function setCurrentTopLink(currentTopLinkId)
{
	var currentTopLink = document.getElementById(currentTopLinkId);
	currentTopLink.className = "currentTopLink";
}

function normalizeBlockHeight(elementIdA, elementIdB)
{
	var x = document.getElementById(elementIdA);
	var y = document.getElementById(elementIdB);
	
	if (x.offsetHeight < y.offsetHeight)
	{
		x.style.height = String(y.offsetHeight) + "px";
	}
	else
	{
		y.style.height = String(x.offsetHeight) + "px";
	}
}

function validateEmailAddress(emailStr)
{
	if (emailStr.length > 5 && emailStr.indexOf('@') >= 1 && emailStr.indexOf('.') >= 3)
	{
		return true;
	}
	else
	{
		alert("Please enter a valid email address.");
		return false;
	}
}

function tbxSwapFocus(elementId)
{
	var x = document.getElementById(elementId);
	if (x.value == "your email")
	{
		x.value = "";
	}
	else if (x.value == "")
	{
		x.value = "your email";
	}
}