how do you do this?

[Slynderdale]

How do you do the translation thing like on here? i know the html for it

PHP Code:

<table cellpadding="0" cellspacing="0" border="0">
<tr><td>
<font face="verdana" size="1"><b>Translate Thread:</b><br>
    <select name="lang" onchange="window.location=('http://fets3.freetranslation.com:5081/?Url=$formattedurl&Sequence=core&Language='+this.options[this.selectedIndex].value)">
        <option value="-1" selected>Please select direction:</option>
        <option value="English/Spanish">English to Spanish</option>
        <option value="English/French">English to French</option>
        <option value="English/German">English to German</option>
        <option value="English/Italian">English to Italian</option>
        <option value="English/Norwegian">English to Norwegian</option>
        <option value="English/Portuguese">English to Portuguese</option>
        <option value="Spanish/English">Spanish to English</option>
        <option value="French/English">French to English</option>
        <option value="German/English">German to English</option>
        <option value="Italian/English">Italian to English</option>
        <option value="Portuguese/English">Portuguese to English</option>
    </select></font></td></tr></table> 


my only problem is to format the url for it so ? is %2E and = is %3D and / is %3E
i tried this, but it doesnt work:

PHP Code:

$formattedurl=str_replace("?","%2E",$HTTP_HOST$REQUEST_URI);
  $formattedurl=str_replace("/","%3E",$formattedurl);
  $formattedurl=str_replace("=","%3D",$formattedurl);