Hai I am having a form which contains a filetype like this on submit i am calling a script

function addRowToTable()
    {
        var tbl = document.getElementById('uploadTab');
        var lastrow = tbl.rows.length;
        var iteration = lastrow; 
        var row = tbl.insertRow(lastrow);

        var cell2 = row.insertCell(0);
        var e2 = document.createElement('input');
        e2.type = 'file';
        e2.name = 'ufile[]';
        e2.id = 'ufile[]';
        e2.size='50';
        cell2.appendChild(e2);
    }

This script generates The tr on a button click... In my view generatedsource tool i get the "" like this

<tr><td><input size="50" id="ufile[]" name="ufile[]" type="file"></td></tr>

when i submit the form i dont get the file name for the generated file type in my view page But i get the file name foe the one that is default What may be the problem?