var isDHTML = 0;
var isLayers = 0;
var isAll = 0;
var isID = 0;

if (document.getElementById) {isID = 1; isDHTML = 1;}
else {
browserVersion = parseInt(navigator.appVersion);
if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) {isLayers = 1; isDHTML = 1;}
else {
if (document.all) {isAll = 1; isDHTML = 1;}
}}

function findDOM(objectID,withStyle) {
var menuArea = "menuArea";
    if (withStyle == 1) {
        if (isID) { return (document.getElementById(objectID).style) ; }
        else { 
            if (isAll) { return (document.all[objectID].style); }
        else {
            if (isLayers) { return (document.layers[menuArea].layers[objectID]); }
        };}
    }
    else {
        if (isID) { return (document.getElementById(objectID)) ; }
        else { 
            if (isAll) { return (document.all[objectID]); }
        else {
            if (isLayers) { return (document.layers[menuArea].layers[objectID]); }
        };}
    }
}

function setClass(objectID,newClass) {
    var dom = findDOM(objectID,0);
    if(dom != null)
        dom.className = newClass;
}

function changeStyle(objectID,styleName,newVal) {
    var dom = findDOM(objectID,1);
    dom [styleName] = newVal;
}

function switchDiv(objectID){
    var dom = findDOM(objectID,0);
    if(dom.style.display != "block"){
        dom.style.display = "block";
    }else{
        dom.style.display = "none";
    }
}