var remember = true; //Remember menu states, and restore them on next visit.
var contractall_default= true; //Should all submenus be contracted by default? (true or false)

var menu, titlesA,titlesB ,submenus, arrows,arrowd, bypixels;
var heights = new Array();

var n = navigator.userAgent;
if(/Opera/.test(n)) bypixels = 2;
else if(/Firefox/.test(n)) bypixels = 3;
else if(/MSIE/.test(n)) bypixels = 2;

/////DD added expandall() and contractall() functions/////

function slash_expandall(){
if (typeof menu!="undefined"){
	for(i=0; i<Math.max(titlesA.length + titlesB.length, submenus.length); i++){
		if(i%2==0)
      titlesA[Math.floor(i/2)].className="titleA";
    else
		  titlesB[Math.floor(i/2)].className="titleB";
		  
		//arrows[i].src = "graphics/expanded.gif";
		submenus[i].style.display="";
		submenus[i].style.height = heights[i]+"px";
	}
}
}

function slash_contractall(){
if (typeof menu!="undefined"){
	for(i=0; i<Math.max(titlesA.length + titlesB.length, submenus.length); i++){
		if(i%2==0)
      titlesA[Math.floor(i/2)].className="titlehiddenA";
    else
		  titlesB[Math.floor(i/2)].className="titlehiddenB";
		  
		//arrows[i].src = "graphics/collapsed.gif";
		submenus[i].style.display="none";
		submenus[i].style.height = "0px";
	}
}
}


/////End DD added functions///////////////////////////////


function init(){
    goforit();
    menu = getElementsByClassName("sdmenu", "div", document)[0];
    titlesA = getElementsByClassName("titleA", "span", menu);
    titlesB = getElementsByClassName("titleB", "span", menu);
    submenus = getElementsByClassName("submenu", "div", menu);
    //arrows = getElementsByClassName("arrow", "img", menu);
    //arrowd = getElementsByClassName("arrowd", "img", menu);
    for(i=0; i<Math.max(titlesA.length + titlesB.length, submenus.length); i++) {
        
        if(i%2==0)
          titlesA[Math.floor(i/2)].onclick = gomenu;
        else
          titlesB[Math.floor(i/2)].onclick = gomenu;
          
        //arrows[i].onclick = gomenu;
        //arrowd[i].onclick = gomenu;
        if(submenus[i].offsetHeight==25){
          heights[i] = 0;
          submenus[i].style.height = "0px";
        }else{
          //submenus[i].offsetHeight=0;
          heights[i] = submenus[i].offsetHeight;
        
        //alert("offset: "+submenus[i].offsetHeight+"\n line: "+submenus[i].style.lineHeight);
        submenus[i].style.height = submenus[i].offsetHeight+"px";
        }
    }
    if(remember)
				restore()
		else if (contractall_default) //DD added code
				slash_contractall() //DD added code
}

function restore() {
    if(getcookie("menu") != null) {
        var hidden = getcookie("menu").split(",");
        i=0;
        //alert(hidden.length);
        for(i=0;i<hidden.length;i++){
        //for(var i in hidden) {
            if(i%2==0)
              titlesA[Math.floor(hidden[i]/2)].className = "titlehiddenA";
            else
              titlesB[Math.floor(hidden[i]/2)].className = "titlehiddenB";
              
            submenus[hidden[i]].style.height = "0px";
            submenus[hidden[i]].style.display = "none";
            //arrows[hidden[i]].src = "graphics/collapsed.gif";
        }
    }else{
      slash_contractall();
      store();
    }
}

function gomenu(e) {
    if (!e)
        var e = window.event;
    var ce = (e.target) ? e.target : e.srcElement;
    var sm;
    
    for(i=0;i<titlesA.length + titlesB.length ; i++){
      if(i%2==0){
        if(titlesA[Math.floor(i/2)] == ce){//} || arrows[i] == ce){
            sm = i;
            //alert("a"+i);
        }
      }
      else
        if(titlesB[Math.floor(i/2)] == ce ){//|| arrows[i] == ce){
            sm = i;
            //alert("b"+i);
        }
    }
    /*
    for(var i in titles) {
        if(titles[i] == ce || arrows[i] == ce)
            sm = i;
    }*/
    //alert(sm);
    
    if(submenus[sm]!=null)
    if(parseInt(submenus[sm].style.height) > parseInt(heights[sm])-2) {
        hidemenu(sm);
    } else if(parseInt(submenus[sm].style.height) < 2) {
        if(sm%2==0)
          titlesA[Math.floor(sm/2)].className = "titleA";
        else
          titlesB[Math.floor(sm/2)].className = "titleB";
        
        showmenu(sm);
    }
}

function hidemenu(sm) {
    var nr = submenus[sm].getElementsByTagName("a").length*bypixels;
    submenus[sm].style.height = (parseInt(submenus[sm].style.height)-nr)+"px";
    var to = setTimeout("hidemenu("+sm+")", 30);
    if(parseInt(submenus[sm].style.height) <= nr) {
        clearTimeout(to);
        submenus[sm].style.display = "none";
        submenus[sm].style.height = "0px";
       // submenus[sm].style.fontsize = "0px";
       // arrows[sm].src = "graphics/collapsed.gif";
        if(sm%2==0)
          titlesA[Math.floor(sm/2)].className = "titlehiddenA";
        else
          titlesB[Math.floor(sm/2)].className = "titlehiddenB";
    }
}

function showmenu(sm) {
    var nr = submenus[sm].getElementsByTagName("a").length*bypixels;
    submenus[sm].style.display = "";
    submenus[sm].style.height = (parseInt(submenus[sm].style.height)+nr)+"px";
    var to = setTimeout("showmenu("+sm+")", 30);
    if(parseInt(submenus[sm].style.height) > (parseInt(heights[sm])-nr)) {
        clearTimeout(to);
        submenus[sm].style.height = heights[sm]+"px";
      //  arrows[sm].src = "graphics/expanded.gif";
    }
        
        
}

function store() {
    var hidden = new Array();
    for(var i=0;i<titlesA.length + titlesB.length ;i++){
      if(i%2==0){
        if(titlesA[Math.floor(i/2)].className == "titlehiddenA")
            hidden.push(i);
      }else{
        if(titlesB[Math.floor(i/2)].className == "titlehiddenB")
            hidden.push(i);
      }
    }
    //alert(hidden);
    /*
    for(var i in titles) {
        if(titles[i].className == "titlehidden")
            hidden.push(i);
    }*/
    if(hidden.length>0)
      putcookie("menu", hidden.join(","), 30);
}

function getElementsByClassName(strClassName, strTagName, oElm){
    var arrElements = (strTagName == "*" && document.all)? document.all : oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();
    strClassName = strClassName.replace(/\-/g, "\\-");
    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
    var oElement;
    for(var i=0; i<arrElements.length; i++){
        oElement = arrElements[i];      
        if(oRegExp.test(oElement.className)){
            arrReturnElements.push(oElement);
        }   
    }
    return (arrReturnElements)
}

function putcookie(c_name,value,expiredays) {
    var exdate=new Date();
    exdate.setDate(exdate.getDate()+expiredays);
    document.cookie = c_name + "=" + escape(value) + ((expiredays==null) ? "" : ";expires="+exdate);
}

function getcookie(c_name) {
    if(document.cookie.length > 0) {
        var c_start = document.cookie.indexOf(c_name + "=");
        if(c_start != -1) {
            c_start = c_start + c_name.length + 1;
            var c_end = document.cookie.indexOf(";",c_start);
            if(c_end == -1)
                c_end = document.cookie.length;
            return unescape(document.cookie.substring(c_start, c_end));
        }
    }
    return null;
}

window.onload = init;
if(remember) window.onunload = store;