function showObject(objid)
{
	var obj = document.getElementById(objid);
	obj.style.visibility = "visible";
	obj.style.display = "block";
	if(obj.shown)
	{	
		obj.style.visibility = "hidden";
		obj.style.display = "none";
		obj.shown = false;
	}	
	else
	{
		obj.shown = true;
	}
}