popmenu.js

能自动计算总分、平均分及格率等各种统计数据。在统计时你还可以选择统计全部学科或部分学科；在使用中可自由增删成绩、人员

var menuOffX=0  //菜单距连接文字最左端距离
var menuOffY=25 //菜单距连接文字顶端距离

var fo_shadows=new Array()
var linkset=new Array()

////No need to edit beyond here

var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1
var ns6=document.getElementById&&!document.all
var ns4=document.layers

function showmenu(e,index,p,paging){
    //p为当前页数,paging为当前是不是翻页
    if (!document.all&&!document.getElementById&&!document.layers)
        return
    
    which=linkset[index]
    var pSize=10    //每页连接数
    var pNum=Math.floor((which.length-1)/pSize)+1       //页数
    
    clearhidemenu()
    ie_clearshadow()
    
    //设置菜单内容
    if (pNum==1){
        which=which.join("")
    }else{
        which=which.slice( (p-1)*pSize, p*pSize )
        which=which.join("")
        which+="<div class=\"menuitems\" >"
        if (p==1)
    	{
            which+="&nbsp;&nbsp;<font face=webdings color=gray>7</font>"
        }else{
            which+="&nbsp;&nbsp;<font face=webdings style=cursor:hand onclick=showmenu(event,"+ index +","+ (p-1) +",true) >7</font>"
    	}
        if (p==pNum)
    	{
            which+="<font face=webdings color=gray>8</font>"
        }else{
            which+="<font face=webdings style=cursor:hand onclick=showmenu(event,"+ index +","+ (p+1) +",true) >8</font>"
    	}
        which+="</div>"
    }
    
    menuobj=ie4? document.all.popmenu : ns6? document.getElementById("popmenu") : ns4? document.popmenu : ""
    menuobj.thestyle=(ie4||ns6)? menuobj.style : menuobj
    
    if (ie4||ns6)
        menuobj.innerHTML=which
    else{
        menuobj.document.write('<layer name=gui bgColor=#ffffff width=165 onmouseover="clearhidemenu()" onmouseout="hidemenu()">'+which+'</layer>')
        menuobj.document.close()
    }
    menuobj.contentwidth=(ie4||ns6)? menuobj.offsetWidth : menuobj.document.gui.document.width
    menuobj.contentheight=(ie4||ns6)? menuobj.offsetHeight : menuobj.document.gui.document.height
    
    eventX=ie4? event.clientX : ns6? e.clientX : e.x
    eventY=ie4? event.clientY : ns6? e.clientY : e.y
    
    var rightedge=ie4? document.body.clientWidth-eventX : window.innerWidth-eventX
    var bottomedge=ie4? document.body.clientHeight-eventY : window.innerHeight-eventY
    	
    if (!paging)
    {	
        if (rightedge<menuobj.contentwidth)
            menuobj.thestyle.left=ie4? document.body.scrollLeft+eventX-menuobj.contentwidth+menuOffX : ns6? window.pageXOffset+eventX-menuobj.contentwidth : eventX-menuobj.contentwidth
        else
            menuobj.thestyle.left=ie4? ie_x(event.srcElement)+menuOffX : ns6? window.pageXOffset+eventX : eventX
    	
        if (bottomedge<menuobj.contentheight)
            menuobj.thestyle.top=ie4? document.body.scrollTop+eventY-menuobj.contentheight-event.offsetY+menuOffY : ns6? window.pageYOffset+eventY-menuobj.contentheight : eventY-menuobj.contentheight
        else
            menuobj.thestyle.top=ie4? ie_y(event.srcElement)+menuOffY : ns6? window.pageYOffset+eventY : eventY
    }
    	
    menuobj.thestyle.visibility="visible"
    ie_dropshadow(menuobj,"#ffffff",3)
    return false
}

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 ie_dropshadow(el, color, size)
{
    var i;
    for (i=size; i>0; i--)
    {
        var rect = document.createElement('div');
        var rs = rect.style
        rs.position = 'absolute';
        rs.left = (el.style.posLeft + i) + 'px';
        rs.top = (el.style.posTop + i) + 'px';
        rs.width = el.offsetWidth + 'px';
        rs.height = el.offsetHeight + 'px';
        rs.zIndex = el.style.zIndex - i;
        rs.backgroundColor = color;
        var opacity = 1 - i / (i + 1);
        rs.filter = 'alpha(opacity=' + (100 * opacity) + ')';
        el.insertAdjacentElement('afterEnd', rect);
        fo_shadows[fo_shadows.length] = rect;
    }
}
function ie_clearshadow()
{
    for(var i=0;i<fo_shadows.length;i++)
    {
        if (fo_shadows[i])
            fo_shadows[i].style.display="none"
    }
    fo_shadows=new Array();
}


function contains_ns6(a, b) {
    while (b.parentNode)
        if ((b = b.parentNode) == a)
            return true;
    return false;
}

function hidemenu(){
    if (window.menuobj)
        menuobj.thestyle.visibility=(ie4||ns6)? "hidden" : "hide"
    ie_clearshadow()
}

function dynamichide(e){
    if (ie4&&!menuobj.contains(e.toElement))
        hidemenu()
    else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
        hidemenu()
}

function delayhidemenu(){
    if (ie4||ns6||ns4)
        delayhide=setTimeout("hidemenu()",500)
}

function clearhidemenu(){
    if (window.delayhide)
        clearTimeout(delayhide)
}

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!="popmenu"){
            source_el=document.getElementById? source_el.parentNode : source_el.parentElement
            if (source_el.className=="menuitems"){
                source_el.id=(state=="on")? "mouseoverstyle" : ""
    		}
    	}
    }
}

if (ie4||ns6)
document.onclick=hidemenu