$(function(){	
	//document.oncontextmenu = function(){ 
		//return false 
	//};
	//导航
	$(".nav ul li #nav").hide();
	
	$("li.mainmenu").hover(function(){
		$(this).find("#nav").stop(true,true);
		$(this).find("#nav").slideDown();
	},function(){
		$(this).find("#nav").stop(true,true);
		$(this).find("#nav").slideUp();
	});
	$(document).ready(function(){
		$(".nav ul li").hover(function(){
			$(this).addClass('cur').siblings().removeClass('cur');
		});
	});	
	
	//banner
	jQuery(".slideBox1").slide({mainCell:".bd ul",autoPlay:true});
	jQuery(".slideBox2").slide({mainCell:".bd ul",autoPlay:true});
	jQuery(".slideBox3").slide({mainCell:".bd ul",autoPlay:true});
	jQuery(".oneLisImg").slide({mainCell:".bd ul",autoPlay:true});
	
	//学术讲座
	jQuery(".picScroll-top").slide({titCell:".hd ul",mainCell:".bd ul",autoPage:true,effect:"topLoop",autoPlay:true,vis:3});
	
	//tab切换
	$(document).ready(function(){
		var $tab_li = $('#tab .tab_menu li');
		$tab_li.hover(function(){
			$(this).addClass('selected').siblings().removeClass('selected');
			var index = $tab_li.index(this);
			$('div.tab_box > div').eq(index).show().siblings().hide();
		});	
	});
	
	//下拉
	$(".select").each(function(){
		var s=$(this);
		var z=parseInt(s.css("z-index"));
		var dt=$(this).children("dt");
		var dd=$(this).children("dd");
		var _show=function(){dd.slideDown(200);dt.addClass("cur");s.css("z-index",z+1);};   //展开效果
		var _hide=function(){dd.slideUp(200);dt.removeClass("cur");s.css("z-index",z);};    //关闭效果
		dt.click(function(){dd.is(":hidden")?_show():_hide();});
		dd.find("a").click(function(){dt.html($(this).html());_hide();});     //选择效果（如需要传值，可自定义参数，在此处返回对应的“value”值 ）
		$("body").click(function(i){ !$(i.target).parents(".select").first().is(s) ? _hide():"";});
	})
});

//表单
window.onload = function ()
{
	var aForm = document.getElementsByTagName("form");
	//多个表单
	for (var i = 0; i < aForm.length; i++) WellForm(aForm[i]);
};

// 获取class
function getClass(sClass, oParent)
{
	var aClass = [];	
	var reClass = new RegExp("(^| )" + sClass + "( |$)");
	var aElem = (oParent || document).getElementsByTagName("*");
	for (var i = 0; i < aElem.length; i++) reClass.test(aElem[i].className) && aClass.push(aElem[i]);
	return aClass
}
// class是否存在
function hasClass(obj, sClass)
{
	var reg = new RegExp("(^|\\s)" + sClass + "(\\s|$)");
	return reg.test(obj.className)
}
// 添加class
function addClass(obj, sClass)
{
	hasClass(obj, sClass) || (obj.className += " "+sClass)
}
// 删除class
function removeClass(obj, sClass)
{
	if (hasClass(obj, sClass))
	{
		var reg = new RegExp("(^|\\s)" + sClass + "(\\s|$)");
		obj.className = obj.className.replace(reg, "");
	}
}
// 上一个元素
function prevElement(obj)
{
	return obj.previousSibling || obj.previousElementSibling || null	
}
// 下一个元素
function nextElement(obj)
{
	return obj.nextSibling || obj.nextElementSibling || null	
}
// 自定义表单函数
function WellForm(form)
{
	var i = 0;
	var zIndex = 1;
	var aInput = form.getElementsByTagName("input");	
	var aSelect = form.getElementsByTagName("select");
	var aTextArea = form.getElementsByTagName("textarea");
	form.className = "WellForm";
	
	
	
	/* 单选框 */
	var aRadio = [];
	for (i = 0; i < aInput.length; i++) aInput[i]["type"] == "radio" && aRadio.push(aInput[i]);
	
	for (i = 0; i < aRadio.length; i++)
	{
		var oRadio = document.createElement("div");
		oRadio.className = "WellRadio";	
		
		aRadio[i].parentNode.insertBefore(oRadio, aRadio[i]);
		oRadio.appendChild(aRadio[i]);
		
		aRadio[i].checked && addClass(aRadio[i].parentNode, "WellRadioH");
		
		oRadio.onclick = function ()
		{
			var siblings = getClass("WellRadio", this.parentNode);
			for (i = 0; i < siblings.length; i++)
			{
				removeClass(siblings[i], "WellRadioH");
				siblings[i].children[0].checked = false;
			}
			addClass(this, "WellRadioH");
			this.children[0].checked = true
		}
	}

	
}