MM_preloadImages('/harrypotter/images/nav_books_1.jpg','/harrypotter/images/nav_activities_1.jpg','/harrypotter/images/nav_multimedia_1.jpg','/harrypotter/images/nav_downloads_1.jpg','/harrypotter/images/nav_events_1.jpg','/harrypotter/images/nav_community_1.jpg','/harrypotter/images/nav_7_1.jpg');

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

var timecount=100;
var timerOn=false;
var timerID, timerID2;
function DropDownItem(name,top,left) {
	this.name=name;
	this.top=top;
	this.left=left;
	this.hide=hide;
	this.show=show;
	this.startTime=startTime;
	this.stopTime=stopTime;

	function show() {
		document.getElementById(this.name).style.visibility="visible";
		document.getElementById(this.name).style.left=this.left+"px";
		document.getElementById(this.name).style.top=this.top+"px";
	}

	function hide() {
		document.getElementById(this.name).style.visibility="hidden";
	}

	function startTime() {
    	if (timerOn == false) {
           timerID=setTimeout("menu.hideAll()", timecount);
           timerID2=setTimeout("MM_swapImgRestore()", timecount);
           timerOn=true;
		}
	}

	function stopTime() {
    	if (timerOn) {
	        clearTimeout(timerID);
	        clearTimeout(timerID2);
            timerID=null;
            timerID2=null;
            timerOn=false;
	    }
	}	
}

function DropDownMenu() {
	this.hideAll=hideAll;
	this.hideOthers=hideOthers;
	
	this.list=new Array(arguments.length);
	for(var i=0;i<arguments.length;i++) {
		this.list[i]=arguments[i];
	}
	function hideAll() {
		for(var i=0;i<this.list.length;i++) {
			this.list[i].hide();
		}
	}

	function hideOthers(current) {
		for(var i=0;i<this.list.length;i++) {
			if (this.list[i].name==current) {
				this.list[i].show();
			} else {
				this.list[i].hide();
			}
		}
		MM_swapImgRestore();
	}
	
}

var dd1=new DropDownItem("dropdown1",38,42);
var dd2=new DropDownItem("dropdown2",38,151);
var dd3=new DropDownItem("dropdown3",38,279);
var dd4=new DropDownItem("dropdown4",38,392);
var dd5=new DropDownItem("dropdown5",38,492);
var dd6=new DropDownItem("dropdown6",38,537);
var dd7=new DropDownItem("dropdown7",38,0);

var menu=new DropDownMenu(dd1,dd2,dd3,dd4,dd5,dd6,dd7);
//menu.hideAll();