$(document).ready(function()
{
    $('#add_row').click(function()
    {
        var table = document.getElementById('job');
        var tr = document.createElement('tr');
        tr.innerHTML = '<td><input name="edit_in_1" type="text" size="40"></td>\n\
                        <td><input name="edit_in_2" type="text" size="40"></td>\n\
                        <td></td>';
        table.appendChild(tr);
        return false;
    });
});

<?=Form::image('submit', 'picture', array('src'           => 'media/Img/save.png',
                                                      'onmouseover'   => 'this.src=\'/media/Img/save_click.png\';',
                                                      'onmouseout'    => 'this.src=\'/media/Img/save.png\';',
                                                     )
                          )?>

            .sendsubmit
{
    height: 50px; // высота кнопки
    width:  70px;  // длина кнопки
    margin: 0;
    padding:0;
    border: 0;
    background: transparent url('save.png') no-repeat center top;
    text-indent: -1000em;
    cursor: pointer; 
    cursor: hand;
}
        

<input type="submit" name="save" class="sendsubmit" value="Absenden2"/>

<td><input name='save' type='submit' class='btn_save' value='                 '></td>

.btn_save
{
    height: 25px; // высота кнопки
    width:  70px;  // длина кнопки
    margin: 0;
    padding:0;
    border: 0;
    background: url('/media/Img/save.png');
    cursor: pointer; 
}
.btn_save:hover
{
    height: 25px; 
    width:  70px;  
    margin: 0;
    padding:0;
    border: 0;
    background: url('/media/Img/save_click.png');
    cursor: pointer;     
}