bdy         = null;
width       = 0;
height      = 0;
content     = null;
menu_list   = null;
page_name   = null;
nodeOpenClass = "liOpen";

function initialize() {
    bdy         = document.getElementById("bdy");
    content     = document.getElementById("content");
    menu_list   = document.getElementById("menu_list");
    getSize();
    resizeContent();
    window.onresize= resizeContent; 
    
    // use the pagename variable to set open foldies
    expandToItem("tree1", page_name);
    document.getElementById(page_name).className=nodeOpenClass;
}


function resizeContent() {
    getSize();
    content.style.height = height-80;
    menu_list.style.height = height-260;
}

function getSize() {
    var myWidth = 0, myHeight = 0;
    if( typeof( window.innerWidth ) == 'number' ) {
        //Non-IE
        myWidth = window.innerWidth;
        myHeight = window.innerHeight;
    } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
        //IE 6+ in 'standards compliant mode'
        myWidth = document.documentElement.clientWidth;
        myHeight = document.documentElement.clientHeight;
     } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
        //IE 4 compatible
        myWidth = document.body.clientWidth;
        myHeight = document.body.clientHeight;
    }
    width = myWidth;
    height = myHeight;
}

function isInternetExplorer() {
    if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
        //IE 6+ in 'standards compliant mode'
        return true;
    } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
        return true;
    } else {
        return false;            
    }
}