javascript: Convert special characters to HTML

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">

 <head>
 <meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
 <title>Unicode to HTML converter</title>
 </head>

 <body>
 <div id="main">
 <script type="text/javascript" charset="utf-8">
 //from: http://www.unicodetools.com/unicode/convert-to-html.php
 function a(b) {
     var c= '';
     for(i=0; i<b.length; i++){
         if(b.charCodeAt(i)>127){ c += '&#' + b.charCodeAt(i) + ';'; }else{ c += b.charAt(i); }
       }
       document.forms.conversionForm.outputText.value = c;
 }
 function sampleText(){
     document.forms.conversionForm.inputText.value = "Thére Àre sôme spëcial charâcters ïn thìs têxt 塗聚文";
 }
 </script>
 <h2>Convert special characters to HTML</h2>
 <p>
 With this tool you are able to encode special characters (chars like 'áèïüñ' '塗聚文'...)
 to HTML code. The advantage of using special HTML codes instead of the normal characters is
 that the HTML codes will be readable by most users, no matter what charset is used.</p>
 <p>
 Copy your normal text below. <a href="javascript:sampleText()">Insert sample text</a><br/>
 <form name="conversionForm" method="post">
 <textarea name="inputText" style="width:400px;height:200px;"></textarea><br/>
 <input type="button" name="convert" value="Convert" onclick="a(document.forms.conversionForm.inputText.value)"/>
 <br/><br/>Your HTML encoded text:<br/>
 <textarea name="outputText" readonly="readonly" style="width:400px;height:200px;"></textarea><br/>
 </form>
 </p>
 </div>
 </body>

 </html>