function setVisible(obj)
{
	obj = document.getElementById(obj);
	obj.style.visibility = (obj.style.visibility == 'visible') ? 'hidden' : 'visible';
}
function setPopupPic(obj, srcurl)
{
	obj = document.getElementById(obj);
	obj.src = srcurl;
}
function setPopupPos(obj, pos)
{
	obj = document.getElementById(obj);
	obj.style.posTop = pos;
}