/**
 * Strips illegal SiteStat characters.
 *
 * @param   string  a   The string to strip.
 * @return  string     
 */
function _siteStatStrip(a)
{
     // Remvove " and '.
    a = a.replace(/\"/g, '');
    a = a.replace(/\'/g, '');
    
    // Trim leading and trailing white space.
    a = a.replace(/^\s+|\s+$/g, '');
    
    // Replace anything that's not a letter or number with a '-'.
    a = a.replace(/[^a-zA-Z0-9]+/g, '-');
    
    // Lowercase everything.
    a = a.toLowerCase();

    // Return the formatted string.
    return a;
}