i need a code for, when i select a value addcurrency in dropdown list box, then one poup window should come to add currency.here i tried my jquery script but not working.

<script src="scripts/jquery.min.js"></script> 

<script src="scripts/jquery.dialog.min.js"></script> 

<script>

function currency_fun(ch)

{

if(ch=='add_cur')

{

//window.location.replace("addcurrency.php");

$(function(){

$("#t").onclick(function(){

$.dialog({

mask:false,

height:'auto',

title:'Add Bank Account',

html:"<form id='fm' name='fm' method='post' action='addbankacc.php'onsubmit='return(validate()); '><div class='fitem'>Your Bank:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input name='bankname' onKeyUp='disabletest()' ><span id='bn'></span></div><div class='fitem'>Account Name:&nbsp;&nbsp;&nbsp;<input name='acname'><span id='acname'></span></div><div class='fitem'><div class='fitem'>Account Number:<input name='acno' ><span id='acno'></span></div><div>Currency:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<select name='currency'><option value='Rupee'>RUPEE</option></select></div><br><input type='submit' id='submit'  value='Save' name='submit'><button type='reset' id='cancel'  value='cancel' name='cancel'> Cancel</button></form>",

callback:function(){

console.log('CALLBACKS')

}

});

});

});

}

}

HTML: