function showItem(sItem,aItem)
{
	for (i = 0; i < aItem.length; i++) {
		oItem = document.getElementById(aItem[i]);
		if (!oItem) continue;
		oItem.style.visibility = "hidden";
		oItem.style.display = "none";
	}
	oItem = document.getElementById(sItem);
	oItem.className = "";
	oItem.style.visibility = "visible";
	oItem.style.display = "";
}

function checkForm(frm)
{
	if (frm.contactName.value.length==0) {
		alert ("Please enter your name.");
		frm.contactName.focus();
		return false;
	}
	if (frm.contactEmail.value.length==0) {
		alert ("Please enter your email address.");
		frm.contactEmail.focus();
		return false;
	}
	if (frm.contactMessage.value.length==0) {
		alert ("Please enter a message.");
		frm.contactMessage.focus();
		return false;
	}
	return true;
}