function swapTab(tabNum) {
	for (i = 1; i <= 3; i++) {
		document.getElementById('contact' + i).style.display = 'none';
		document.getElementById('fTab' + i).className = '';
	}
	document.getElementById('contact' + tabNum).style.display = 'block';
	document.getElementById('fTab' + tabNum).className = 'on';
}

function swapFeatTab(featNum, tabNum) {
	for (i = 1; i <= 4; i++) {
		document.getElementById('featureTab' + i + featNum).style.display = 'none';
		var tabLinks = document.getElementById('featureLink' + i + featNum).getElementsByTagName('a');
		tabLinks[0].style.color = '#36C';
		tabLinks[0].style.textDecoration = 'underline';
	}
	document.getElementById('featureTab' + tabNum + featNum).style.display = 'block';
	var theTabLink = document.getElementById('featureLink' + tabNum + featNum).getElementsByTagName('a');
	theTabLink[0].style.color = '#000';
	theTabLink[0].style.textDecoration = 'none';

	// Additions
	var  container = document.getElementById("featureTabContainer_" + featNum)
		container.style.backgroundImage = 'url(' + imageSrc + ')';

}