function priceculc(){
//商品_1 の部分の計算
PRICE_1 = parseInt(MERCHAN_1);
//PRICE_1 = parseInt(document.form.merchan_1.options[document.form.merchan_1.selectedIndex].value);
Item_1 = document.form.Item_1.value;
Amount_1 = Number(PRICE_1) * Number(Item_1);
document.form.Amount_1.value = Amount_1;
//商品_2 の部分の計算
	PRICE_2 = parseInt(MERCHAN_2);
//PRICE_2 = parseInt(document.form.merchan_2.options[document.form.merchan_2.selectedIndex].value);
Item_2 = document.form.Item_2.value;
Amount_2 = Number(PRICE_2) * Number(Item_2);
document.form.Amount_2.value = Amount_2;
//商品_3 の部分の計算
PRICE_3 = parseInt(MERCHAN_3);
//PRICE_3 = parseInt(document.form.merchan_3.options[document.form.merchan_3.selectedIndex].value);
Item_3 = document.form.Item_3.value;
Amount_3 = Number(PRICE_3) * Number(Item_3);
document.form.Amount_3.value = Amount_3;
//商品_4 の部分の計算
PRICE_4 = parseInt(MERCHAN_4);
//PRICE_4 = parseInt(document.form.merchan_4.options[document.form.merchan_4.selectedIndex].value);
Item_4 = document.form.Item_4.value;
Amount_4 = Number(PRICE_4) * Number(Item_4);
document.form.Amount_4.value = Amount_4;
//商品_5 の部分の計算
PRICE_5 = parseInt(MERCHAN_5);
//PRICE_5 = parseInt(document.form.merchan_5.options[document.form.merchan_5.selectedIndex].value);
Item_5 = document.form.Item_5.value;
Amount_5 = Number(PRICE_5) * Number(Item_5);
document.form.Amount_5.value = Amount_5;
//商品_6 の部分の計算
PRICE_6 = parseInt(MERCHAN_6);
//PRICE_6 = parseInt(document.form.merchan_6.options[document.form.merchan_6.selectedIndex].value);
Item_6 = document.form.Item_6.value;
Amount_6 = Number(PRICE_6) * Number(Item_6);
document.form.Amount_6.value = Amount_6;
//商品_7 の部分の計算
PRICE_7 = parseInt(MERCHAN_7);
//PRICE_7 = parseInt(document.form.merchan_7.options[document.form.merchan_7.selectedIndex].value);
Item_7 = document.form.Item_7.value;
Amount_7 = Number(PRICE_7) * Number(Item_7);
document.form.Amount_7.value = Amount_7;
//商品_8 の部分の計算
PRICE_8 = parseInt(MERCHAN_8);
//PRICE_8 = parseInt(document.form.merchan_8.options[document.form.merchan_8.selectedIndex].value);
Item_8 = document.form.Item_8.value;
Amount_8 = Number(PRICE_8) * Number(Item_8);
document.form.Amount_8.value = Amount_8;
//商品_9 の部分の計算
PRICE_9 = parseInt(MERCHAN_9);
//PRICE_9 = parseInt(document.form.merchan_9.options[document.form.merchan_9.selectedIndex].value);
Item_9 = document.form.Item_9.value;
Amount_9 = Number(PRICE_9) * Number(Item_9);
document.form.Amount_9.value = Amount_9;
//商品_10 の部分の計算
PRICE_10 = parseInt(MERCHAN_10);
//PRICE_10 = parseInt(document.form.merchan_10.options[document.form.merchan_10.selectedIndex].value);
Item_10 = document.form.Item_10.value;
Amount_10 = Number(PRICE_10) * Number(Item_10);
document.form.Amount_10.value = Amount_10;
//商品_11 の部分の計算
PRICE_11 = parseInt(MERCHAN_11);
//PRICE_11 = parseInt(document.form.merchan_11.options[document.form.merchan_11.selectedIndex].value);
Item_11 = document.form.Item_11.value;
Amount_11 = Number(PRICE_11) * Number(Item_11);
document.form.Amount_11.value = Amount_11;
//商品_12 の部分の計算
PRICE_12 = parseInt(MERCHAN_12);
//PRICE_12 = parseInt(document.form.merchan_12.options[document.form.merchan_12.selectedIndex].value);
Item_12 = document.form.Item_12.value;
Amount_12 = Number(PRICE_12) * Number(Item_12);
document.form.Amount_12.value = Amount_12;
//商品_13 の部分の計算
PRICE_13 = parseInt(MERCHAN_13);
//PRICE_13 = parseInt(document.form.merchan_13.options[document.form.merchan_13.selectedIndex].value);
Item_13 = document.form.Item_13.value;
Amount_13 = Number(PRICE_13) * Number(Item_13);
document.form.Amount_13.value = Amount_13;
//商品_14 の部分の計算
PRICE_14 = parseInt(MERCHAN_14);
//PRICE_14 = parseInt(document.form.merchan_14.options[document.form.merchan_14.selectedIndex].value);
Item_14 = document.form.Item_14.value;
Amount_14 = Number(PRICE_14) * Number(Item_14);
document.form.Amount_14.value = Amount_14;
//商品_15 の部分の計算
	PRICE_15 = parseInt(MERCHAN_15);
//PRICE_15 = parseInt(document.form.merchan_15.options[document.form.merchan_15.selectedIndex].value);
Item_15 = document.form.Item_15.value;
Amount_15 = Number(PRICE_15) * Number(Item_15);
document.form.Amount_15.value = Amount_15;
//商品_16 の部分の計算
PRICE_16 = parseInt(MERCHAN_16);
//PRICE_16 = parseInt(document.form.merchan_16.options[document.form.merchan_16.selectedIndex].value);
Item_16 = document.form.Item_16.value;
Amount_16 = Number(PRICE_16) * Number(Item_16);
document.form.Amount_16.value = Amount_16;
//商品_17 の部分の計算
PRICE_17 = parseInt(MERCHAN_17);
//PRICE_17 = parseInt(document.form.merchan_17.options[document.form.merchan_17.selectedIndex].value);
Item_17 = document.form.Item_17.value;
Amount_17 = Number(PRICE_17) * Number(Item_17);
document.form.Amount_17.value = Amount_17;
//商品_18 の部分の計算
PRICE_18 = parseInt(MERCHAN_18);
//PRICE_18 = parseInt(document.form.merchan_18.options[document.form.merchan_18.selectedIndex].value);
Item_18 = document.form.Item_18.value;
Amount_18 = Number(PRICE_18) * Number(Item_18);
document.form.Amount_18.value = Amount_18;
//商品_19 の部分の計算
PRICE_19 = parseInt(MERCHAN_19);
//PRICE_19 = parseInt(document.form.merchan_19.options[document.form.merchan_19.selectedIndex].value);
Item_19 = document.form.Item_19.value;
Amount_19 = Number(PRICE_19) * Number(Item_19);
document.form.Amount_19.value = Amount_19;
//商品_20 の部分の計算
PRICE_20 = parseInt(MERCHAN_20);
//PRICE_20 = parseInt(document.form.merchan_20.options[document.form.merchan_20.selectedIndex].value);
Item_20 = document.form.Item_20.value;
Amount_20 = Number(PRICE_20) * Number(Item_20);
document.form.Amount_20.value = Amount_20;
//商品_21 の部分の計算
PRICE_21 = parseInt(MERCHAN_21);
//PRICE_21 = parseInt(document.form.merchan_21.options[document.form.merchan_21.selectedIndex].value);
Item_21 = document.form.Item_21.value;
Amount_21 = Number(PRICE_21) * Number(Item_21);
document.form.Amount_21.value = Amount_21;
//商品_22 の部分の計算
PRICE_22 = parseInt(MERCHAN_22);
//PRICE_22 = parseInt(document.form.merchan_22.options[document.form.merchan_22.selectedIndex].value);
Item_22 = document.form.Item_22.value;
Amount_22 = Number(PRICE_22) * Number(Item_22);
document.form.Amount_22.value = Amount_22;
//商品_23 の部分の計算
PRICE_23 = parseInt(MERCHAN_23);
//PRICE_23 = parseInt(document.form.merchan_23.options[document.form.merchan_23.selectedIndex].value);
Item_23 = document.form.Item_23.value;
Amount_23 = Number(PRICE_23) * Number(Item_23);
document.form.Amount_23.value = Amount_23;
//商品_24 の部分の計算
PRICE_24 = parseInt(MERCHAN_24);
//PRICE_24 = parseInt(document.form.merchan_24.options[document.form.merchan_24.selectedIndex].value);
Item_24 = document.form.Item_24.value;
Amount_24 = Number(PRICE_24) * Number(Item_24);
document.form.Amount_24.value = Amount_24;
//商品_25 の部分の計算
PRICE_25 = parseInt(MERCHAN_25);
//PRICE_25 = parseInt(document.form.merchan_25.options[document.form.merchan_25.selectedIndex].value);
Item_25 = document.form.Item_25.value;
Amount_25 = Number(PRICE_25) * Number(Item_25);
document.form.Amount_25.value = Amount_25;
//商品_26 の部分の計算
PRICE_26 = parseInt(MERCHAN_26);
//PRICE_26 = parseInt(document.form.merchan_26.options[document.form.merchan_26.selectedIndex].value);
Item_26 = document.form.Item_26.value;
Amount_26 = Number(PRICE_26) * Number(Item_26);
document.form.Amount_26.value = Amount_26;
//商品_27 の部分の計算
PRICE_27 = parseInt(MERCHAN_27);
//PRICE_27 = parseInt(document.form.merchan_27.options[document.form.merchan_27.selectedIndex].value);
Item_27 = document.form.Item_27.value;
Amount_27 = Number(PRICE_27) * Number(Item_27);
document.form.Amount_27.value = Amount_27;
//商品_28 の部分の計算
PRICE_28 = parseInt(MERCHAN_28);
//PRICE_28 = parseInt(document.form.merchan_28.options[document.form.merchan_28.selectedIndex].value);
Item_28 = document.form.Item_28.value;
Amount_28 = Number(PRICE_28) * Number(Item_28);
document.form.Amount_28.value = Amount_28;

//合計部分の計算
Total=Number(Amount_1) + Number(Amount_2) + Number(Amount_3) + Number(Amount_4) + Number(Amount_5) + Number(Amount_6) + Number(Amount_7) + Number(Amount_8) + Number(Amount_9) + Number(Amount_10) + Number(Amount_11) + Number(Amount_12) + Number(Amount_13) + Number(Amount_14) + Number(Amount_15) + Number(Amount_16) + Number(Amount_17) + Number(Amount_18) + Number(Amount_19) + Number(Amount_20) + Number(Amount_21) + Number(Amount_22) + Number(Amount_23) + Number(Amount_24)+ Number(Amount_25) + Number(Amount_23) + Number(Amount_24) + Number(Amount_25)
document.form.Total.value=Total
//消費税の計算：消費税率5%
Tax=Number(Total)*0.05/1.05
//有効桁数の調整
Tax = Math.round(Tax);
document.form.Tax.value=Tax
//総合計の計算
Sum = Number(Total)
document.form.Sum.value=Sum
//計算の終了
return false;
}