# Avoid XSS attacks..
my ($url)=$params{html}=~m#iframe\s+src="http://www\.google\.com/calendar/embed\?([^"<>]+)"#;
if (! defined $url || ! length $url) {
# Avoid XSS attacks..
my ($url)=$params{html}=~m#iframe\s+src="http://www\.google\.com/calendar/embed\?([^"<>]+)"#;
if (! defined $url || ! length $url) {