function quantity(form) {
gallons=form.gallons.value;
liters=form.liters.value;
if (gallons == "")
form.gallons.value=Math.round((liters*.26)*10)/10;

if (liters == "")
form.liters.value=Math.round((gallons*3.79)*10)/10;
validate(form)

}

function validate(form) {
var gallons=form.gallons.value;
var liters=form.liters.value;
if (gallons == "")
window.alert("Please enter the quantity of must, juice or wine");
calculate(form)
}

function calculate(form) {
var gallons=form.gallons.value;

var bentonitegrams=(gallons*1.5);
var bentonitegramsround=Math.round(bentonitegrams);
var bentoniteounces=(bentonitegrams*.0353)
var bentoniteouncesround=Math.round(bentoniteounces*10)/10;
var bentonitetsps=(bentonitegrams/3.4);
var bentonitetspsfull=Math.floor(bentonitetsps);
var bentonitetspsdec=(bentonitetsps-bentonitetspsfull);
var bentonitemilliliters=(bentonitetsps*4.93)
var bentonitemillilitersround=Math.round(bentonitemilliliters*10)/10

var gelatingrams=(gallons*1);
var gelatingramsround=Math.round(gelatingrams);
var gelatinounces=(gelatingrams*.0353)
var gelatinouncesround=Math.round(gelatinounces*10)/10;
var gelatintsps=(gelatingrams/3.2);
var gelatintspsfull=Math.floor(gelatintsps);
var gelatintspsdec=(gelatintsps-gelatintspsfull);
var gelatinmilliliters=(gelatintsps*4.93)
var gelatinmillilitersround=Math.round(gelatinmilliliters*10)/10

var eggmilliliters=Math.round(gallons*1.25);
var eggtsps=(eggmilliliters*.2);
var eggtspsfull=Math.floor(eggtsps);
var eggtspsdec=(eggtsps-eggtspsfull);
var egg=(eggmilliliters*0.041667);
var eggfull=Math.floor(egg);
var eggdec=(egg-eggfull);

var oakgrams=(gallons*25);
var oakgramsround=Math.round(oakgrams);
var oakounces=(oakgrams*.0353)
var oakouncesround=Math.round(oakounces*10)/10;
var oakcups=(oakgrams/70);
var oakcupsfull=Math.floor(oakcups);
var oakcupsdec=(oakcups-oakcupsfull);
var oakliters=(oakcups*.2365882)
var oaklitersround=Math.round(oakliters*10)/10

if (bentonitegramsround >0)  
form.bentonitegramsround.value=bentonitegramsround;
else
form.bentonitegramsround.value=0;

if (bentoniteouncesround >0)  
form.bentoniteouncesround.value=bentoniteouncesround;
else
form.bentoniteouncesround.value=0;

if (bentonitemillilitersround >0)  
form.bentonitemillilitersround.value=bentonitemillilitersround;
else
form.bentonitemillilitersround.value=0;

if (bentonitetspsfull <1)
bentonitetspsfull=""
if (bentonitetspsdec >.9)
form.bentonitetspsfraction.value=bentonitetspsfull+1;
else if (bentonitetspsdec >.65)
form.bentonitetspsfraction.value=bentonitetspsfull+"  3/4";
else if (bentonitetspsdec >.4)
form.bentonitetspsfraction.value=bentonitetspsfull+"  1/2";
else if (bentonitetspsdec >.2)
form.bentonitetspsfraction.value=bentonitetspsfull+"  1/4";
else if (bentonitetspsdec >.1)
form.bentonitetspsfraction.value=bentonitetspsfull+"  1/8";
else
form.bentonitetspsfraction.value=bentonitetspsfull;
if (bentonitegramsround <1)
form.bentonitetspsfraction.value=0;

if (gelatingramsround >0)  
form.gelatingramsround.value=gelatingramsround;
else
form.gelatingramsround.value=0;

if (gelatinouncesround >0)  
form.gelatinouncesround.value=gelatinouncesround;
else
form.gelatinouncesround.value=0;

if (gelatinmillilitersround >0)  
form.gelatinmillilitersround.value=gelatinmillilitersround;
else
form.gelatinmillilitersround.value=0;

if (gelatintspsfull <1)
gelatintspsfull=""
if (gelatintspsdec >.9)
form.gelatintspsfraction.value=gelatintspsfull+1;
else if (gelatintspsdec >.65)
form.gelatintspsfraction.value=gelatintspsfull+"  3/4";
else if (gelatintspsdec >.4)
form.gelatintspsfraction.value=gelatintspsfull+"  1/2";
else if (gelatintspsdec >.2)
form.gelatintspsfraction.value=gelatintspsfull+"  1/4";
else if (gelatintspsdec >.1)
form.gelatintspsfraction.value=gelatintspsfull+"  1/8";
else
form.gelatintspsfraction.value=gelatintspsfull;
if (gelatingramsround <1)
form.gelatintspsfraction.value=0;

if (gelatinmillilitersround >0)  
form.gelatinmillilitersround.value=gelatinmillilitersround;
else
form.gelatinmillilitersround.value=0;



if (eggmilliliters >0)  
form.eggmilliliters.value=eggmilliliters;
else
form.eggmilliliters.value=0;

if (eggtspsfull <1)
eggtspsfull=""
if (eggtspsdec >.9)
form.eggtspsfraction.value=eggtspsfull+1;
else if (eggtspsdec >.65)
form.eggtspsfraction.value=eggtspsfull+"  3/4";
else if (eggtspsdec >.4)
form.eggtspsfraction.value=eggtspsfull+"  1/2";
else if (eggtspsdec >.2)
form.eggtspsfraction.value=eggtspsfull+"  1/4";
else if (eggtspsdec >.1)
form.eggtspsfraction.value=eggtspsfull+"  1/8";
else
form.eggtspsfraction.value=eggtspsfull;
if (eggmilliliters <1)
form.eggtspsfraction.value=0;

if (eggfull <1)
eggfull=""
if (eggdec >.9)
form.eggfraction.value=eggfull+1;
else if (eggdec >.65)
form.eggfraction.value=eggfull+"  3/4";
else if (eggdec >.4)
form.eggfraction.value=eggfull+"  1/2";
else if (eggdec >.2)
form.eggfraction.value=eggfull+"  1/4";
else if (eggdec >.1)
form.eggfraction.value=eggfull+"  1/8";
else
form.eggfraction.value=eggfull;
if (eggmilliliters <1)
form.eggfraction.value=0;



if (oakgramsround >0)  
form.oakgramsround.value=oakgramsround;
else
form.oakgramsround.value=0;

if (oakouncesround >0)  
form.oakouncesround.value=oakouncesround;
else
form.oakouncesround.value=0;

if (oaklitersround >0)  
form.oaklitersround.value=oaklitersround;
else
form.oaklitersround.value=0;

if (oakcupsfull <1)
oakcupsfull=""
if (oakcupsdec >.9)
form.oakcupsfraction.value=oaktspsfull+1;
else if (oakcupsdec >.65)
form.oakcupsfraction.value=oakcupsfull+"  3/4";
else if (oakcupsdec >.4)
form.oakcupsfraction.value=oakcupsfull+"  1/2";
else if (oakcupsdec >.2)
form.oakcupsfraction.value=oakcupsfull+"  1/4";
else if (oakcupsdec >.1)
form.oakcupsfraction.value=oakcupsfull+"  1/8";
else
form.oakcupsfraction.value=oakcupsfull;
if (oakgramsround <1)
form.oakcupsfraction.value=0;




}