function test_email()
	{
	var	re = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;

	if (document.forms[0].email.value != "")
		{
		if (!re.test(document.forms[0].email.value))
			{
			alert("The e-mail address you entered is invalid! Please try again.");
			document.forms[0].email.value = "";
			}
		}
	}

function test_data()
	{
	var	re = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;

	if (!re.test(document.forms[0].email.value))
		{
		alert("The e-mail address you entered is invalid! Please try again.");
		document.forms[0].email.value = "";
		}
	}