HI i am trying to get value from a url

HI i am trying to get value from a url

my problem

i have a url which returns a random number every time request went to it.i am trying to get the value using ajax response.

my html code.

<button class="button" type="button" name="buttonpassvalue" id="random" >Get Random Number</button> 
<div id="number"></div>

My script is

<script type="text/javascript">
$(document).ready(function() { 
$("#random").click(function() {
$.ajax({
    type: 'GET',
    url: 'http://202.131.103.198:8888/poll/get-random',
data: datastring,
    success: function(result) {
        $("#number").html(result);
    }
});
});
});