how do you check a url and make it case insensitve?


I have a function that checks a url and see if it contains specific characters.  My problem is that sometimes the url is in uppercase and some times  its in lower case.

Is it possible to have the function case insensitive?

This is what I have so far


<script type="text/javascript">
        $(document).ready(function () {
  var url = window.location.href;
if (url.indexOf("id_")>-1 || url.indexOf("con_id_") > -1)
  var num = url.replace("con_id","").replace("id_","");
  alert("Found it");

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var url = window.location.href.toLowerCase();

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