Event.observe(window, 'load', setUpImageRollovers);

function setUpImageRollovers()
{
	var l_oImages = document.getElementsByTagName('LI');
	for (var loop=0, max=l_oImages.length; loop<max; loop++)
	{
		var l_oListItem = l_oImages[loop];
		if (l_oListItem.className.indexOf('imageLI') >= 0)
		{
			var l_sListItemLink = l_oListItem.getElementsByTagName('IMG')[0];
			Event.observe(l_sListItemLink, 'mouseover', rollOverImage);
		}
	}
}

function rollOverImage(eventData)
{
	if (eventData) {
		var l_oEventData = Event.element(eventData);
		var l_sNewSrc = l_oEventData.src;
		var l_pNewSrc = l_sNewSrc.split('/');
		var l_sFileName = l_pNewSrc[l_pNewSrc.length - 1].replace(/\.(.*)$/,'');
		var l_sGalleryName = l_pNewSrc[l_pNewSrc.length - 3];
	
		var l_oPlaceholderImage = document.getElementById('sideBarImage');
		if (l_oPlaceholderImage) {
			l_oPlaceholderImage.src = '/galleryimage.php?show=' + l_sFileName + '&gallery=' + l_sGalleryName + '&preview=true';
		}
	}
}