Uncaught TypeError: $(...).dynDateTime i

Question

<script type="text/javascript">

$(document).ready(function () {

$("#<%=TextBox2.ClientID %>").dynDateTime({

showsTime: true,

ifFormat: "%Y/%m/%d %H:%M",

daFormat: "%l;%M %p, %e %m, %Y",

align: "BR",

electric: false,

singleClick: false,

displayArea: ".siblings('.dtcDisplayArea')",

button: ".next()"

});

});

</script>

<script type="text/javascript">

$(document).ready(function () {

$("#<%=TextBox3.ClientID %>").dynDateTime({

showsTime: true,

ifFormat: "%Y/%m/%d %H:%M",

daFormat: "%l;%M %p, %e %m, %Y",

align: "BR",

electric: false,

singleClick: false,

displayArea: ".siblings('.dtcDisplayArea')",

button: ".next()"

});

});

</script>

<script type="text/javascript">

function testing() {

var startDate = document.getElementById('<%= TextBox2.ClientID %>').value;

var endDate = document.getElementById('<%= TextBox3.ClientID %>').value;

if ((Date.parse(endDate) <= Date.parse(startDate))) {

alert("End date should be greater than Start date");

document.getElementById('<%= TextBox3.ClientID %>').value = "";

}

}

</script>

This code locally runs well but on live it gives that error 
Add New CP.aspx:402 Uncaught TypeError: $(...).dynDateTime is not a function