function showprice()
{
var product;
var price;
var str;


      product = document.getElementById("product");
      price = document.getElementById("price");
      str = "<select id=\"price\" name=\"price\" style=\"visibility:visible;\"\"><option value=\"\">請選擇系列商品</option>";

   if (product.value == "獨立筒" || product.value == "連結式" || product.value == "一線鋼" || product.value == "科技床" || product.value == "乳膠類")
   {
     str += "<option value='20000'>	20,000 以下	</option>";
     str += "<option value='20001'>	20,001~45,000	</option>";
     str += "<option value='45001'>	45,001以上	</option>";
   }
   else 
   {
     str += "<option value=''> -- </option>";
   }

   str += "</select>";
   //alert("str: " + str);
   price.outerHTML= str;
}