//--------------------------------------------------------------------------------------------------
// All material contained within this and associated downloaded pages is the property of 4thorder(TM) 
// Copyright © 2005.  All rights reserved.
//
// Author: Michael Falatine || Authors email: 4thorder@4thorder.us
//
// USAGE: You may use this script for commercial or personal use, however, the copyright is retained-
// by 4thorder (TM).
//
// For other free Scripts visit: http://www.4thorder.us/Scripts/
//---------------------------------------------------------------------------------------------------

// :::::::::::::::::::::::::
// :::: Global Variables :::
// :::::::::::::::::::::::::

var firstLoad = 0;
var GlobalECState = 0; // 0=collapsed, 1=expanded; used for inital state of ALL branches

// :::::::::::::::::::::::::
// :::: Global Functions :::
// :::::::::::::::::::::::::
function InitializePage() {
    Headers();
    attachEventhandlers();
}

// Attach event handlers to all images within container
function attachEventhandlers() {
    mainTABLEElement = document.getElementById("mainTable");
    TABLECollection = mainTABLEElement.getElementsByTagName("TABLE");

    if (TABLECollection != null) {
        for (l = 0; l < TABLECollection.length; l++) {
            THCol = TABLECollection.item(l).getElementsByTagName("TH");
            THCol.item(0).onclick = onclickHandler;
        }
    }
}

function Headers() {
    mainTABLEElement = document.getElementById("mainTable");
    TABLECollection = mainTABLEElement.getElementsByTagName("TABLE");

    if (TABLECollection != null) {
        for (z = 0; z < TABLECollection.length; z++) {
            TRCol = TABLECollection.item(z).getElementsByTagName("TR");
            THCol = TABLECollection.item(z).getElementsByTagName("TH");

            if (firstLoad == 0) {	 // Yes: FIRST LOAD OF PAGE - set inital ECState
                if (GlobalECState == 0) {// Global ECState is COLLAPSED (+) (0)				
                    THCol.item(0).setAttribute("ECState", 0);
                    for (j = 1; j < TRCol.length; j++) {
                        TRCol.item(j).style.display = 'none';
                    }
                }
                else {// Global ECState is EXPANDED (-) (1)
                    THCol.item(0).setAttribute("ECState", 1);
                    for (k = 1; k < TRCol.length; k++) {
                        TRCol.item(k).style.display = 'block';
                    }
                }
            }
            else  	// No: FIRST LOAD OF PAGE - change ECState
            {	// Grab ECState and expand or collapse branch
                State = THCol.item(0).getAttribute("ECState");
                if (State == 0) {
                    // ECState is COLLAPSED (+) (0)
                    for (l = 1; l < TRCol.length; l++) {
                        TRCol.item(l).style.display = 'none';
                    }
                }
                else {
                    // ECState is EXPANDED (-) (1)
                    for (m = 0; m < TRCol.length; m++) {
                        TRCol.item(m).style.display = 'block';
                    }
                }
            }
        }
    }
    if (firstLoad == 0) { firstLoad = 1; }
}

// ::::::::::::::::::::::::
// :::: Event Handlers ::::
// ::::::::::::::::::::::::

function onclickHandler(e) {
    // Browser compatibility code
    var targ;
    if (!e) var e = window.event;
    if (e.target) targ = e.target;
    else if (e.srcElement) targ = e.srcElement;
    if (targ.nodeType == 3) // defeat Safari bug
        targ = targ.parentNode;

    // Toggle ECState
    State = targ.getAttribute("ECState");
    //alert(''+State);
    if (State == 0)
    { targ.setAttribute("ECState", 1); }
    else { targ.setAttribute("ECState", 0); }
    Headers();
}