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function mod(div,base) {
 return Math.round(div - (Math.floor(div/base)*base));}
function calcBmi() {
 var w = document.bmi.size1.value * 1; var h = document.bmi.size2.value * 1; displaysize = h; var rvalue = true; if ( (w < 68) || (w > 127)) {
 alert ("Fehler bei der Dateneingabe. Bitte wiederholen Sie die Eingabe!"); document.forms[0].elements[0].select(); document.forms[0].elements[0].focus(); rvalue = false; }
 if ( ((h < 82) || (h > 155)) && (rvalue==true)) {
 alert ("Fehler bei der Dateneingabe. Bitte wiederholen Sie die Eingabe!"); document.forms[0].elements[1].select(); document.forms[0].elements[1].focus(); rvalue = false; }
 if (((h-8) < w) && (rvalue==true)) {
 alert ("Fehler bei der Dateneingabe. Überbrustweite muss mindestens 8cm größer sein als Unterbrustweite. Bitte wiederholen Sie die Eingabe!"); document.forms[0].elements[0].select(); document.forms[0].elements[0].focus(); rvalue = false; }
 if (((h-32) > w) && (rvalue==true)) {
 alert ("Fehler bei der Dateneingabe. Überbrustweite zu groß. Bitte wiederholen Sie die Eingabe!"); document.forms[0].elements[0].select(); document.forms[0].elements[0].focus(); rvalue = false; }
 if (rvalue) {
 size_ger = (50+Math.round((w-50)/5)*5); size1 = Math.round(((h-8+1)-w)/2); document.bmi.size_ger.value = size_ger; if (size1==1) size2_ger = "AAA" 
 else if (size1==2) size2_ger = "AA"
 else if (size1==3) size2_ger = "A"; else if (size1==4) size2_ger = "B"; else if (size1==5) size2_ger = "C"; else if (size1==6) size2_ger = "D"; else if (size1==7) size2_ger = "E"; else if (size1==8) size2_ger = "F"; else if (size1==9) size2_ger = "G"; else if (size1==10) size2_ger = "H"; else if (size1==11) size2_ger = "I"; else if (size1==12) size2_ger = "J"; else if (size1==13) size2_ger = "K"; document.bmi.size2_ger.value = size2_ger; document.bmi.size_usa.value = (24+Math.round((w-50)/5)*2); if (size1==1) size2_usa = "AAA" 
 else if (size1==2) size2_usa = "AA"
 else if (size1==3) size2_usa = "A"; else if (size1==4) size2_usa = "B"; else if (size1==5) size2_usa = "C"; else if (size1==6) size2_usa = "D"; else if (size1==7) size2_usa = "E"; else if (size1==8) size2_usa = "F"; else if (size1==9) size2_usa = "G"; else if (size1==10) size2_usa = "H"; else if (size1==11) size2_usa = "I"; else if (size1==12) size2_usa = "J"; else if (size1==13) size2_usa = "K"; document.bmi.size2_usa.value = size2_usa; 
 document.bmi.size_uk.value = (24+Math.round((w-50)/5)*2); if (size1==1) size2_uk = "AAA" 
 else if (size1==2) size2_uk = "AA"
 else if (size1==3) size2_uk = "A"; else if (size1==4) size2_uk = "B"; else if (size1==5) size2_uk = "C"; else if (size1==6) size2_uk = "D"; else if (size1==7) size2_uk = "DD"; else if (size1==8) size2_uk = "E"; else if (size1==9) size2_uk = "F"; else if (size1==10) size2_uk = "G"; else if (size1==11) size2_uk = "H"; else if (size1==12) size2_uk = "I"; else if (size1==13) size2_uk = "J"; document.bmi.size2_uk.value = size2_uk; document.bmi.size_fra.value = (50+Math.round((w-50)/5)*5+15); if (size1==1) size2_fra = "AAA" 
 else if (size1==2) size2_fra = "AA"
 else if (size1==3) size2_fra = "A"; else if (size1==4) size2_fra = "B"; else if (size1==5) size2_fra = "C"; else if (size1==6) size2_fra = "D"; else if (size1==7) size2_fra = "E"; else if (size1==8) size2_fra = "F"; else if (size1==9) size2_fra = "G"; else if (size1==10) size2_fra = "H"; else if (size1==11) size2_fra = "I"; else if (size1==12) size2_fra = "J"; else if (size1==13) size2_fra = "K"; document.bmi.size2_fra.value = size2_fra; document.bmi.size_ita.value = (Math.round((w-65)/5)); if (size1==1) size2_ita = "AAA" 
 else if (size1==2) size2_ita = "AA"
 else if (size1==3) size2_ita = "A"; else if (size1==4) size2_ita = "B"; else if (size1==5) size2_ita = "C"; else if (size1==6) size2_ita = "D"; else if (size1==7) size2_ita = "E"; else if (size1==8) size2_ita = "F"; else if (size1==9) size2_ita = "G"; else if (size1==10) size2_ita = "H"; else if (size1==11) size2_ita = "I"; else if (size1==12) size2_ita = "J"; else if (size1==13) size2_ita = "K"; document.bmi.size2_ita.value = size2_ita; }
 return rvalue;}
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