modal popup does not working in master page

hi
i have masterpage default.master:
in which i have i have <li> tag and <div> 
i want to open <div> as a popup on <li> click 
for that i have done:
<html>
<head runat="server">
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" /> <script type ="text/javascript" src="http://code.jquery.com/jquery-1.9.1.js"></script> <script type ="text/javascript" src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script> <link rel="stylesheet" href="/resources/demos/style.css" />
</head>
<body>
<li id ="createevent"><a href="#"><span class="cal icon">Notifications</span> <span class="num"> </span> < ...