function Calc()
{
   // Where you edit the prices for the 5 different packages:
   var price1 = 120; // 1 Bedroom price
   var price2 = 180; // 2 Bedroom price
   var price3 = 280; // 3 Bedroom price
   var price4 = 360; // 4 Bedroom price
   var price5 = 440; // 5 Bedroom price

   document.F.XX.value = "";
   var msg = "";
   var sf = document.F.SF.selectedIndex;
   var sv = document.F.SV.selectedIndex;
   var br = Number(document.F.BR.selectedIndex);
   var gr = Number(document.F.GR.selectedIndex);

   if (sf == 0) { br = 1; } // dorm = 1 bedrooms
   if (sf == 1) { br = 2; } // A studio = 2 bedrooms
   if (sf == 2 && br == 1) { br = 2; } // Small Apt, min 2BR 
   if (sf == 3 && br == 1) { br = 2; } // Large Apt,   min 2BR 
   if (sf == 4 && br == 1) { br = 2; } // Small House, min 2BR
   if (sf == 5 && br < 3) { br = 3; } // Medium House, min 3BR
   if (sf == 6 && br < 4) { br = 4; } // Large House,  min 4BR

   if (gr == 1) { br++; } // Add a bedroom for the great room

   if (sv == 0) { br--; } // Subtract a bedroom for minimal homes
   if (sv == 2) { br++; } // Add a bedroom for pack rats

   // Five levels: 1 to 5 bedrooms
   // 1 bedroom
   var small = 8; var med = 5; var large = 3; var dish = 3; var wardrobe = 1;
   var bubble = 1; var paper = 10; var tape = 2; var price = price1;

   // 2 bedrooms
   if (br == 2)
   { small = 16;  med = 10;    large = 6;  dish = 3; wardrobe = 2;
     bubble = 1; paper = 15; tape = 3; price = price2; }
 
   // 3 bedrooms
   if (br == 3)
   { small = 20;  med = 15;    large = 12;  dish = 5; wardrobe = 4;
     bubble = 2; paper = 20; tape = 5; price = price3; }

   // 4 bedrooms
   if (br == 4)
   { small = 30;  med = 25;    large = 15;  dish = 7; wardrobe = 6;
     bubble = 2; paper = 30; tape = 8; price = price4; }

   // 5 bedrooms (or more)
   if (br > 4)
   { small = 40;  med = 35;    large = 20;  dish = 9; wardrobe = 8;
     bubble = 3; paper = 40; tape = 12; price = price5; }

   // No need to edit below here

   var msg = " Number of boxes: " + small + " small, " + med + " medium, " +
	large + " large\n";
   msg = msg + "   " + dish + " dish packs, " + wardrobe + " wardrobe boxes\n";
   msg = msg + "   " + bubble + " rolls bubble wrap, " + paper + " lbs. paper wrap\n";
   msg = msg + "   " + tape + " rolls tape\n\n * * Total Price = $ " + price;
   document.F.XX.value = msg;
}