NS4 = (document.layers) ? 1 : 0;
IE4 = (document.all) ? 1 : 0;
ver4 = (NS4 || IE4) ? 1 : 0;

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) { //v3.0
  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); 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];}
}

cookiename = 'lwht';  
cookieval= 'txtVer';  

function GetCookie(cookieName) {
thisCookie = document.cookie.split("; ")
for (i = 0; i < thisCookie.length; i++) {
	if (cookieName == thisCookie[i].split("=")[0]) {
		return thisCookie[i].split("=")[1];
	}
}
return "";
}

var mainSubLayName = new Array('menulay1','menulay2', 'menulay3', 'menulay4');
var mainSubLayHeight = new Array(191, 199, 246, 265);

function popUp(idx,on) {
	if (idx > 0) {
		curLayName = mainSubLayName[idx - 1];
		curLayHeight = mainSubLayHeight[idx - 1];
		
		if (on) {
			if (NS4) {
				document.layers[curLayName].visibility = "show";
				document.layers[curLayName].top = window.pageYOffset + curLayHeight;
			} else {
				document.all[curLayName].style.visibility = "visible";
				document.all[curLayName].style.pixelTop = document.body.scrollTop + curLayHeight;
			}
		} else {
			if (NS4) {
				document.layers[curLayName].visibility = "hide";
			} else {
				document.all[curLayName].style.visibility = "hidden";
			}
		}
	}
}

var mainLayName = "mainlay";
var mainLayHeight = 180;

if (cookieval != GetCookie(cookiename)) {

	if (NS4)
		setInterval ('floatButton()', 100);
	else	
		window.onscroll = floatButton;
	
}

function floatButton () {
	if (NS4) {
		document.layers[mainLayName].top = window.pageYOffset + mainLayHeight;
	} else {
		document.all[mainLayName].style.pixelTop = document.body.scrollTop + mainLayHeight;
	}
}


function version(lang) {
	prog_file = "/cgi-bin/changever.cgi";

	org_path=window.location.pathname;
	org_path_end=org_path.length;
	
	if (lang == 'e') {
		org_path = org_path.replace("/chi", "");
		lang_arg = "";
	} else {
		lang_arg = "lang=c&";
	}
	
	prog_arg = "?" + lang_arg + "path=" + org_path;

//	alert(prog_file + prog_arg);	
	window.location = prog_file + prog_arg;
	
}