// JavaScript Document
//预载图片方法
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];}}
}

//定义菜单元素数组
var MenuSrcObj = new Array();
		MenuSrcObj[0] = "images/btn_menu_01_on.gif";
		MenuSrcObj[1] = "images/btn_menu_02_on.gif";
		MenuSrcObj[2] = "images/btn_menu_03_on.gif";
		MenuSrcObj[3] = "images/btn_menu_04_on.gif";
		MenuSrcObj[4] = "images/btn_menu_05_on.gif";
		MenuSrcObj[5] = "images/btn_menu_06_on.gif";
		MenuSrcObj[6] = "images/btn_menu_07_on.gif";

//动态添加onload事件方法
function addLoadEvent(func) {   
    var oldonload = window.onload;   
    if (typeof window.onload != 'function'){   
        window.onload = func;   
    } else {   
        window.onload = function(){   
            oldonload();   
            func();   
        }   
    }   
}

//返回一个id的对象的方法
function $(id)
{
	return document.getElementById(id);	
}

//Menu State
function changeMenuState(id,action)
{
	loadMenuDefalut();
	if((action == 1)&&(id != pageId))
	{
		$("btn_menu"+id).src = MenuSrcObj[id-1];
	}
	else
	{
		if(pageId != 0)
		{
			$("btn_menu"+pageId).src = MenuSrcObj[pageId-1];
		}
		else
		{
			$("btn_menu1").src = "images/btn_menu_01.gif";
		}
	}
}

//初始化图片方法
function loadMenuDefalut()
{		
	$("btn_menu1").src = "images/btn_menu_01.gif";
	$("btn_menu2").src = "images/btn_menu_02.gif";	
	$("btn_menu3").src = "images/btn_menu_03.gif";
	$("btn_menu4").src = "images/btn_menu_04.gif";
	$("btn_menu5").src = "images/btn_menu_05.gif";
	$("btn_menu6").src = "images/btn_menu_06.gif";
	$("btn_menu7").src = "images/btn_menu_07.gif";
}

//动态绑定事件方法
function SetEvent(id,type,fun)
{
	if(id.addEventListener)
	{
		id.addEventListener(type,fun,false);
		id[type] = fun;
	}
	else if(id.attachEvent)
	{
		id.attachEvent(type,fun);
	}
	else
	{
		id[type] = fun;
	}
}

//为网页动态加入onload事件
addLoadEvent(function(){
	//开始预载图片
	MM_preloadImages('images/btn_menu_01_on.gif','images/btn_menu_02_on.gif','images/btn_menu_03_on.gif','images/btn_menu_04_on.gif','images/btn_menu_05_on.gif','images/btn_menu_06_on.gif','images/btn_menu_07_on.gif');
	//设定当前栏目事件
	if(pageId != 0)
	{
		changeMenuState(pageId,1);
	}
	//动态绑定菜单事件
	SetEvent($("btn_menu1"),'onmouseover',function(){changeMenuState(1,1);$("subMenu1").style.display = 'block';});
	SetEvent($("btn_menu2"),'onmouseover',function(){changeMenuState(2,1);$("subMenu2").style.display = 'block';});
	SetEvent($("btn_menu3"),'onmouseover',function(){changeMenuState(3,1);$("subMenu3").style.display = 'block';});
	SetEvent($("btn_menu4"),'onmouseover',function(){changeMenuState(4,1);});
	SetEvent($("btn_menu5"),'onmouseover',function(){changeMenuState(5,1);});
	SetEvent($("btn_menu6"),'onmouseover',function(){changeMenuState(6,1);});
	SetEvent($("btn_menu7"),'onmouseover',function(){changeMenuState(7,1);});
	
	SetEvent($("btn_menu1"),'onmouseout',function(){changeMenuState(1,0);$("subMenu1").style.display = 'none';});
	SetEvent($("btn_menu2"),'onmouseout',function(){changeMenuState(2,0);$("subMenu2").style.display = 'none';});
	SetEvent($("btn_menu3"),'onmouseout',function(){changeMenuState(3,0);$("subMenu3").style.display = 'none';});
	SetEvent($("btn_menu4"),'onmouseout',function(){changeMenuState(4,0);});
	SetEvent($("btn_menu5"),'onmouseout',function(){changeMenuState(5,0);});
	SetEvent($("btn_menu6"),'onmouseout',function(){changeMenuState(6,0);});
	SetEvent($("btn_menu7"),'onmouseout',function(){changeMenuState(7,0);});
	//动态绑定子菜单事件
	SetEvent($("subMenu1"),'onmouseover',function(){$("subMenu1").style.display = 'block';changeMenuState(1,1);});
	SetEvent($("subMenu2"),'onmouseover',function(){$("subMenu2").style.display = 'block';changeMenuState(2,1);});
	SetEvent($("subMenu3"),'onmouseover',function(){$("subMenu3").style.display = 'block';changeMenuState(3,1);});
	if(pageId != 0)
	{
		SetEvent($("subMenu1"),'onmouseout',function(){$("subMenu1").style.display = 'none';changeMenuState(pageId,0);});
		SetEvent($("subMenu2"),'onmouseout',function(){$("subMenu2").style.display = 'none';changeMenuState(pageId,0);});
		SetEvent($("subMenu3"),'onmouseout',function(){$("subMenu3").style.display = 'none';changeMenuState(pageId,0);});
	}
	else
	{
		SetEvent($("subMenu1"),'onmouseout',function(){$("subMenu1").style.display = 'none';changeMenuState(1,0);});
		SetEvent($("subMenu2"),'onmouseout',function(){$("subMenu2").style.display = 'none';changeMenuState(1,0);});
		SetEvent($("subMenu3"),'onmouseout',function(){$("subMenu3").style.display = 'none';changeMenuState(1,0);});
	}
	if(isProductMenu)
	{
	resetTips();	
	}
});

var isProductMenu = false;
//打开当前的内容且设定icon为-号
function showTips(e)
{
	resetTips();
	$("quest"+e).src = "images/icon02.gif";
	$("ask"+e).style.display = "block"
}


//将所有的内容都闭合，以及icon设为+
function resetTips()
{
	var IconObj = document.getElementsByTagName("img");
	var DivObj = document.getElementsByTagName("div");
	
	for(var i=0;i<IconObj.length;i++)
	{
		if((IconObj[i].getAttribute("rel") == "questIcon")&&(IconObj[i].getAttribute("rel")!=""))
		{
			IconObj[i].src = "images/icon01.gif";			
		}
	}
	
	for(var j=0;j<DivObj.length;j++)
	{
		if(DivObj[j].getAttribute("rel") == "askcontent")
		{
			DivObj[j].style.display = "none";			
		}
	}
}

//展开子菜单
function showSubTips(e)
{
	if(e == 1)
	{
		$("quest31").src = "images/icon02.gif";	
		$("quest32").src = "images/icon01.gif";	
		$("item3sub1").style.display = "block";
		$("item3sub2").style.display = "none";
	}
	else
	{
		$("quest32").src = "images/icon02.gif";	
		$("quest31").src = "images/icon01.gif";	
		$("item3sub2").style.display = "block";
		$("item3sub1").style.display = "none";
	}
}