function getSEOProduct()
{
	var product;
	
	for (i=0; i < document.seo.product.length; i++)
	{
		if (document.seo.product[i].checked == true)
		{
			product = document.seo.product[i].value
			break //exist for loop, as target acquired.
		}
	}
	
	return product;
}

function switchBacklinkType()
{
	if(document.getElementById("type").value == 'Contentlinks')
	{
		document.getElementById("lblType").innerHTML = 'Textlinks';
		document.getElementById("type").value = 'Textlinks';
	}
	else
	{
		document.getElementById("lblType").innerHTML = 'Contentlinks';
		document.getElementById("type").value = 'Contentlinks';
	}
	
	changePrice();
}

function increaseBacklinkQuantity()
{
	var quantity;
	
	switch (document.getElementById("quantity").value)
	{
		case "30":
			quantity = 50;
			break;
		case "50":
			quantity = 75;
			break;
		case "75":
			quantity = 100;
			break;
		case "100":
			quantity = 150;
			break;
		case "150":
			quantity = 200;
			break;
		case "200":
			quantity = 300;
			break;
		case "300":
			quantity = 500;
			break;
		case "500":
			quantity = 30;
			break;
		default:
			quantity = 30;
	}
	
	document.getElementById("lblQuantity").innerHTML = quantity;
	document.getElementById("quantity").value = quantity;
	
	changePrice();
}

function decreaseBacklinkQuantity()
{
	var quantity;
	
	switch (document.getElementById("quantity").value)
	{
		case "30":
			quantity = 500;
			break;
		case "50":
			quantity = 30;
			break;
		case "75":
			quantity = 50;
			break;
		case "100":
			quantity = 75;
			break;
		case "150":
			quantity = 100;
			break;
		case "200":
			quantity = 150;
			break;
		case "300":
			quantity = 200;
			break;
		case "500":
			quantity = 300;
			break;
		default:
			quantity = 30;
	}
	
	document.getElementById("lblQuantity").innerHTML = quantity;
	document.getElementById("quantity").value = quantity;
	
	changePrice();
}

function changePrice()
{
	var price;
	var quantity = document.getElementById("quantity").value;
	var type = document.getElementById("type").value;
	
	switch (quantity)
	{
		case "30":
			if(type == "Contentlinks")
			{
				price = "124,95";
			}
			else
			{
				price = "89,25";
			}
			break;
		case "50":
			if(type == "Contentlinks")
			{
				price = "208,25";
			}
			else
			{
				price = "148,75";
			}
			break;
		case "75":
			if(type == "Contentlinks")
			{
				price = "312,38";
			}
			else
			{
				price = "223,13";
			}
			break;
		case "100":
			if(type == "Contentlinks")
			{
				price = "416,50";
			}
			else
			{
				price = "297,50";
			}
			break;
		case "150":
			if(type == "Contentlinks")
			{
				price = "624,75";
			}
			else
			{
				price = "446,25";
			}
			break;
		case "200":
			if(type == "Contentlinks")
			{
				price = "833,00";
			}
			else
			{
				price = "595,00";
			}
			break;
		case "300":
			if(type == "Contentlinks")
			{
				price = "1.249,50";
			}
			else
			{
				price = "892,50";
			}
			break;
		case "500":
			if(type == "Contentlinks")
			{
				price = "2.082,50";
			}
			else
			{
				price = "1.487,50";
			}
			break;
		default:
			if(type == "Contentlinks")
			{
				price = "124,95";
			}
			else
			{
				price = "89,25";
			}
	}
	
	document.getElementById("lblPrice").innerHTML = price;
	document.getElementById("price").value = price;
	
	document.getElementById("selectedProduct").innerHTML = quantity + " " + type + " a " + price + "&euro; (inkl. 19%) pro Monat";
}