ver4 = (NS4 || IE4 || NS6) ? 1 : 0;

if (ver4) {

    with (document) {

        write("<STYLE TYPE='text/css'>");

	if (NS4) {
            write(".parent {position:absolute; visibility:visible}");
            write(".child {position:absolute; visibility:visible}");
            write(".regular {position:absolute; visibility:visible}")

	} else {

		write(".child {display:none}")
        }

	write("</STYLE>");
    }

}

isExpanded = false;

function getIndex(el) {
    ind = null;
    for (i=0; i<document.layers.length; i++) {
        whichEl = document.layers[i];
        if (whichEl.id == el) {
            ind = i;
            break;
        }
    }
    return ind;
}

function arrange() {
    nextY = document.layers[firstInd].pageY + document.layers[firstInd].document.height;
    for (i=firstInd+1; i<document.layers.length; i++) {
        whichEl = document.layers[i];
        if (whichEl.visibility != "hide") {
            whichEl.pageY = nextY;
            nextY += whichEl.document.height;
        }
    }

    nextY = null;
    whichEl = null;

}

function initIt(){

    if (!ver4) return;

    if (NS4) {

	for (i=0; i<document.layers.length; i++) {
            if (document.layers[i].id.indexOf("Child") != -1) {
	    	document.layers[i].visibility = "hide";
	    }
        }

	arrange();

    } else if (IE4) {

        divColl = document.all.tags("DIV");

	for (i=0; i<divColl.length; i++) {
            if (divColl[i].className == "child") {
	    	divColl[i].style.display = "none";
	    }
        }

	divColl = null;

    } else if (NS6) {

        var divColl = document.getElementsByTagName("DIV");

	for (i = 0; i < divColl.length; i++) {
            if (divColl[i].getAttribute("CLASS") == "child") {
		divColl[i].style.display = "hidden";
	    }
        }

	divColl = null;

    }

}

function expandIt(el) {
    if (!ver4) return;
    if (IE4) {
        whichEl = eval(el + "Child");
        //whichIm = event.srcElement;
	divImg = eval(document.images["imEx_" + el]);

        if (whichEl.style.display == "none") {
            whichEl.style.display = "block";
            divImg.src = "images/buttons/arrow-down.jpg";

	} else {

	    whichEl.style.display = "none";
            divImg.src = "images/buttons/arrow-up.jpg";
        }

	whichEl = null;
	divImg = null;

    } else if (NS4) {
        whichEl = eval("document." + el + "Child");

        whichIm = eval("document." + el + "Parent.document.images['imEx_" + el + "']");

	if (whichEl.visibility == "hide") {
            whichEl.visibility = "show";
            whichIm.src = "images/buttons/arrow-up.jpg";
        }
        else {
            whichEl.visibility = "hide";
            whichIm.src = "images/buttons/arrow-down.jpg";
        }

	whichEl = null;
	whichIm = null;

        arrange();

    } else if (NS6) {

	divColl = document.getElementById(el + "Child");
	divImg = document.images["imEx_" + el];

	if (divColl.style.display == "block") {
		divColl.style.display = "none";
		divImg.src = "images/buttons/arrow-up.jpg";
        } else {
		divColl.style.display = "block";
		divImg.src = "images/buttons/arrow-down.jpg";
	}

	divColl = null;
	divImg = null;

    }
}

function expandAll() {

    if (!ver4) return;

    newSrc = (isExpanded) ? "images/buttons/arrow-up.jpg" : "images/buttons/arrow-down.jpg";

    if (NS4) {

        document.images["imEx"].src = newSrc;
        for (i=firstInd; i<document.layers.length; i++) {

	    if (document.layers[i].id.indexOf("Parent") != -1) {
                document.layers[i].document.images["imEx"].src = newSrc;
            }

	    if (document.layers[i].id.indexOf("Child") != -1) {
                document.layers[i].visibility = (isExpanded) ? "hide" : "show";
            }

        }

        arrange();
        if (isExpanded) scrollTo(0,document.layers[firstInd].pageY);

    } else if (IE4) {

	divColl = document.all.tags("DIV");

	a = 1;

	for (i=0; i<divColl.length; i++) {
            if (divColl[i].className == "child") {
                divColl[i].style.display = (isExpanded) ? "none" : "block";
            }

	    divImg = eval(document.images["imEx_el" + a]);
	    if (divImg != null) {
		    divImg.src = newSrc;
	    }
	    a++;
        }


    } else if (NS6) {

        divColl = document.getElementsByTagName("DIV");

	a = 1;

        for (i=0; i < divColl.length; i++) {
            if (divColl[i].className == "child") {
                divColl[i].style.display = (isExpanded) ? "none" : "block";
	    }

	    divImg = eval(document.images["imEx_el" + a]);
	    if (divImg != null) {
		    divImg.src = newSrc;
	    }
	    a++;

        }


	divColl = null;
	imColl = null;

    }

    isExpanded = !isExpanded;
}

onload = initIt;