function CountBCart() //count buy cart
{
	var sum_curr1 = 0;
	var sum_curr2 = 0;
	var cartPositions = 0;
	var quantity  = 0;
	

	if (document.getElementById('bc_itms'))
	{
		cartPositions = document.getElementById('bc_itms').value;
		if (cartPositions > 0)
		{
			for (var i=0; i < cartPositions; i++ )
			{
				value_cur1	 = document.getElementById('bc_c1_'+i).value;
				value_cur2	 = document.getElementById('bc_c2_'+i).value;
				quantity	 = document.getElementById('bc_q_'+i).value;
				if (!isNaN(parseInt(quantity)) )
				{
					sum_curr1	+= value_cur1*quantity;
					sum_curr2	+= value_cur2*quantity;
				}
			}
			shipmentCost = parseInt(document.getElementById('sbz_sc').value);
			sum_curr1 = parseInt( parseInt(sum_curr1) + parseInt(shipmentCost) );

			document.getElementById('bc_s1').value = formatNumber(sum_curr1);
			document.getElementById('bc_s2').value = formatNumber(sum_curr2);
		}
	}
}


function formatNumber( fl )
{
	var dd, zz;
	fl = Math.round(fl * 100);
	dd = Math.floor(fl / 100);
	zz = fl % 100;
	if (zz < 10)
	  zz = '0'+zz;
	return dd + '.'+zz;
}