var isDOM = (document.getElementById ? true : false); 
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);
var isNS = navigator.appName == "Netscape";

var scrollerHeight = 88;
var puaseBetweenImages = 3000;
var imageIdx = 0;

function getRef(id) {
	if (isDOM) return document.getElementById(id);
	if (isIE4) return document.all[id];
	if (isNS4) return document.layers[id];
}

function getSty(id) {
	x = getRef(id);
	return (isNS4 ? getRef(id) : getRef(id).style);
}

function moveRightEdge() {
	var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck;

	if (isNS4) {
		yMenuFrom   = ScrollMenu.top;
		yMenuTo     = windows.pageYOffset;   // À§ÂÊ À§Ä¡
	} else if (isDOM) {
		yMenuFrom   = parseInt (ScrollMenu.style.top, 10);
		yMenuTo     = (isNS ? window.pageYOffset : document.body.scrollTop); // À§ÂÊ À§Ä¡
	}
	timeoutNextCheck = 200;

	if (yMenuFrom != yMenuTo) {
		yOffset = Math.ceil(Math.abs(yMenuTo - yMenuFrom) / 20);
		if (yMenuTo < yMenuFrom)
			yOffset = -yOffset;
		if (isNS4)
			ScrollMenu.top += yOffset;
		else if (isDOM)
			ScrollMenu.style.top = parseInt (ScrollMenu.style.top, 10) + yOffset;
		if(parseInt (ScrollMenu.style.top, 10) >  8800) {
			ScrollMenu.style.top = "8800px"
		}	
			timeoutNextCheck = 10;
	}
	setTimeout ("moveRightEdge()", timeoutNextCheck);
}

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) { //v4.0
  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 && document.getElementById) x=document.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 MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_popupMsg(msg) { //v1.0
  alert(msg);
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}

function getCookie( name ) {
	var Cname = name + "=";
	var dc = document.cookie;

	if( dc.length > 0 ) {
		begin = dc.indexOf( Cname );

		if( begin != -1 ) {
			begin += Cname.length;
			end = dc.indexOf(";", begin);

			if( end == -1 ) end = dc.length;

			return unescape( dc.substring(begin,end) );
		}
	}
	return null;		
}

function setCookie( name, value, expires ) {
	document.cookie = name + "=" + escape(value) + "; path=/" + ( (expires == null)?"":"; expires=" + expires.toGMTString() ); 
}

function delCookie( name ) {
	document.cookie = name + "=; expires=Thu, 01-Jan-70 00:00:01 GMT" + "; path=/";
}