Hi,
1. Use LinkButton to insert your icon
<asp:LinkButton ID="lnkSave" runat="server" class="btn btn-primary">
<span class="glyphicon glyphicon-ok"></span> Save
</asp:LinkButton>
2. Initialize the DatePicker Plugin using jquery
3-4. Follow the number 1.
5. --
6. Create a function the will have, SUCCESS, PRIMARY, INFO & DANGER. Then call the function and submit to LABEL TAG
Hope this will help you out!