function toggleTabs(activeTabNumber) {
	var activeTabObj = eval("document.getElementById('t" + activeTabNumber + "')");
	var activeContentObj = eval("document.getElementById('tc" + activeTabNumber + "')");
	//
	for (i=1; i < 4; i++) {
		tempTabObj = eval("document.getElementById('t" + i + "')");
		tempContentObj = eval("document.getElementById('tc" + i + "')");
		tempTabObj.className = "";
		tempContentObj.style.display = "none";
	}
	activeTabObj.className = "currTab";
	activeContentObj.style.display = "block";
}