function btninfoovr(el) {
	var s = "../images/btn_info_ovr.gif";
	if(el.src.indexOf('tra') >= 0) {
		s = "../images/btn_info_tra_ovr.gif";
	}
	el.src = s;
}

function btninfoout(el) {
	var s = "../images/btn_info.gif";
	if(el.src.indexOf('tra') >= 0) {
		s = "../images/btn_info_tra.gif";
	}
	el.src = s;
}