//消費税率
var tax_rate = 0.05

function replace_price(price)
{
  if (price.search(/[^0-9,]+/i) == -1) {
    var price1 = price.replace(/,/g , "");
    price1 = comma(price);
    return price1;
  }else { return price; }
}

function tax(price)
{
  if (price.search(/[^0-9,]+/i) == -1) {
    var price1 = price.replace(/,/g , "");
    price1 = Number(price1) * Number(tax_rate);
    price2 = comma(price1);
    return price2;
  }else { return ""; }
}

function sall(price,recycle)
{
  if (price.search(/[^0-9,]+/i) == -1) {
    var price1 = price.replace(/,/g , "");
    var recycle1 = recycle.replace(/,/g , "");
    if(recycle.search(/[^0-9,]+/i) == -1) {
      price2 = (Number(price1) * Number(tax_rate)) + Number(recycle1) + Number(price1);
      price3 = comma(price2);
      return price3;
    } else {
      price2 = (Number(price1) * Number(tax_rate)) + Number(price1);
      price3 = comma(price2);
      return price3;
    }
  } else { return ""; }
}

function comma(num){return num.toString().replace( /([0-9]+?)(?=(?:[0-9]{3})+$)/g , '$1,' );}