function chk_address()
{
	if (document.forms[0].lastname.value == "")
	{
		alert("Bitte tragen Sie Ihren Nachnamen ein");
	}
	else if (document.forms[0].prename.value == "")
	{
		alert("Bitte tragen Sie Ihren Vornamen ein");
	}
	else if (document.forms[0].email.value == "")
	{
		alert("Bitte tragen Sie Ihre E-Mail Adresse ein");
	}
	else if (document.forms[0].street.value == "")
	{
		alert("Bitte tragen Sie Ihre Strasse ein");
	}
	else if (document.forms[0].zipcode.value == "")
	{
		alert("Bitte tragen Sie Ihre PLZ ein");
	}
	else if (document.forms[0].city.value == "")
	{
		alert("Bitte tragen Sie Ihren Ort ein");
	}
	else if (document.forms[0].country.value == "")
	{
		alert("Bitte tragen Sie Ihr Land ein");
	}
	else
	{
		document.forms[0].submit();
	}
}


function showhideSA()
{
	if (document.forms[0].sa[0].checked == true)
	{
		document.forms[0].s_salutation.disabled = 'true'
		document.forms[0].s_lastname.disabled = 'true'
		document.forms[0].s_prename.disabled = 'true'
		document.forms[0].s_company.disabled = 'true'
		document.forms[0].s_street.disabled = 'true'
		document.forms[0].s_zipcode.disabled = 'true'
		document.forms[0].s_city.disabled = 'true'
		document.forms[0].s_country.disabled = 'true'

		document.forms[0].s_salutation.style.visibility = ''
		document.forms[0].s_lastname.style.visibility = ''
		document.forms[0].s_prename.style.visibility = ''
		document.forms[0].s_company.style.visibility = ''
		document.forms[0].s_street.style.visibility = ''
		document.forms[0].s_zipcode.style.visibility = ''
		document.forms[0].s_city.style.visibility = ''
		document.forms[0].s_country.style.visibility = ''
	}
	else if (document.forms[0].sa[1].checked == true)
	{
		document.forms[0].s_salutation.disabled = ''
		document.forms[0].s_lastname.disabled = ''
		document.forms[0].s_prename.disabled = ''
		document.forms[0].s_company.disabled = ''
		document.forms[0].s_street.disabled = ''
		document.forms[0].s_zipcode.disabled = ''
		document.forms[0].s_city.disabled = ''
		document.forms[0].s_country.disabled = ''

		document.forms[0].s_salutation.style.visibility = ''
		document.forms[0].s_lastname.style.visibility = ''
		document.forms[0].s_prename.style.visibility = ''
		document.forms[0].s_company.style.visibility = ''
		document.forms[0].s_street.style.visibility = ''
		document.forms[0].s_zipcode.style.visibility = ''
		document.forms[0].s_city.style.visibility = ''
		document.forms[0].s_country.style.visibility = ''
	}
	else if (document.forms[0].sa[2].checked == true)
	{
		document.forms[0].s_salutation.style.visibility = 'hidden'
		document.forms[0].s_lastname.style.visibility = 'hidden'
		document.forms[0].s_prename.style.visibility = 'hidden'
		document.forms[0].s_company.style.visibility = 'hidden'
		document.forms[0].s_street.style.visibility = 'hidden'
		document.forms[0].s_zipcode.style.visibility = 'hidden'
		document.forms[0].s_city.style.visibility = 'hidden'
		document.forms[0].s_country.style.visibility = 'hidden'
	}
}