function toggleHeading ( element, subelement )
{
	if (element.className == "clickableHeading") {
		// open heading
		element.className = "clickableHeadingActive";
		document.getElementById(subelement).style.display = "block";
	} else {
		// close heading
		element.className = "clickableHeading";
		document.getElementById(subelement).style.display = "none";
	}
}

function setImage ( imgPath, imgBigPath )
{
	theimg = document.getElementById('headerImg');
	theimg.src = imgPath;
	theimg.onclick = new Function('window.open(\'' + imgBigPath + '\');');
}

function setImageWithAlt ( imgPath, imgBigPath, alt )
{
	theimg = document.getElementById('headerImg');
	theimg.src = imgPath;
	theimg.alt = alt;
	theimg.title = alt;
	theimg.onclick = new Function('window.open(\'' + imgBigPath + '\');');
}