Cercare un link in un testo e renderlo cliccabile

[carlomarx]

tuaTextbox.value = tuaTextbox.value.replace(/(http|https|ftp|ftps):\/\/(.*?)(\s|\n|[,.?!](\s|\n)|$)/g, "<a href=\"$1://$2\" rel=\"nofollow\">$1://$2</a>$3");