function Highlight(sentid, sw, color) {
	base_src = "/images/arr-"+sentid+".gif"
	if (color == '#fff' || color == '#FFF') {
		src = "/images/arr-"+sentid+"-hd.gif"
	}
	else {
		src = "/images/arr-"+sentid+"-hl.gif"
	}
	if (sw == 'on') {
		document.getElementById(sentid).src = src;
	}
	else {
		document.getElementById(sentid).src = base_src;
	}
}