function changeLinkTitle()
{
	setInnerText($('sample-link').getElementsByTagName('H4')[0],
		($('link-title').value.trim() != '') ? $('link-title').value : 'Example Company Name');
}

function changeLinkAddress()
{
	var addr_names = ['link-addr1', 'link-addr2', 'link-town', 'link-county', 'link-postcode'];
	
	var addr_array = [];
	var value;
	for (var i = 0; i < addr_names.length; i++) {
		value = $(addr_names[i]).value.trim();
		if (value != '') {
			addr_array[addr_array.length] = value;
		}
	}
	
	setInnerText(getElementsByClassName($('sample-link'), 'link-addr')[0],
		addr_array.join(', '));
}

function changeLinkEmail()
{
	var email = $('link-email').value.trim();
	
	var link = getElementsByClassName($('sample-link'), 'link-email')[0];
	link.href = 'mailto:' + email;
	link.style.display = ((email == '') ? 'none' : '');
}

function changeLinkTel()
{
	var el = getElementsByClassName($('sample-link'), 'link-tel')[0];
	var text = $('link-tel').value.trim();
	
	setInnerText(el, text);
	el.style.display = ((text == '') ? 'none' : '');
}

function changeLinkFax()
{
	var el = getElementsByClassName($('sample-link'), 'link-fax')[0];
	var text = $('link-fax').value.trim();
	
	setInnerText(el, text);
	el.style.display = ((text == '') ? 'none' : '');
}