dynamically generated linkbutton id not get in javascript

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ASP.NET

Javascript

hi......

I am generating dyanmic link buttons in master page.I am try to access this button javascript.i am writting code in javascript to list out all controls on the form but i am not got the id of this button in javascript.i am assign ClientIdMode to button as static but still not able to find.provide soln for it.
my code is

code behind:

Private Sub genBtn(ByVal btnText As String)

        Dim b As New LinkButton
        
        b.Attributes.Add("OnClick", "setMode('" + btnText + "')")
        b.Text = btnText + " "
        b.ID = "btn" + btnText
        b.Height = 23
        b.BorderStyle = BorderStyle.None
        b.ClientIDMode = UI.ClientIDMode.Static
        b.Font.Bold = True
        b.Font.Name = "comic Sans MS"
        b.Font.Size = "11"
        b.ForeColor = Drawing.Color.White
        'b.Enabled = True
        b.Attributes.Add("style", "cursor:hand")
        modeTd.Controls.Add(b)
        ModeBtnCnt = ModeBtnCnt + 1
        AddHandler b.Click, EnableDisabledMenu()
        If ModeBtnCnt = 1 Then
            hdnModeList.Value = b.ID
        Else
            hdnModeList.Value = hdnModeList.Value + "," + b.ID
        End If
       
    End Sub

javascript code is:

for (var i = 0; i < document.forms(0).elements.length; i++) {
        alert(document.forms(0).elements(i).name);
    }