//top navigation
function menuFix() {
  var sfEls = document.getElementById("nav").getElementsByTagName("li");
  for (var i=0; i<sfEls.length; i++) {
	sfEls[i].onmouseover=function() {
	  this.className+=(this.className.length>0? " ":"") + "sfhover";
	}
	sfEls[i].onMouseDown=function() {
	  this.className+=(this.className.length>0? " ":"") + "sfhover";
	}
	sfEls[i].onMouseUp=function() {
	  this.className+=(this.className.length>0? " ":"") + "sfhover";
	}
	sfEls[i].onmouseout=function() {
	  this.className=this.className.replace(new RegExp("( ?|^)sfhover\\b"), 
  "");
	}
  }
}

//ͼƬ¹ö¶¯
var currentPhoto = 0;
var secondPhoto = 1;

var currentOpacity = new Array();
var imageArray = new Array("/images/private/index/1.jpg","/images/private/index/2.jpg","/images/private/index/3.jpg","/images/private/index/4.jpg","/images/private/index/5.jpg","/images/private/index/6.jpg","/images/private/index/7.jpg","/images/private/index/8.jpg");

var FADE_STEP = 2;
var FADE_INTERVAL = 10;
var pause = false;

function init() {
	currentOpacity[0]=99;
	for(i=1;i<imageArray.length;i++)currentOpacity[i]=0;
	mHTML="";
	for(i=0;i<imageArray.length;i++)mHTML+="<div id=\"photo\" name=\"photo\" class=\"mPhoto\"><img src=\"" + imageArray[i]  +"\"></div>";
	document.getElementById("mContainer").innerHTML = mHTML;

	if(document.all) {
		document.getElementsByName("photo")[currentPhoto].style.filter="alpha(opacity=100)";
	} else {
		document.getElementsByName("photo")[currentPhoto].style.MozOpacity = .99;
	}

	mInterval = setInterval("crossFade()",FADE_INTERVAL);
}

function crossFade() {
	if(pause)return;

	currentOpacity[currentPhoto]-=FADE_STEP;
	currentOpacity[secondPhoto] += FADE_STEP;

	if(document.all) {
		document.getElementsByName("photo")[currentPhoto].style.filter = "alpha(opacity=" + currentOpacity[currentPhoto] + ")";
		document.getElementsByName("photo")[secondPhoto].style.filter = "alpha(opacity=" + currentOpacity[secondPhoto] + ")";
	} else {
		document.getElementsByName("photo")[currentPhoto].style.MozOpacity = currentOpacity[currentPhoto]/100;
		document.getElementsByName("photo")[secondPhoto].style.MozOpacity =currentOpacity[secondPhoto]/100;
	}

	if(currentOpacity[secondPhoto]/100>=.98) {
		currentPhoto = secondPhoto;
		secondPhoto++;
		if(secondPhoto == imageArray.length)secondPhoto=0;
		pause = true;
		xInterval = setTimeout("pause=false",2000);
	}
}