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_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_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];}
}


function wopen_pop( url , name , width, height )
{
	opt = "toolbar=no,location=no,left=500,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width="+width+",height="+height;
	window.open(url,name,opt);
}

var EventListener = {
	add: function(obj, event, funcname, capture)
	{
		if (obj.addEventListener)
			obj.addEventListener(event, funcname, capture);
		else if (obj.attachEvent)
			obj.attachEvent("on" + event, funcname);
	},
	remove: function(obj, event, funcname, capture)
	{
		if (obj.removeEventListener)
			obj.removeEventListener(event, funcname, capture);
		else if (obj.detachEvent)
			obj.detachEvent("on" + event, funcname);
	}
};

var DropDownMenu = {

	/* J???? */
	open_sleep: 300,

	/* ????? */
	close_sleep: 500,

	timer: null,

	active_oid: null,

	// JC
	open: function(target_id)
	{
		// J?郁j[?
		if (this.timer) {
			if (this.active_oid == target_id)
				clearTimeout(this.timer);
			else
				this._close();
		}
		this.active_oid = target_id;
		this.timer = setTimeout("DropDownMenu._open();", this.open_sleep);
		EventListener.add(document.documentElement, "click", DropDownMenu._close, true);
	},

	// ?郁C
	close: function()
	{
		if (this.timer)
			clearTimeout(this.timer);
		this.timer = setTimeout("DropDownMenu._close();", this.close_sleep);
	},

	_open: function()
	{
		var obj = document.getElementById(this.active_oid);
		obj.style.visibility = "visible";
		obj.style.position = "static";
	},

	_close: function()
	{
		document.getElementById(DropDownMenu.active_oid).style.visibility = "hidden";
		document.getElementById(DropDownMenu.active_oid).style.position = "absolute";
		EventListener.remove(document.documentElement, "click", DropDownMenu._close, true);
		clearTimeout(DropDownMenu.timer);
		delete DropDownMenu.timer;
	}

};

function 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=findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
};

function showLayers() { //v6.0
  var i,p,v,obj,args=showLayers.arguments;
  for (i=0; i<(args.length-2); i+=3)
     if ((obj=findObj(args[i]))!=null) {
        v=args[i+2];
        if (obj.style) {
            obj=obj.style;
            v=(v=='show')?'visible':(v=='hide')?'hidden':v;

        }
        obj.visibility=v;

	var cl_x = YAHOO.util.Event.getPageX(args[3]);
	var cl_y = YAHOO.util.Event.getPageY(args[3]);
        obj.left = parseInt(cl_x) - 30;
        obj.top = parseInt(cl_y) -  parseInt(obj.height) - 20;

     }
};