// Copyright(C) 2002 Massimiliano Mattei

function etree_click(element)
{
allRows = document.getElementsByTagName ("TR") ;
for (i = 0 ; i < allRows.length ; i++)
	{
	el = allRows[i] ;
	if (el.id.indexOf (element) != -1)
		{
		if (el.style.display == 'block'){
			el.style.display ='none';
		}
		else
			el.style.display ='block';
		}
	}
}