function writePages (n_pages) {
var n_links = 5;
// get the url of the page
var s_fullPath = window.location;
// extract the path, prefix, index and ext.
var re_fileName = /([^\/]+)$/;
var re_nameIdxExt = /^(.+?)(\d+)(\..+)$/;
if (!re_fileName.exec(s_fullPath)) return;
var s_fileName = RegExp.$1;
var s_filePath = RegExp.leftContext;
if (!re_nameIdxExt.exec(s_fileName)) return;
var s_prefix = RegExp.$1,
n_index = Number(RegExp.$2),
s_ext = RegExp.$3;
if (n_links) {
if (n_links > n_pages)
n_links = n_pages;
var n_sideLinks = Math.floor((n_links - 1) / 2),
n_firstLink, n_lastLink;
if (n_index + n_sideLinks >= n_pages) {
n_firstLink = n_pages - n_links + 1;
n_lastLink = n_pages;
}
else if (n_index - n_sideLinks <= 0) {
n_firstLink = 1;
n_lastLink = n_links;
}
else {
n_firstLink = n_index - n_sideLinks;
n_lastLink = n_firstLink + n_links - 1;
}
for (var i = n_firstLink; i <= n_lastLink; i++)
document.write('page '+i == n_index ? i + '
' : 'page '+ i + '
');
}
}