// HELPER FUNCTIONS //

function isValid (email)
	{
	a = email.indexOf("@");
	d = email.lastIndexOf(".");
	l = email.length;
	if (a < 1 || d > (l - 3) || d < (a + 2) || l < 6)	return false;
	else							return true;
	}

// MAIN FUNCTIONS //

function toggleNewsletterText (d, v, q)
	{
	t = 'your e-mail address';
	d.value = (q) ? ((v != '' && v != t ) ? v : '') : ((v == '') ? t : v);
	}

function trapNewsletterSubmit (f)
	{
	r = (isValid (f.inputEmail.value)) ? true : false;
	return r;
	}

function toggleDetails (id)
	{
	l = document.getElementById ('detail' + id);
	l.style.display = (l.style.display == 'none' || l.style.display == '') ? 'list-item' : 'none';
	}

// TOOL FUNCTIONS //

function printPage ()
	{
	window.print ();
	}

function sendEmail ()
	{
	open ('/post/send/e-mail.php', 'sendEmail', 'menubar=no,location=no,resizable=no,scrollbars=no,status=no,width=590,height=400');
	}

function externalLinks ()
	{ 
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName ("a");
	for (var i = 0; i < anchors.length; i++)
		{
		var anchor = anchors[i];
		if (anchor.getAttribute ("href") && anchor.getAttribute ("rel") == "external")
		anchor.target = "_blank";
		}
	}

window.onload = externalLinks;