function rollover(name)
{
	oldSrc = document.images[name].src;
	var fullpath = oldSrc.substring(0, oldSrc.lastIndexOf('/')) + '/';
  	var extension = oldSrc.substring(oldSrc.lastIndexOf('.'), oldSrc.length);
	fullpath = fullpath + name + '_over' + extension;
  	document.images[name].src = fullpath;

}

function rollout(name)
{
	oldSrc = document.images[name].src;
	var fullpath = oldSrc.substring(0, oldSrc.lastIndexOf('/')) + '/';
	var extension = oldSrc.substring(oldSrc.lastIndexOf('.'), oldSrc.length);
	fullpath = fullpath + name + extension;
  	document.images[name].src = fullpath;
}

function showHideFb()
{
	if (document.getElementById('fb_like').style.right == "0px")
	{
		document.getElementById('fb_like').style.right = "-999em";
	}
	else
	{
		document.getElementById('fb_like').style.right = "0px";
	}
}