function changeQty(change,i){
	if ( i === undefined ) {i="";}   
	var currentQty = parseInt($('#qty'+i).val())    
    switch (change) {
        case 'add':
            currentQty += 1
            $('#qty'+i).val(currentQty);
            break
        case 'subtract':
            if (currentQty > 1) { 
                currentQty -= 1
                $('#qty'+i).val(currentQty);
                
            }
            break
        case 'field':
            if (currentQty > 0) {
                window.setTimeout('calculate()', 500)
            }
            break
    }
}

function setPayment(a,b,c,d){$('#payment-1').attr('disabled',a);
							 $('#payment-2').attr('disabled',b);
							 $('#payment-3').attr('disabled',c);
							 $('#payment-4').attr('disabled',d);
							}
$(document).ready(function () {
	$('div *').tooltip
	(
		{
			track: true,
                        top: -50, 
                        delay: 0,
			showURL: false,
			showBody: "|",
			fade: 250

		}
	);

if ($('#returning:checked').length > 0) {$('.logintable').show(); } 
										else 
										{$('.logintable').hide(); }
$('#returning').click(function(){$('.logintable').toggle(200);});

$('#osloveni-4').click(function(){$('.firma').show()});
	$('#osloveni-3').click(function(){$('.firma').hide()});
	$('#osloveni-2').click(function(){$('.firma').hide()});
	$('#osloveni-1').click(function(){$('.firma').hide()});
	
	
	if ($('#shipping-1:checked').length > 0) setPayment(false,false,false,true);
	if ($('#shipping-2:checked').length > 0) setPayment(false,false,false,true);
	if ($('#shipping-3:checked').length > 0) setPayment(true,false,false,false);
	
	$('#shipping-1').click(function(){$('#payment-1').attr('disabled',false);
							 $('#payment-2').attr('disabled',false);
							 $('#payment-3').attr('disabled',false);
							 $('#payment-4').attr('disabled',true);
							});

	$('#shipping-2').click(function(){$('#payment-1').attr('disabled',false);
							 $('#payment-2').attr('disabled',false);
							 $('#payment-3').attr('disabled',false);
							 $('#payment-4').attr('disabled',true);
							});
	$('#shipping-3').click(function(){$('#payment-1').attr('disabled',true);
							 $('#payment-2').attr('disabled',false);
							 $('#payment-3').attr('disabled',false);
							 $('#payment-4').attr('disabled',false);
							});
	
	
	
	if ($('#osloveni-4:checked').length == 0) 
	{$('.firma').hide();} else {$('.firma').show();}

    if ($('#doruceni-1:checked').length == 0) {$('#delivery_address').show();} else {$('#delivery_address').hide();}
        $('#doruceni-1').click(function(){$('#delivery_address').hide();});
		$('#doruceni-0').click(function(){$('#delivery_address').show();});


 
});