/*for price using thousands separator */
function fprice(s,n){   
   s = parseFloat((s + "").replace(/[^\d\.-]/g, "")).toFixed(n) + "";    //n为小数点后保留小数位
   var l = s.split(".")[0].split("").reverse(),   
   r = s.split(".")[1];   
   t = "";   
   for(i = 0; i < l.length; i ++ ){   
      t += l[i] + ((i + 1) % 3 == 0 && (i + 1) != l.length ? "," : "");   
   }   
   return t.split("").reverse().join("") + "." + r;   
}

function rprice(s){   
   return parseFloat(s.replace(/[^\d\.-]/g, ""));   
}