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<html>
<head>
<script language="javascript">

   function vnesiZaporedje()
   {
      prompt("Vnesi zaporedje");
   }
 function vnesiDelZaporedja()
   {
      zacetekZaporedja=prompt("Vnesi del zaporedja,ki te zanima");
   }


</script>

</head>
<body>

<script language="javascript">
<!--
  vnesiZaporedje();
  vnesiDelZaporedja();
 var  zacetekZaporedja;
  indexOf(zacetekZaporedja.value);
// -->
</script>
<body>
</body>
</head>
</html>