diff -r b8e5f8f9c77b -r f866267d7b3c vstup/js/skript.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vstup/js/skript.js	Wed Jan 11 17:01:59 2012 +0100
@@ -0,0 +1,41 @@
+/**
+ * XML Web generátor – program na generování webových stránek
+ * Copyright © 2012 František Kučera (frantovo.cz)
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * XML Web generátor – jmenný prostor 
+ */
+var xwg = { 
+	/**
+	 * Zašifruje/dešifruje obsah elementu pomocí Rot13.
+	 * @param id ID elementu, jehož text chceme změnit.
+	 */
+	rot13: function(id) {
+		var e = document.getElementById(id);
+		e.textContent = e.textContent.rot13();
+	}
+};
+
+/**
+ * Vrací hodnotu textového řetězce zašifrovanou/dešifrovanou algoritmem Rot13 
+ */
+String.prototype.rot13 = function() {
+	return this.replace(/[a-zA-Z]/g, function(z) {
+		return String.fromCharCode((z <= "Z" ? 90 : 122) >= (z = z.charCodeAt(0) + 13) ? z : z - 26);
+	});
+};
+