Remove default JavaScript code

Hi, I am new to Drupal and have a very basic doubt. I am seeing the following javascript code and files in my browser "view page source",

<script type="text/javascript" src="http://localhost/drupal/misc/jquery.js?v=1.4.4"></script>
<script type="text/javascript" src="http://localhost/drupal/misc/jquery.once.js?v=1.2"></script>
<script type="text/javascript" src="http://localhost/drupal/misc/drupal.js?lnce94"></script>
<script type="text/javascript" src="http://localhost/drupal/sites/all/modules/panels/js/panels.js?lnce94"></script>
<script type="text/javascript" src="http://localhost/drupal/sites/default/themes/basic/js/script.js?lnce94"></script>
<script type="text/javascript" src="http://localhost/drupal/sites/all/modules/views/js/jquery.ui.dialog.patc..."></script>

<!--//--><![CDATA[//><!--
jQuery.extend(Drupal.settings, {"basePath":"\/drupal\/","pathPrefix":"","ajaxPageState":{"theme":"basic","theme_token":"Tt3RmbTKrnQlXLiBrU-kQ0cLbtWTSxL3kI84vKMkEbI","js":{"misc\/jquery.js":1,"misc\/jquery.once.js":1,"misc\/drupal.js":1,"sites\/all\/modules\/panels\/js\/panels.js":1,"0":1,"sites\/default\/themes\/basic\/js\/script.js":1,"sites\/all\/modules\/views\/js\/jquery.ui.dialog.patch.js":1},"css":{"modules\/system\/system.base.css":1,"modules\/system\/system.menus.css":1,"modules\/system\/system.messages.css":1,"modules\/system\/system.theme.css":1,"modules\/comment\/comment.css":1,"modules\/field\/theme\/field.css":1,"modules\/node\/node.css":1,"modules\/poll\/poll.css":1,"modules\/search\/search.css":1,"modules\/user\/user.css":1,"sites\/all\/modules\/views\/css\/views.css":1,"sites\/all\/modules\/ubercart\/uc_order\/uc_order.css":1,"sites\/all\/modules\/ubercart\/uc_product\/uc_product.css":1,"sites\/all\/modules\/ubercart\/uc_store\/uc_store.css":1,"sites\/default\/themes\/basic\/css\/tabs.css":1,"sites\/all\/modules\/ctools\/css\/ctools.css":1,"sites\/all\/modules\/date\/date_popup\/themes\/datepicker.1.7.css":1,"sites\/all\/modules\/panels\/css\/panels.css":1,"sites\/all\/modules\/panels\/plugins\/layouts\/twocol\/twocol.css":1,"public:\/\/ctools\/css\/c16f5a5bff6a35906ec63e710eff83fe.css":1,"sites\/all\/modules\/panels\/plugins\/layouts\/onecol\/onecol.css":1,"sites\/all\/modules\/date\/date_api\/date.css":1,"sites\/default\/themes\/basic\/css\/default.css":1,"sites\/default\/themes\/basic\/css\/layout.css":1,"sites\/default\/themes\/basic\/css\/style.css":1,"sites\/default\/themes\/basic\/css\/print.css":1,"sites\/default\/themes\/basic\/css\/header.css":1}}});
//--><!]]>

I want to keep very minimal javascript in my pages, can someone help me out in identifying the javascript codes and files that I can remove safely without breaking my page.