How to find textareas in a page

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jQuery

Hi guys am back with another question

i have a jquery to find the first textarea in a page and replace it with a html editor..it works fine if there is only one textarea in the page.. Now i want to know how can i put the same editor in 3 different places in the same page. The jquery i am now using is this

<script type="text/javascript">
       $(document).ready(function () {
           jQuery.CcEditorPlugin($("textarea:first"), {
               style: "css/jquery.sceditor.default.min.css"
           });
       });
       $(document).ready(function () { $('iframe').contents().find('body')[0].innerHTML = document.getElementById('html_field').value; MatchHeights() });      

</script>

Please help me out .. Its very urgent