How to get an iframe to open in new window.

I am trying to get an iframe to open in a new window when I click on the item in the datatable. All I can get it to do right now is open on the same page. Code is below.

 Private Sub gvJobs_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles gvJobs.SelectedIndexChanged
       Dim mySelection As String = gvJobs.DataKeys(gvJobs.SelectedIndex).Value.ToString
       Dim mySite = New SPSite(sSite)
       Dim myWeb As SPWeb = mySite.OpenWeb()
       Dim myList As SPList
       Dim dtTable As DataTable
       Dim myView As DataView
       Dim myPath As String
       myList = myWeb.Lists("Jobs")
       dtTable = myList.Items.GetDataTable
       myView = dtTable.DefaultView
       myView.RowFilter = "ID = '" & mySelection & "'"
       myPath = sSite & "Jobs/" & myView.Item(0)("LinkFileName").ToString
       frame1 = CType(Me.FindControl("DocViewer"), HtmlControl)
       frame1.Attributes("src") = myPath
       lblName.Text = myView.Item(0)("Position").ToString
       lblPosition.Text = myView.Item(0)("Position").ToString
       pnlDoc.Visible = False
       pnlList.Visible = False
       pnlApply.Visible = True
       pnlQ1.Visible = True
       pnlQ2.Visible = False
       pnlQ3.Visible = False
       pnlQ4.Visible = False
       pnlQ5.Visible = False
       pnlQ6.Visible = False
       pnlQ7.Visible = False
       pnlQ8.Visible = False
       pnlQ9.Visible = False
       pnlQ10.Visible = False
       radType.SelectedIndex = -1
   End Sub