function get(obj)
{
	return document.getElementById(obj);
}

function number_format (number, decimals, dec_point, thousands_sep)
{
  var exponent = "";
  var numberstr = number.toString ();
  var eindex = numberstr.indexOf ("e");
  if (eindex > -1)
  {
    exponent = numberstr.substring (eindex);
    number = parseFloat (numberstr.substring (0, eindex));
  }
  
  if (decimals != null)
  {
    var temp = Math.pow (10, decimals);
    number = Math.round (number * temp) / temp;
  }
  
  var sign = number < 0 ? "-" : "";
  var integer = (number > 0 ? Math.floor (number) : Math.abs (Math.ceil (number))).toString ();
  var fractional = number.toString ().substring (integer.length + sign.length);
  
  dec_point = dec_point != null ? dec_point : ".";

  fractional = decimals != null && decimals > 0 || fractional.length > 1 ? 
               (dec_point + fractional.substring (1)) : "";

  if (decimals != null && decimals > 0)
  {
    for (i = fractional.length - 1, z = decimals; i < z; ++i)
      fractional += "0";
  }

  thousands_sep = (thousands_sep != dec_point || fractional.length == 0) ? 
                  thousands_sep : null;

  if (thousands_sep != null && thousands_sep != "")
  {
	for (i = integer.length - 3; i > 0; i -= 3)
      integer = integer.substring (0 , i) + thousands_sep + integer.substring (i);
  }

  return sign + integer + fractional + exponent;
}

function Check_Num(code,ie_code)
{
	
	if (code) val = code;
	else val = ie_code;

	val_char = String.fromCharCode(val);

	if ((val >= 48 && val <= 57) || val == 8) return true;
	return false;
}

function Phone_Check(code,ie_code)
{
	
	if (code) val = code;
	else val = ie_code;

	val_char = String.fromCharCode(val);

	if ((val >= 48 && val <= 57) || val == 8 || val == 45) return true;
	return false;
}

function Setup_Total()
{
	
	var total_val=0;
	for (i=0;i<Total_Price.length;i++)
	{
		total_val += parseFloat(Total_Price[i]);
	}
	get("Cart_Total_Price").innerHTML = number_format(total_val,2);
	
}

function Change_Price(obj,pos)
{
	var input_val = parseFloat(obj.value);
	if (isNaN(input_val)) input_val = 0;
	var price_val = parseFloat(Price[pos-1]);
	var shipping_val = parseFloat(Shipping[pos-1]);
	var total_val = (price_val+shipping_val) * input_val;
	var total_p = number_format(price_val * input_val,2);
	var total_s = number_format(shipping_val * input_val,2);
	
	Total_Price[pos-1] = number_format(total_val,2);
	
	get("Cart_"+pos+"_Total_Price").innerHTML = Total_Price[pos-1];
	//get("Cart_"+pos+"_Total_P").innerHTML =total_p;
	//get("Cart_"+pos+"_Total_S").innerHTML =total_s;
	Setup_Total();
}

function Setup()
{
	for (s=0;s<Price.length;s++)
	{
		Change_Price(get("Cart_"+(s+1)+"_input"),s+1);
	}
}