ændring af variabel vha af knap

Variablen "sti" skal ændres hvis brugeren trykker på en af de to knapper i body. variablen sti skal så indgå i Tree arrayet.

Har selv prøvet lidt, men det virker ikke - er ikke den store javascript HAJ :-)


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
<head>
    <link rel="StyleSheet" href="../../stylescheet/menu.css" type="text/css">
    <script type="text/javascript" src="tree.js"></script>
    <script type="text/javascript">
        var mp1="forside";
        var sti = "../../include/upload/upload.php?niveau1="
       
        function uploadSTI(){
        <!-- Stien til opload.php
        var sti = "../../include/upload/upload.php?niveau1=";
        }
        function updateSTI(){
        <!-- Stien til opload.php
        var sti = "../../include/update/update.php?niveau1=";
        }
       
       
        var Tree = new Array;
        // nodeId | parentNodeId | nodeName | nodeUrl
        Tree[0]  = "1|0|"+mp1+"|"+sti+""+mp1+"&&niveau2=&&niveau3=&&niveau4=&&niveau5=&&overskrift_upload=true&&billed_upload=true&&video_upload=true&&word_upload=true&&pdf_upload=true&&pris_upload=false";
        Tree[1]    = "2|1|Page 1.1|#";
        Tree[2]  = "3|1|Page 1.2|#";
        Tree[3]  = "4|3|Page 1.2.1|#";
        Tree[4]  = "5|1|Page 1.3|#";
        Tree[5]  = "6|2|Page 1.1.1|#";
        Tree[6]  = "7|6|Page 1.1.1.1|#";
        Tree[7]  = "8|6|Page 1.1.1.2|#";
        Tree[8]  = "9|1|Page 1.4|#";
        Tree[9]  = "10|9|Page 1.4.1|#";
       
        Tree[10] = "11|0|Page 2|#";
        Tree[11] = "12|1|Page 2|#";
        Tree[12] = "13|0|Page 2|#";
        //-->
    </script>
</head>

<body>
<a href="#"  onClick="updateSTI()" >UPDATE</a>
<a href="#" onClick="uploadSTI()" >UPLOAD</a>
<div class="tree">
<script type="text/javascript">
<!--
    createTree(Tree);
//-->
</script>
</div>

</body>
</html>