Pass parameter from gridView to Javasript function

[tinh khau]

My friend;
Please help. The green line below is working with a hardcode ApplicantId, and all I need is to make it work by passing the current ApllicantId column on the same gridrow.

I tried for many days now, and something like the red line does not work for me.
Please help. .NET sometime is too much %&^# for me.

-------------------------------------------
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
DataKeyNames="ApplicantID" >
<Columns>

<asp:TemplateField HeaderText="Select">
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" />
</ItemTemplate>
</asp:TemplateField>

[working] <asp:HyperLinkField NavigateUrl="javascript:popUp(3)" Text="Select" Target="_parent"/>

[not working]
<asp:HyperLinkField NavigateUrl='"javascript:popUp("<%# + DataBinder.Eval(GridView1.DataItem,"ApplicantId") %> + ")"' Text="View" />

</Columns>
</asp:GridView>