jquery冲突怎么办？

用了绿色的红色的就不能用 用了红色的绿色的就用不了
<script src="js/jquery.js" type="text/javascript"></script>

                     <script type="text/javascript" src="js/jquery.treeview.js"></script>
                     <script type="text/javascript" src="js/toolbar.js"></script>

    <script type="text/javascript" src="js/ui.core.js"></script>
    <script type="text/javascript" src="js/ui.accordion.js"></script>
    <link type="text/css" href="style/demos.css" rel="stylesheet" />
    <link type="text/css" href="style/ui.all.css" rel="stylesheet" />
    <script type="text/javascript">
    $(function() {
        $("#accordion").accordion();
    });
    </script>