tcookie(_keyfootprint);
if (footprint) {
var footprints = footprint.split('|');
var newidx;
var newfootprints = [];
var _start = footprints.length > 10 ? (footprints.length - 9) : 0;
for (newidx = 0; _start < footprints.length; _start++) {
var patt = new regexp(currbook.bookid + '_');
if (patt.test(footprints[_start])) {
//sole.debug(currbook.id + '_' + ', value:' + footprints[_start]);
tinue;
}
newfootprints[newidx++] = foo