function gu(s, a) {
			res = "";
			ss = new String(s);
			num = ss.length / 2;
			for (i=0; i<num; i++) {
				sl = parseInt(ss.substring(i*2, i*2 + 2), 16);
				slx = sl ^ ((i + 10) % 256);
				res += unescape("%" + slx.toString(16));
			}
			a.href = res;
			a.onmouseover = null;
		}