var show=1;

var strMenu = "<div id=\"menu\" class=\"clsMenu\" onMouseover=\"highlight()\" onMouseout=\"lowlight()\">"
strMenu += "<div class=\"Rmenuitems\" onClick=\"javascript:location.href='/'\">主页</div>"
strMenu += "<div class=\"Rmenuitems\" onClick=\"this.style.behavior='url(#default#homepage)';this.setHomePage(location.href);\" >设为首页</div>"
strMenu += "<div class=\"Rmenuitems\" onclick=\"window.external.AddFavorite(document.location.href,document.title) \">加入收藏</div>"
strMenu += "<div class=\"Rmenuitems\" onClick=\"javascript:location.href='ebook\'\">查看电子图册</div>"
strMenu += "<div class=\"Rmenuitems\" onClick=\"javascript:location.href='cn/about.asp'\">关于我们</div>"
strMenu += "<div class=\"Rmenuitems\" onClick=\"javascript:location.href='cn/contact.asp'\">联系我们</div>"
strMenu += "<hr size=1 class=\"Rmenusplit\">"
strMenu += "<div class=\"Rmenuitems\" onClick=\"javascript:history.back()\">后退(B)</div>"
strMenu += "<div class=\"Rmenuitems\" onClick=\"javascript:location.reload()\">刷新(R)</div>"

strMenu += "</div>"

// 判断客户端浏览器
function ie() {
if (navigator.appName=="Microsoft Internet Explorer") {
return true;
} else {
return false;
}}

// 显示菜单
function showRmenu(){
if (ie()){
hidemenu()
// 找出鼠标在窗口中的位置
var rightedge=document.body.clientWidth-event.clientX
var bottomedge=document.body.clientHeight-event.clientY

// 如果横向的距离小于菜单的宽度
if (rightedge<menu.offsetWidth)
// 将菜单向左移动到适当的位置
menu.style.left=document.body.scrollLeft+event.clientX-menu.offsetWidth
else
// 否则，就在该位置显示菜单
menu.style.left=document.body.scrollLeft+event.clientX

// 与上面道理相同，判断纵向的位置
if (bottomedge<menu.offsetHeight)
menu.style.top=document.body.scrollTop+event.clientY-menu.offsetHeight
else
menu.style.top=document.body.scrollTop+event.clientY

menu.style.visibility="visible"
}
return false
}


// 隐藏菜单
function hideRmenu(){
if (ie()) menu.style.visibility="hidden"
}

// 菜单项获得焦点时加亮显示
function highlight(){
if (event.srcElement.className=="Rmenuitems"){
event.srcElement.style.backgroundColor="#CFD6EC"
event.srcElement.style.color="#000000"
}}

// 菜单项失去焦点
function lowlight(){
if (event.srcElement.className=="Rmenuitems"){
event.srcElement.style.backgroundColor=""
event.srcElement.style.color="menutext"
}}
function testhideRmenu(){
if (event.toElement.className!="Rmenuitems"&&event.toElement.className!="clsMenu"&&event.toElement.className!="Rmenusplit"){
//bug(event.toElement.className)
hideRmenu()
}}

if (ie()) document.write (strMenu);

if (show==1){
document.oncontextmenu= showRmenu
document.body.onclick= hideRmenu
document.body.onmouseover=testhideRmenu
}
function ReMenu()
{
	if (event.toElement.tagName!="A"&&event.toElement.className!="menuitems"&&event.toElement.className!="menuskin"){
hidemenu()
}}
function TOPmenu(N){
{//alert(N);
//e1=document.Menu1
//e2=document.all.Menu2
//(var f=0;f<e1.length;f++)
//{
//e1[f].src="/img/Menu"+(f+1)+"_off.jpg";
//}
//e1[N-1].src="/img/Menu"+(N)+"_on.jpg";
}}
//菜单
var menuOffX=1	
var menuOffY=23	

var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1
var ns6=document.getElementById&&!document.all

function ShowMenu(e,vmenu,mod){
	which=vmenu
	menuobj=document.getElementById("TOPpopmenu")
	menuobj.thestyle=menuobj.style
	menuobj.innerHTML=which
	menuobj.contentwidth=menuobj.offsetWidth
	eventX=e.clientX
	eventY=e.clientY
	var rightedge=document.body.clientWidth-eventX
	var bottomedge=document.body.clientHeight-eventY
	var getlength
		if (rightedge<menuobj.contentwidth){
			getlength=ie4? document.body.scrollLeft+eventX-menuobj.contentwidth+menuOffX : ns6? window.pageXOffset+eventX-menuobj.contentwidth : eventX-menuobj.contentwidth
		}else{
			getlength=ie4? ie_x(event.srcElement)+menuOffX : ns6? window.pageXOffset+eventX : eventX
		}
		menuobj.thestyle.left=getlength+'px'
		if (bottomedge<menuobj.contentheight&&mod!=0){
			getlength=ie4? document.body.scrollTop+eventY-menuobj.contentheight-event.offsetY+menuOffY-23 : ns6? window.pageYOffset+eventY-menuobj.contentheight-10 : eventY-menuobj.contentheight
		}	else{
			getlength=ie4? ie_y(event.srcElement)+menuOffY : ns6? window.pageYOffset+eventY+10 : eventY
		}
	menuobj.thestyle.top=getlength+'px'
	menuobj.thestyle.visibility="visible"
	if (vmenu==''){menuobj.thestyle.visibility="hidden"}
}

function ie_y(e){  
	var t=e.offsetTop;  
	while(e=e.offsetParent){  
		t+=e.offsetTop;  
	}  
	return t;  
}  
function ie_x(e){  
	var l=e.offsetLeft;  
	while(e=e.offsetParent){  
		l+=e.offsetLeft;  
	}  
	return l;  
}  

function highlightmenu(e,state){
	if (document.all)
		source_el=event.srcElement
	else if (document.getElementById)
		source_el=e.target
	if (source_el.className=="menuitems"){
		source_el.id=(state=="on")? "mouseoverstyle" : ""
	}
	else{
		while(source_el.id!="TOPpopmenu"){
			source_el=document.getElementById? source_el.parentNode : source_el.parentElement
			if (source_el.className=="menuitems"){
				source_el.id=(state=="on")? "mouseoverstyle" : ""
			}
		}
	}
}

function hidemenu(){if (window.menuobj)menuobj.thestyle.visibility="hidden"}
function dynamichide(e){if ((ie4||ns6)&&!menuobj.contains(e.toElement))hidemenu()}

document.onclick=hidemenu
document.write("<div class=menuskin id=TOPpopmenu onmouseover=highlightmenu(event,'on') onmouseout=ReMenu();highlightmenu(event,'off');dynamichide(event)></div>")
// 菜单END
function bug(str){window.status=str;}