roundit(inch.value/139.75);
fathom.value = roundit(inch.value/72);
chain.value = roundit(inch.value/66*3);
coud.value = roundit(inch.value*(0.0254/0.5236));
cable.value = roundit(inch.value/120*6*12);
}
}

function feetanthropometrie(){
with (document.biometrie){
cm.value = roundit(feet.value*30.48);
inch.value = roundit(feet.value*12);
yard.value = roundit(feet.value/3);
m.value = roundit(feet.value*0.3048);
q.value = roundit(feet.value/11.646);
fathom.value = roundit(feet.value/6);
chain.value = roundit(feet.value/66);
coud.value = roundit(feet.value*(0.3048/0.5236));
cable.value = roundit(feet.value/720);
}
}

function yardanthropometrie(){
with (document.biometrie){
cm.value = roundit(yard.value*91.44);
inch.value = roundit(yard.value*36);
feet.value = roundit(yard.value*3);
m.value = roundit(yard.value*0.9144);
q.value = roundit(yard.value/3.882);
fathom.value = roundit(yard.value/2);
chain.value = roundit(yard.value/22);
coud.value = roundit(yard.value*(0.9144/0.5236));
cable.value = roundit(yard.value/120*2);
}
}

function manthropometrie(){
with (document.biometrie){
cm.value = roundit(m.value*100);
feet.value = roundit(m.value/0.3048);
inch.value = roundit(m.value/0.0254);
yard.value = roundit(m.value/0.9144);
q.value = roundit(m.value*0.2817);
fathom.value = roundit(m.value/(0.3048*6));
chain.value = roundit(m.value/(66*0.3048));
coud.value = roundit(m.value/0.5236);
cable.value = roundit(m.value/120*6*0.3048);
}
}

function qasabanthropometrie(){
with (document.biometrie){
cm.value = roundit(q.value*355);
feet.value = roundit(q.value/0.0859);
inch.value = roundit(q.value/0.0072);
yard.value = roundit(q.value/0.2576);
m.value = roundit(q.value*3.55);
fathom.value = roundit(q.value*(355/(30.48*6)));
chain.value = roundit(q.value*355/(30.48*66));
coud.value = roundit(q.value*(3.55/0.5236));
cable.value = roundit(q.value*355/120*6*30.48);
}
}

function fathomanthropometrie(){
with (document.biometrie){
cm.value = roundit(fathom.value*182.88);
feet.value = roundit(fathom.value*6);
inch.value = roundit(fathom.value*72);
yard.value = roundit(fathom.value*2);
m.value = roundit(fathom.value*1.8288);
q.value = roundit(fathom.value/(355/(30.48*6)));
chain.value = roundit(fathom.value/11);
coud.value = roundit(fathom.value/0.2863116785597);
cable.value = roundit(fathom.value/120);
}
}

function chainanthropometrie(){
with (document.biometrie){
cm.value = roundit(chain.value*66*30.48);
feet.value = roundit(chain.value*66);
inch.value = roundit(chain.value*66*12);
yard.value = roundit(chain.value*22);
m.value = roundit(chain.value*66*0.3048);
q.value = roundit(chain.value*66*30.48/355);
fathom.value = roundit(chain.value*11);
coud.value = roundit(chain.value*66*30.48/52.3607);
cable.value = roundit(chain.value*66/(120*6));
}
}

function coudeeanthropometrie(){
with (document.biometrie){
cm.value = roundit(coud.value*52.36);
feet.value = roundit(coud.value*(0.5236/0.3048));
inch.value = roundit(coud.value*(0.5236/0.0254));
yard.value = roundit(coud.value*(0.5236/0.9144));
m.value = roundit(coud.value*0.5236);
q.value = roundit(coud.value*(0.5236/3.55));
fathom.value = roundit(coud.value*3.49269720687096);
chain.value = roundit(coud.value*52.3607/(66*30.48));
cable.value = roundit(coud.value*52.3607/(120*6*30.48));
}
}
function cableanthropometrie(){
with (document.biometrie){
cm.value = roundit(cable.value*120*6*30.48);
feet.value = roundit(cable.value*120*6);
inch.value = roundit(cable.value*120*6*12);
yard.value = roundit(cable.value*120*2);
m.value = roundit(cable.value*120*6*0.3048);
q.value = roundit(cable.value*120*6*30.48/355);
fathom.value = roundit(cable.value*120);
chain.value = roundit(cable.value*120*6/66);
coud.value = roundit(cable.value*120*6*30.48/52.3607);
}
}
function kganthropometrie(){
with (document.biometrie){
gr.value = roundit(kg.value*1000);
oz.value = roundit(kg.value/0.028349);
lb.value = roundit(kg.value/0.453592);
grain.value = roundit(kg.value/0.00006479891);
quintal.value = roundit(kg.value/100);
}
}

function granthropometrie(){
with (document.biometrie){
kg.value = roundit(gr.value/1000);
oz.value = roundit(gr.value/28.349);
lb.value = roundit(gr.value/453.592);
grain.value = roundit(gr.value/0.06479891);
quintal.value = roundit(gr.value/(100*1000));
}
}

function ozanthropometrie(){
with (document.biometrie){
kg.value = roundit(oz.value*0.028349);
gr.value = roundit(oz.value*28.349);
lb.value = roundit(oz.value/16);
grain.value = roundit(oz.value*437.5);
quintal.value = roundit(oz.value*0.028349/100);
}
}

function lbanthropometrie(){
with (document.biometrie){
kg.value = roundit(lb.value*0.453592);
gr.value = roundit(lb.value*453.592);
oz.value = roundit(lb.value*16);
grain.value = roundit(lb.value*437.5*16);
quintal.value = roundit(lb.value*0.453592/100);
}
}

function grainanthropometrie(){
with (document.biometrie){
kg.value = roundit(grain.value*0.00006479891);
gr.value = roundit(grain.value*0.06479891);
oz.value = roundit(grain.value/437.5);
lb.value = roundit(grain.value/(437.5*16));
quintal.value = roundit(grain.value*0.00006479891/100);
}
}

function quintalanthropometrie(){
with (document.biometrie){
kg.value = roundit(quintal.value*100);
gr.value = roundit(quintal.value*100*1000);
oz.value = roundit(quintal.value*100/0.028349);
lb.value = roundit(quintal.value*100/0.453592);
grain.value = roundit(quintal.value*100/0.00006479891);
}
}

function celsiustemperature(){
with (document.biometrie){
fah.value = roundit(cel.value*1.8*1 + 32);
kel.value = roundit(cel.value*1 + 273);
}
}

function fahrenheittemperature(){
with (document.biometrie){
cel.value = roundit((fah.value*1 - 32)/1.8);
kel.value = roundit(((fah.value*1 - 32)/1.8)*1 + 273);
}
}

function kelvintemperature(){
with (document.biometrie){
cel.value = roundit(kel.value*1 - 273);
fah.value = roundit((kel.value - 273)*1.8+ 32);
}
}

function feddansurface(){
with (document.biometrie){
m2.value = roundit(fed.value*4200);
km2.value = roundit(fed.value*4200/1000000);
hec.value = roundit(fed.value*(4200/10000));
q2.value = roundit(fed.value*(1000/3));
are.value = roundit(fed.value*4200/100);
}
}

function metrecarresurface(){
with (document.biometrie){
fed.value = roundit(m2.value/4200);
hec.value = roundit(m2.value/10000);
km2.value = roundit(m2.value/1000000);
q2.value = roundit(m2.value/12.6);
are.value = roundit(m2.value/100);
}
}

function hectarsurface(){
with (document.biometrie){
m2.value = roundit(hec.value*10000);
km2.value = roundit(hec.value/100);
fed.value = roundit(hec.value*(10000/4200));
q2.value = roundit(hec.value*(10000/12.6));
are.value = roundit(hec.value*10000/100);
}
}

function kilometrecarresurface(){
with (document.biometrie){
m2.value = roundit(km2.value*1000000);
fed.value = roundit(km2.value*(1000000/4200));
hec.value = roundit(km2.value*100);
q2.value = roundit(km2.value*(1000000/12.6));
are.value = roundit(km2.value*(1000000/100));
}
}

function qassabacarresurface(){
with (document.biometrie){
m2.value = roundit(q2.value*12.6);
fed.value = roundit(q2.value*(3/1000));
hec.value = roundit(q2.value*(12.6/10000));
km2.value = roundit(q2.value*(12.6/1000000));
are.value = roundit(q2.value*12.6/100);
}
}

function aresurface(){
with (document.biometrie){
m2.value = roundit(are.value*100);
fed.value = roundit(are.value*100/4200);
hec.value = roundit(are.value*100/10000);
km2.value = roundit(are.value*100/1000000);
q2.value = roundit(are.value*100/12.6);
}
}