// JavaScript Document



function check_Mail(mail)

{

	 if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(mail))) 

	 {

		return false;

	} else

	{	return true;

	}

}



function check_Selected(id)

	{	

		d = document.getElementById(id);

		if(d.options[d.selectedIndex].value == -1) 

		{

			alert("Please choose an option from the dropdown menu.");

			d.focus();

			return false;

		}

		return true;

	}

	

function check_Items(nr , a)

	{

		if(nr <= 0)

		{

		alert("No Items in shopping cart.");

		return false;

		}

		else

		{

			if(a != 1) window.location.replace('checkout.php');

			return true;

		}

	}