difficulties on locating javascript and css codeigniter

difficulties on locating javascript and css codeigniter

Hi how can i aces in view model i saved my css and javascript inside the
js folder and css folder inside the application in codeigniter how can i
aces it i'm having difficulties to link them
<style>
.ui-autocomplete-loading {
background: #fff url('../link/to/ajax-loading-image') right center
no-repeat !important;
}
</style>
//HERE is my PROBLEM
<link href="<?php echo base_url(); ?>./css/jquery.ui.css" rel="stylesheet"
type="text/css" />
<script type="text/javascript" src="<?php echo base_url();
?>/js/jquery.js"></script>
<script type="text/javascript" src="<?php echo base_url();
?>/js/jquery.ui.js"></script>
<input type="text" id="birds" />
<script>
$(function(){
$("#birds").autocomplete({
source: "birds/get_birds" // path to the get_birds method
});
});
</script
it only display white screen tnx in advance guys