function blinkit(obj_id, i, clr_on, clr_off)		//	i : 1=ON , 0=OFF
{
	t = new Array(1500,200)		//	time on, time off
	obj = document.getElementById(obj_id)
	if (!obj) return
	obj.style.color = (i==0 ? clr_on : clr_off)
	setTimeout("blinkit('"+obj_id+"',"+((i+1)%2)+", '"+clr_on+"', '"+clr_off+"')",t[i])
}