function showHide(id)
{
    obj = document.getElementById(id);

    if(obj.style.display == 'none') {
        obj.style.display = 'block';
    } else {
        obj.style.display = 'none';
    }
}

function showHideContact(showid)
{
	obj = document.getElementById('region' + showid);
    heading = document.getElementById('contact_heading_' + showid);

	for(i=1; i<3; i++)
	{
		hide = document.getElementById('region'+ i);
		hide.style.display = 'none';

        hide_heading = document.getElementById('contact_heading_' + i);
        hide_heading.style.fontWeight = 'normal';
        hide_heading.style.textDecoration = 'underline';
	}

	obj.style.display = 'block';
    heading.style.fontWeight = 'bold';
    heading.style.textDecoration = 'none';
}

// Update cart to show the price of the chosen region
function updateCart(select,old_region)
{
    var list = select.getElementsByTagName("option");
    var selected_country = select.value;
    var country;

    for(i=0;i<list.length;i++) 
    {
        if(list[i].value == selected_country) 
        {
            country = list[i];
        }
    }

    var country_region = country.getAttribute("region");

        if(country_region != old_region)
        {
            if(country_region == 1 || country_region == 2)
            {
                alert("NOTE: The prices of the products have been updated according to the region of your billing address. Please check the sidebar for the updated prices.");
                document.cart_customer_form.submit();
            } 
            else 
            {
                alert("NOTE: This product may not be available in the billing country you selected. Please check the updated shopping cart to see if the product is available in your selected billing country.");
                document.cart_customer_form.submit();
            }
        }
    return;
}