public String getRandomContent ()
{
int len = content.ToString ().Length - 100;
if (len <= 20) {
return content.ToString ();
}
int s = cran.Next (len);
if (s < 0) {
s = 0;
}
if (s > len) {
s = len;
}
int count = content.ToString ().Length - s;
if (count > 200) {
count = 200;
}
return content.ToString ().Substring (s, count);
}