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function dm(amount) 
{
  string = "" + amount;
  dec = string.length - string.indexOf('.');
  if (string.indexOf('.') == -1)
  return string + '.00';
  if (dec == 1)
  return string + '00';
  if (dec == 2)
  return string + '0';
  if (dec > 3)
  return string.substring(0,string.length-dec+3);
  return string;
}


function calculate()
{

  QtyA = 11.5;  QtyB = 18;  QtyC = 0;  QtyD = 5;  QtyE = 50;  QtyF = 2;  QtyG = 0;  QtyH = 100;  QtyI = 300;  QtyJ = 1000;  QtyK = 5;  QtyL = 3;  QtyM = .5;  QtyN = 3;  QtyO = 240;  QtyP = 1;  QtyQ = 22000;
  Tot1 = 0;  Tot2 = 0;  Tot3 = 0;  Tot4 = 0;  Tot5 = 0;  Tot6 = 0;  Tot7 = 0;  Tot8 = 0;  Tot9 = 0;  Tot10 = 0;  Tot11 = 0;  Tot12 = 0;  Tot13 = 0;  Tot14 = 0;  Tot15 = 0;  Tot16 = 0;  Tot17 = 0;  Tot18 = 0;  Tot19 = 0;  Tot20 = 0;  Tot21 = 0;  Tot22 = 0;  Tot23 = 0;  Tot24 = 0;  Tot25 = 0;  Tot26 = 0;  Tot27 = 0;  Tot28 = 0;  Tot29 = 0;  Tot30 = 0;  Tot31 = 0;  Tot32 = 0;  Tot33 = 0;  Tot34 = 0;  Tot35 = 0;  Tot36 = 0;  Tot37 = 0;  Tot38 = 0;  Tot39 = 0;  Tot40 = 0;  Tot41 = 0;

 
  if (document.ofrm.qtyC.value > "")
     { QtyC = document.ofrm.qtyC.value };
  document.ofrm.qtyC.value = eval(QtyC);
  
  if (document.ofrm.qtyG.value > "")
     { QtyG = document.ofrm.qtyG.value };
  document.ofrm.qtyG.value = eval(QtyG);
 

  Tot1 = (eval(QtyA) + eval(QtyB))/2;
  Tot2 = QtyC * QtyD;
  Tot3 = QtyE * QtyF;
  Tot4 = eval(QtyC) / eval(Tot3);
  Tot5 = eval(QtyC) / eval(QtyE);
  Tot6 = eval(Tot5) * eval(QtyA);
  Tot7 = eval(Tot5) * eval(QtyD);
  Tot8 = eval(Tot7) * eval(QtyA);
  Tot9 = eval(Tot8) * 52;
  Tot10 = eval(Tot2) * (eval(QtyG) / 100);
  Tot11 = (1 - (eval(QtyG)/100)) * 100;
  Tot12 = eval(Tot2) * (eval(Tot11) / 100);
  Tot13 = (eval(QtyH) + eval(QtyI) + eval(QtyJ))/3;
  Tot14 = eval(Tot12) * (eval(QtyK)/10000);
  Tot15 = eval(QtyC) * (eval(QtyL)/100);
  Tot16 = eval(Tot15) * eval(QtyM);
  Tot17 = eval(Tot16) * 5;
  Tot18 = (eval(Tot17) * eval(Tot1))*52;
  Tot19 = (eval(QtyB) * eval(QtyN))*52;  
  Tot20 = eval(QtyO) * eval(QtyP);
  Tot21 = eval(QtyC) / eval(Tot20);  
  Tot22 = eval(QtyC) / eval(QtyO);
  Tot23 = eval(QtyA) * eval(Tot22);
  Tot24 = eval(QtyD) * eval(Tot22);
  Tot25 = eval(QtyA) * eval(Tot24);
  Tot26 = eval(Tot25) * 52;  
  Tot27 = eval(Tot8) - eval(Tot25);
  Tot28 = eval(Tot27) * 52;
  Tot29 = eval(Tot5) - eval(Tot22);
  Tot30 = eval(Tot29) * eval(QtyD);
  Tot31 = eval(Tot29) * 22.5;
  Tot32 = eval(Tot30) * 52;
  Tot33 = eval(Tot4) - eval(Tot21);
  Tot34 = eval(Tot33) * 5;
  Tot35 = eval(Tot34) * 22.5;
  Tot36 = eval(Tot34) * 52;
  Tot37 = eval(Tot14) * eval(Tot13);
  Tot38 = eval(Tot37) * 5;
  Tot39 = eval(Tot37) * 22.5;
  Tot40 = eval(Tot39) * 12;
  Tot41 = eval(Tot19) + eval(Tot18) + eval(Tot9);
  Tot42 = eval(QtyQ);  
  Tot43 = eval(Tot6) / eval(QtyC);  
  Tot44 = eval(Tot23) / eval(QtyO);  
  Tot45 = eval(Tot43) - eval(Tot44);  
  Tot46 = eval(Tot45) / eval(Tot43);  
  Tot47 = eval(QtyF);  
  Tot48 = eval(QtyP);  
  Tot49 = eval(Tot47) - eval(Tot48);  
  Tot50 = (eval(Tot48) / eval(Tot47)) * 100;    
  Tot51 = eval(QtyE);    
  Tot52 = eval(QtyO);    
  Tot53 = eval(QtyO) - eval(QtyE);    
  Tot54 = (eval(QtyO) / eval(QtyE)) * 100;      
  Tot55 = eval(Tot9);      
  Tot56 = eval(Tot26);      
  Tot57 = eval(Tot28);      
  Tot58 = (eval(Tot28) / eval(Tot9)) * 100;
  
  Tot75 = eval(Tot57) + eval(Tot40) + eval(Tot18) + eval(Tot19);
  document.ofrm.total75.value = dm(eval(Tot75));
  
  Tot76 = (eval(Tot75) / eval(QtyQ)) * 100;
  document.ofrm.total76.value = dm(eval(Tot76));
  
} 


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