Jquery didnt fired on button click event

Jquery didnt fired on button click event

I used the following code...

I want  an aler msg on button click...But it doesnt work.. help me to find out the mistake...Iam Biginner   

I used the following........



<script type="text/javascript">

$("#Button1").click(function()
 {
    alert("hi");
 });
 
</script>





 <asp:Button ID="Button1" runat="server" Text="Button"  />