| 14a15,50 |
| > if (targetPage != "" && !validURL(targetPage)) |
| > targetPage = "undefined"; |
| > function validURL(url) { |
| > var pos = url.indexOf(".html"); |
| > if (pos == -1 || pos != url.length - 5) |
| > return false; |
| > var allowNumber = false; |
| > var allowSep = false; |
| > var seenDot = false; |
| > for (var i = 0; i < url.length - 5; i++) { |
| > var ch = url.charAt(i); |
| > if ('a' <= ch && ch <= 'z' || |
| > 'A' <= ch && ch <= 'Z' || |
| > ch == '$' || |
| > ch == '_') { |
| > allowNumber = true; |
| > allowSep = true; |
| > } else if ('0' <= ch && ch <= '9' |
| > || ch == '-') { |
| > if (!allowNumber) |
| > return false; |
| > } else if (ch == '/' || ch == '.') { |
| > if (!allowSep) |
| > return false; |
| > allowNumber = false; |
| > allowSep = false; |
| > if (ch == '.') |
| > seenDot = true; |
| > if (ch == '/' && seenDot) |
| > return false; |
| > } else { |
| > return false; |
| > } |
| > } |
| > return true; |
| > } |
