protected void ButtonDelete_Click(object sender, EventArgs e)
{
 string id = string.Empty;
 //loop the GridView Rows
 for (int i = 0; i < GridView1.Rows.Count; i++){
      RadioButton rd= (RadioButton )GridView1.Rows[i].Cells[0].FindControl("radiobutton1"); //find the button
      if (rd.Checked)
      {
          id = GridView1.Rows[i].Cells[0].Text; // get the id of the field to be deleted
       }
 }

I'm trying to get the selected value of a datepicker within document ready javascript:

My datepicker:
<telerik:RadDatePicker runat="server" ID="rdpDate" ClientIDMode="Static" Width="100">
	<ClientEvents OnDateSelected="rdpDate_DateSelected" />
	<Calendar runat="server" ID="cDate">
		<SpecialDays><telerik:RadCalendarDay repeatable="Today" Date="" ItemStyle-CssClass="rcToday" /></SpecialDays>
	</Calendar>
</telerik:RadDatePicker>

document.ready:
<telerik:RadCodeBlock ID="rcb" runat="server">
	<script type="text/javascript">
		$(function () {
			var datepicker = $find("<%= rdpDate.ClientID %>");
			console.log(datepicker);

I'm getting "null".

What am I doing wrong?

<Tel:RadButton ID="RadButton1" runat="server" ButtonType="LinkButton" Text=" this is for test" Height="30" >

<Icon PrimaryIconUrl="~/Images/Text.png" SecondaryIconUrl="~/Images/Tiff.png" />

</Tel:RadButton>

<Tel:RadButton ID="RadButton2" runat="server" Width="80" Text=" this is for test2" Height="30" >

<Image ImageUrl ="~/Images/Text.png" DisabledImageUrl="~/Images/Tiff.png" />

</Tel:RadButton>
and

<Tel:RadButton runat="server" ID="btn1" EnableBrowserButtonStyle="true" Text="test" Height="30"

BorderStyle="None" />

please help on this.

Thanks,
Srinivas