Hi,
Try this-
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.5.js" type="text/javascript"></script>
<script type="text/javascript">
var dropdownIDsArray = new Array();
$(document).ready(function () {
dropdownIDsArray = $.map($("div[id*=listState]").find("select"), function (item, index) {
return $(item).attr("id");
});
debugger;
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div id="listState">
<select id="myDDL" ></select>
<br />
<select id="other"></select>
</div>
</form>
</body>
</html>