JavaScript DHTML/Security/Text Reverse

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This will reverse any text that you enter into it

   <source lang="html4strict">

<html> 

 <head>
   
   <script language="JavaScript">
     function reverse() {
       text = "";
       str = document.forms[0].elements[0].value=document.forms[0].elements[0].value;
       for (i = 0; i <= str.length; i++)
       text = str.substring(i, i+1) + text;
       document.forms[0].elements[0].value = document.forms[0].elements[0].value = text;
     }
   </script>
 </head>
 <body bgcolor=#FFFFFF alink=#C0C0C0 link=#C0C0C0 vlink=#C0C0C0>

     This will reverse any text that you enter into it.
     


     <form>
       <textarea rows=10 cols=40 wrap="soft"></textarea>

       <input type=button value="Reverse" onClick="reverse()">
     </form>

 </body>

</html> 

      </source>
Источник — «http://www.wbex.ru/index.php?title=JavaScript_DHTML/Security/Text_Reverse&oldid=3669»