Get the name and text of the button in ASP.Net Repeater using JavaScript

To each Button add OnClientClick event

    <script type="text/javascript">
        function GetText(btn) {
            alert(btn.value);
            return false;
        }
    </script>
    <asp:Button ID="Button2" runat="server" Text="1" OnClientClick = "return GetText(this)" />
    <asp:Button ID="Button1" runat="server" Text="2" OnClientClick = "return GetText(this)" />