Iframe in asp page

I am trying to add an iframe for an external web page our users access frequently on a tab in CRM I have tried custom url and it works but its very clunky so I wanted to make it neater it should show on a tab in My CRM so I have created the asp page in the System folder within custom pages.

Can anyone see where I am going wrong?

<!-- #include file="..\eware.js" -->

<%

var TimeTac = eWare.GetBlock('Content');
container = eWare.GetBlock('container');

TimeTac.contents = '<iframe src="">go.timetac.com/.../iframe>';
Container.AddBlock(TimeTac);

eWare.AddContent(container.Execute(record));

Response.Write(eWare.GetPage());

%>