panel won't open and pageinit won't fire - jquery-mobile

Question

I'm trying to open a jquery mobile panel through code but the method is not recognized.
the error I'm getting is: "Object[object Object} has no method 'panel' "
I have a html page consists of several jquery-mobile div pages and an external javascript file.
this is the js function:
function open_panel() {
var selected_child=$('#kids_select').val();
alert(selected_child);
$("#mypanel").panel("open");
// $("#mypanel").panel().panel("open");
}
$('#mypanel').live('pageinit', function () {
alert("works");
});
I'ts a project started by another student, and he included duplicate js files in the html head section. I guess it's because the old jquery mobile is loaded insted of the 1.3, but when I try to remove some of the references the design gets all messy or some other code isn't recognized.
here's the head section:
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.3.0/jquery.mobile-1.3.0.min.css" />
<script src="http://code.jquery.com/jquery-1.8.2.min.js"></script>
<script src="http://code.jquery.com/mobile/1.3.0/jquery.mobile-1.3.0.min.js"></script>
<link rel="stylesheet" type="text/css" href="http://code.jquery.com/mobile/latest/jquery.mobile.min.css" />
<link rel="stylesheet" type="text/css" href="http://dev.jtsage.com/cdn/datebox/latest/jqm-datebox.min.css" />
<script type="text/javascript" src="http://code.jquery.com/mobile/latest/jquery.mobile.min.js"></script>
<script type="text/javascript" src="http://dev.jtsage.com/cdn/datebox/latest/jqm-datebox.core.min.js"></script>
<script type="text/javascript" src="http://dev.jtsage.com/cdn/datebox/latest/jqm-datebox.mode.calbox.min.js"></script>
<script type="text/javascript" src="http://dev.jtsage.com/cdn/datebox/i18n/jquery.mobile.datebox.i18n.en_US.utf8.js"></script>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<title></title>
<link rel="stylesheet" href="https://ajax.aspnetcdn.com/ajax/jquery.mobile/1.2.0/jquery.mobile-1.2.0.min.css" />
<link rel="stylesheet" href="my.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js">
</script>
<script src="https://ajax.aspnetcdn.com/ajax/jquery.mobile/1.2.0/jquery.mobile-1.2.0.min.js">
</script>
<script src="js/js_functions.js" type="text/javascript"></script>
finnaly I added a href attribute to the 'a' tag pointing the panel and it gets loaded after the function fires up, but the panel's pageinit function won't fire.
I tried:
$('#mypanel').live('pageinit', function () {
alert("works");
});
and:
$('#mypanel').live('pageshow', function () {
alert("works");
});
but that doesn't work
here's the relevant part of the html body: (with the panel)
<div data-role="page" id="mainpage">
<div data-theme="b" data-role="header">
<h3>
Iallow
</h3>
</div>
<div data-role="content" style="text-align: center;">
<div>
<div style="width: 50%; float: left">
<label for="NewkidBTN">
Click to add new kid</label>
<a id="NewkidBTN" data-role="button" data-theme="b" href="#RegisterChild" data-icon="plus"
data-iconpos="right">Add Kid</a>
</div>
<div id="kids_div">
</div>
</div>
<a onclick="open_panel()" href="#mypanel" data-role="button" data-inline="true" data-icon="bars">Add transaction</a>
</div>
<div data-role="panel" id="mypanel">
<h3>enter action</h3>
<select name="select-type" id="select-type" onclick="return select-type_onclick()">
<option value="deposit">deposit</option>
<option value="withdrawal">withdrawal</option>
</select>
<label for="ammount">Write the ammount</label>
<input type="number" data-clear-btn="false" name="ammount" id="ammount" value="">
<label for="desc" class="ui-hidden-accessible">
description:</label>
<input type="text" name="desc" id="descTB" value="" placeholder="description" runat="server" />
<button id="Button1" type="submit" data-theme="b" data-icon="check" runat="server" onclick="transaction">
submit</button>
</div>
edit:
I changed the head section by removing old jquery mobile and jquery.
now the panel loads but the pageinit function I added to the panel won't fire up.
I tried every syntax, such as:
$('#mypanel').live('pageshow', function () {
alert("works");
});
$('#mypanel').live('pageinit', function () {
alert("works");
$('#mypanel').on('pageshow', function () {
alert("works");
});
$('#mypanel').on('pageinit', function () {
alert("works");
});
maybe panels don't work like pages in jquery mobile..
the head now looks like this:
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.3.0/jquery.mobile-1.3.0.min.css" />
<script src="http://code.jquery.com/jquery-1.8.2.min.js"></script>
<script src="http://code.jquery.com/mobile/1.3.0/jquery.mobile-1.3.0.min.js"></script>
<!--<link rel="stylesheet" type="text/css" href="http://code.jquery.com/mobile/latest/jquery.mobile.min.css" />-->
<link rel="stylesheet" type="text/css" href="http://dev.jtsage.com/cdn/datebox/latest/jqm-datebox.min.css" />
<!--<script type="text/javascript" src="http://code.jquery.com/mobile/latest/jquery.mobile.min.js"></script>-->
<script type="text/javascript" src="http://dev.jtsage.com/cdn/datebox/latest/jqm-datebox.core.min.js"></script>
<script type="text/javascript" src="http://dev.jtsage.com/cdn/datebox/latest/jqm-datebox.mode.calbox.min.js"></script>
<script type="text/javascript" src="http://dev.jtsage.com/cdn/datebox/i18n/jquery.mobile.datebox.i18n.en_US.utf8.js"></script>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<title></title>
<!--<link rel="stylesheet" href="https://ajax.aspnetcdn.com/ajax/jquery.mobile/1.2.0/jquery.mobile-1.2.0.min.css" />-->
<!--<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js">
</script>-->
<!--<script src="https://ajax.aspnetcdn.com/ajax/jquery.mobile/1.2.0/jquery.mobile-1.2.0.min.js">
</script>-->
<script src="js/js_functions.js" type="text/javascript"></script>