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ASP.NET - Add Attributes To All Text Boxes On Page

I have this code, and it works:
With Me
            .txtFullName.Attributes.Add("onfocus", "this.style.backgroundColor='#F4EDBD';")
            .txtFullName.Attributes.Add("onblur", "this.style.backgroundColor='#FFFFFF';")
        End With

I want to do this with ALL text boxes on the page though.  How can I loop through all the controls and do this just for the text boxes so I want have to manually type all the ID names for the text boxes?  I have my code in the Page_Load event.
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M3mph15
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Dim c As Object    
        For Each c In Page.Controls
              'TextBox
             If (c.GetType().ToString().Equals("System.Web.UI.WebControls.TextBox")) Then
                  Dim tb As TextBox = DirectCast(c, TextBox)
                  tb.Attributes.Add("onfocus", "this.style.backgroundColor='#F4EDBD';")
                  tb.Attributes.Add("onblur", "this.style.backgroundColor='#FFFFFF';")
               End If
         Next
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ASKER

I put this code in the Page Load event.  It's the only code in that event.  And it doesn't work on the page.  I tested in Firefox, IE, Safari...Javascript enabled in all browsers.
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M3mph15
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Yeh thats strange. Ah well you got it working now.