function overtd(id_td,this_td)
	{
		id_td.style.MozOpacity=0.6; 
		this_td.style.MozOpacity=0.6; 
		id_td.style.cursor='pointer';
		this_td.style.cursor='pointer'; 
	}
	
function outtd(id_td,this_td)
	{
		id_td.style.MozOpacity=1; 
		this_td.style.MozOpacity=1;
	}