Question

I’m trying to modify the post url of a form depending on the name of the file being posted. Any suggestions very much appreciated. Here is the code (which doesn’t work):

<script type="text/javascript">  
    function submit_form()  
    {
        document.uploadform.action = "upload?name=" + document.uploadform.codejar.value;
        return 1;
    }
</script>
<form name="uploadform" method="post" onsubmit="return submit_form();"> 
<table> 
<tr><td>Select your jar to upload</td></tr> 
<tr><td> <input type="file" name="codejar" style="width: 400"></td></tr> 
<tr><td><input type="submit" name="send" value="Upload jar"></td></tr> 
</table> 
</form> 

Answer 1

“I’m trying to get it to do a plain http post of the file, to a url with the filename as a parameter”

Just do this then:

function submit_form()  {
    document.uploadform.action = document.uploadform.codejar.value;
    document.uploadform.submit();
}

…and think about changing your “send” button to

<button type="button" onclick='submit_form()'>Upload jar</button>