If statement error in aspx page

I am doing product page and I want there "You maybe need also these products".

For example if productID is 2 then show me link to productID 5.

I have tried to do it with this:

<% if(Item.ProductID == 2) { %>
                    <a href="ProductDetails.aspx?productID=5">
                        <img src="/Catalog/Images/suihkukaappi.png"
                            width="100" height="75" style="border: solid" /></a>
                    <% } %>

But it give me error "The name 'Item' does not exist in current context." And link works fine if I take this if statement off but same link is every product page.

And here is my code inside ItemTemplate from aspx page:

<ItemTemplate>
        <div>
            <h1><%#:Item.ProductName %></h1>
        </div>
        <br />
        <table>
            <tr>
                <td>
                    <img src="/Catalog/Images<%#:Item.ImagePath %>" style="border:solid; height:150px; width:175px;" alt="<%#:Item.ProductName %>"/>
                </td>
                <td>&nbsp;</td>  
                <td style="vertical-align: top; text-align:left;">
                    <b>Tuoteselostus:</b><br /><%#:Item.Description %>
                    <br />
                    <span><b>Hinta:</b>&nbsp;<%#: String.Format("{0:c}", Item.UnitPrice) %></span>
                    <br />
                    <span><b>Tuotenumero:</b>&nbsp;<%#:Item.ProductID %></span>
                    <br />
                </td>
            </tr>
            <tr>
                <td>&nbsp;</td>
            </tr>
            <tr>
                <td>
                    <% if(Item.ProductID == 2) { %>
                    <a href="ProductDetails.aspx?productID=5">
                        <img src="/Catalog/Images/suihkukaappi.png"
                            width="100" height="75" style="border: solid" /></a>
                    <% } %>


                </td>
            </tr>
        </table>
    </ItemTemplate>