function writeCookie(name, value, hours) {
	var expire = "";
	if (hours != null) {
		expire = new Date((new Date()).getTime() + hours * 3600000);
		expire = "; expires=" + expire.toGMTString() + "; path=/";
	}
	document.cookie = name + "=" + escape(value) + expire;
}

var dgd = function(tagId) {
	return document.getElementById(tagId);
}

function fAddClass(XEle, XClass) {
	if (!XClass)
		throw new Error("XClass 不能为空!");
	if (XEle.className != "") {
		var Re = new RegExp("\\b" + XClass + "\\b\\s*", "");
		XEle.className = XEle.className.replace(Re, "");
		var OldClassName = XEle.className.replace(/^\s+|\s+$/g, "");
		if (OldClassName == "") {
			XEle.className = XClass;
		} else {
			XEle.className = OldClassName + " " + XClass;
		}

	} else
		XEle.className = XClass;
}

function fRemoveClass(XEle, XClass) {
	if (!XClass)
		throw new Error("XClass 不能为空!");
	var OldClassName = XEle.className.replace(/^\s+|\s+$/g, "");
	if (OldClassName != "") {

		var Re = new RegExp("\\b" + XClass + "\\b\\s*", "");
		XEle.className = OldClassName.replace(Re, "");
	}
}

var SwitchPic = function(args) {
	this.bigpiccont = dgd(args.bigpic);
	this.switchnav = dgd(args.switchnav);
	this.selectstyle = args.selectstyle;
	this.objname = args.objname;
	this.curpage = 0;
	this.autotimeintval = 3000;
	var bigpics = this.bigpiccont.getElementsByTagName("div");
	this.totalcount = bigpics.length;
	// this.bigpics = bigpics ;
	if (args.switchtitles) {
		this.switchtitles = args.switchtitles;
		this.switchtitleconfig = args.switchtitleconfig;
	}

	for (i = 0; i < bigpics.length; i++) {
		bigpics[i].onmouseover = new Function(this.objname + ".pauseSwitch();");
		bigpics[i].onmouseout = new Function(this.objname + ".goonSwitch("
				+ this.objname + ");");
	}

	var switchnavs = this.switchnav.getElementsByTagName("li");
	for (i = 0; i < switchnavs.length; i++) {
		switchnavs[i].onmouseover = new Function(this.objname + ".goSwitch("
				+ this.objname + "," + i + ");" + this.objname
				+ ".pauseSwitch();");
		switchnavs[i].onmouseout = new Function(this.objname + ".goonSwitch("
				+ this.objname + ");");
	}
}
SwitchPic.prototype.goSwitch = function(obj, page) {
	if (page >= this.totalcount) {
		page = 0;
	}
	this.curpage = page;

	var bigpics = this.bigpiccont.getElementsByTagName("div");
	for (i = 0; i < bigpics.length; i++) {
		if (i == page) {
			bigpics[i].style.display = "block";
		} else {
			bigpics[i].style.display = "none";
		}
	}
	var switchnavs = this.switchnav.getElementsByTagName("li");
	for (i = 0; i < switchnavs.length; i++) {
		if (i == page) {
			fAddClass(switchnavs[i], this.selectstyle);
		} else {
			fRemoveClass(switchnavs[i], this.selectstyle);
		}
	}
	if (this.switchtitles && this.switchtitleconfig) {
		this.switchTitles(page);
	}
}
SwitchPic.prototype.switchTitles = function(page) {
	for (title_index = 0; title_index < this.switchtitleconfig.length; title_index++) {
		dgd("SwitctTitle_" + this.switchtitleconfig[title_index]).innerHTML = '<a href="'
				+ this.switchtitles[page]['link']
				+ '" onmouseover="'
				+ this.objname
				+ '.pauseSwitch();" onmouseout="'
				+ this.objname
				+ '.goonSwitch('
				+ this.objname
				+ ');" target="_blank">'
				+ this.switchtitles[page][this.switchtitleconfig[title_index]]
				+ '</a>';
	}

}
SwitchPic.prototype.autoSwitch = function(obj) {
	this.curpage++;
	this.goSwitch(obj, this.curpage);
	this.autoSwitchTimer = setTimeout(obj.objname + ".autoSwitch("
			+ obj.objname + ");", this.autotimeintval);
}
SwitchPic.prototype.pauseSwitch = function() {
	clearTimeout(this.autoSwitchTimer);
}
SwitchPic.prototype.goonSwitch = function(obj) {
	clearTimeout(this.autoSwitchTimer);
	this.autoSwitchTimer = setTimeout(obj.objname + ".autoSwitch("
			+ obj.objname + ");", this.autotimeintval);
}