function updateContent(_section) {
	document.getElementById("contact").className = document.getElementById("calculator").className = "displayNone";
	document.getElementById(_section).className = "displayBlock";
	
	document.getElementById("tabs").className = _section + "Active";
	
	if(_section == "contact") {
		document.getElementById("contactLink").className = "inactive";
		document.getElementById("calculatorLink").className = "active";
	} else {
		document.getElementById("contactLink").className = "active";
		document.getElementById("calculatorLink").className = "inactive";
	}
}