// JScript 文件

var isIe=(document.all)?true:false; 
//设置select的可见状态 
function setSelectState(state) 
{ 
    var objl=document.getElementsByTagName('select'); 
    for(var i=0;i<objl.length;i++) 
    { 
        objl[i].style.visibility=state; 
    } 
} 
function mousePosition(ev) 
{ 
    if(ev.pageX || ev.pageY) 
    { 
        return {x:ev.pageX, y:ev.pageY}; 
    } 
    return { 
        x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,y:ev.clientY + document.body.scrollTop - document.body.clientTop 
    }; 
} 
//弹出方法 
function showMessageBox(pos,wWidth) 
{ 
    var bWidth=parseInt(document.documentElement.scrollWidth); 
    var bHeight=parseInt(document.documentElement.scrollHeight); 
    if(isIe){ 
    setSelectState('hidden');} 

    var back=document.createElement("div"); 
    back.id="back"; 
    var styleStr="top:0px;left:0px;position:absolute;background:#666;width:"+bWidth+"px;height:"+bHeight+"px;z-index:98;"; 
    styleStr+=(isIe)?"filter:alpha(opacity=0);":"opacity:0;"; 
    back.style.cssText=styleStr; 
    document.body.appendChild(back); 
    showBackground(back,50);
} 

//关闭窗口 
function closeWindow(div) 
{ 
    if(document.getElementById('back')!=null) 
    { 
    document.getElementById('back').parentNode.removeChild(document.getElementById('back')); 
    } 
    var show = document.getElementById(div);
    show.style.display="none";

    if(isIe){ 
    setSelectState('');} 
}

//让背景渐渐变暗 
function showBackground(obj,endInt) 
{ 
    if(isIe) 
    { 
        obj.filters.alpha.opacity+=3; 
        if(obj.filters.alpha.opacity<endInt) 
        { 
        setTimeout(function(){showBackground(obj,endInt)},5); 
        } 
    }
    else{ 
        var al=parseFloat(obj.style.opacity);al+=0.03; 
        obj.style.opacity=al; 
        if(al<(endInt/100)) 
        {setTimeout(function(){showBackground(obj,endInt)},5);} 
    } 
}

//测试弹出 
function testMessageBox(ev,div) 
{ 
    var objPos = mousePosition(ev); 
    var show = document.getElementById(div);
    show.style.display="block";
    showMessageBox(objPos,350); 
}