我的菜单

document.onmouseover=showmune;
var sPop = null;
document.write('<style type=text/css>');
document.write('');
document.write('.PopText { font-family: Tahoma, 宋体; color: #000000; background-color: #66FF33; border: 1px #000000 dashed; font-size: 12px; line-height: 14px; padding: 4px; visibility: hidden; filter: Alpha(Opacity=0)}');
document.write('</style>');
document.write('<div id="popLayer" style="position:absolute;z-index:1000;filter:revealtrans(duration=.5,transition=12) revealTrans(duration=1,transition=23) alpha(opacity=90,enabled=100)"></div>');
function showmune(){
    //显示菜单
    var o = event.srcElement;
    var temp_t = o.title;
    var temp_a = o.alt;
    var str_len = 0;
    var i = 0;
    
    if(o.alt!=null && o.alt!=""){ o.pop=o.alt;o.alt="";}
　　if(o.title!=null && o.title!=""){ o.pop=o.title;o.title="";} 
    if(o.pop){
        o.pop=o.pop.replace(/(\\n)/g,"<br>");
        /*
        var temp = o.pop.split("<br>");
        while(i < temp.length){
            //str_len = str_len < x_str_len(temp[i]) ? x_str_len(temp[i]) : str_len;    //自动
            ++i;
        }
*/
        str_len = 34;    //固定长度
    }
    if(o.pop!=sPop){
        sPop = o.pop;
    　　if(sPop==null || sPop==""){
    　　　    popLayer.filters[0].apply();
    　　　    popLayer.style.visibility="hidden";　
    　　　    popLayer.filters[0].play();
    　　　    popLayer.style.width="";
    　　}else{
    　　　    if(o.dyclass!=null) popStyle=o.dyclass;
    　　　    else popStyle="PopText";
        　　popLayer.filters[0].apply();
            if(o.pop.substring(0,4) != "ylhx"){
                o.title = temp_t;
                o.alt = temp_a;
        　　　    popLayer.style.visibility="hidden";
            }else{
                sPop = o.pop.substring(4,o.pop.length);                
                popLayer.style.visibility="visible";
            }
    　　　    popLayer.filters[0].play();
    　　　    showit(str_len,i);
    　　}
    }
        
}
function showit(str_len,i){
    var t_ary = new Array(new Array('<tr bgcolor="#00C80B" align="left"><td><font style="font-size: 11px; color: #FFFFFF">↖【叶绿辉香】-http://www.91ylhx.cn</font></td></tr>',
                '<tr bgcolor="#00C80B" align="left"><td><font style="font-size: 11px; color: #FFFFFF">↙【叶绿辉香】-http://www.91ylhx.cn</font></td></tr>'),new Array(
                '<tr bgcolor="#00C80B" align="right"><td><font style="font-size: 11px; color: #FFFFFF">【叶绿辉香】-http://www.91ylhx.cn↗</font></td></tr>',
                '<tr bgcolor="#00C80B" align="right"><td><font style="font-size: 11px; color: #FFFFFF">【叶绿辉香】-http://www.91ylhx.cn↘</font></td></tr>')
                );
    var t_i1 = 0;
    var t_i2 = 0;
    //设定宽度和高度
    var temp = parseInt((str_len*5+10) < 220 ? 220 :(str_len*5+10),10);
    var X_width  = parseInt((temp > 500 ? 500 : temp),10);
    var X_height = parseInt((i+2)*20,10);
    
    var H_left = parseInt(event.clientX,10);
    var H_top  = parseInt(event.clientY,10);
    var bodyW = parseInt(get_wh()[0],10);
    var bodyH = parseInt(get_wh()[1],10);
    var ti = 10;
    popLayer.style.left = ((H_left + X_width + ti >  bodyW) ? (H_left - X_width - ti) : H_left)+document.documentElement.scrollLeft;
    popLayer.style.top = ((H_top + X_height + ti >  bodyH) ? (H_top - X_height - ti) : H_top)+document.documentElement.scrollTop;
    t_i1 = (H_left + X_width + ti >  bodyW) ? 1 : 0;
    t_i2 = (H_top + X_height + ti >  bodyH) ? 1 : 0;
    popLayer.className=popStyle;
    popLayer.innerHTML='<table width="'+X_width+'" width="'+X_height+'" border="0">'+((H_top + X_height + ti >  bodyH) ? '<tr><td>'+sPop+'</td></tr>'+t_ary[t_i1][t_i2] : t_ary[t_i1][t_i2]+'<tr><td>'+sPop+'</td></tr>')+'</table>';
    
    if(popLayer.offsetWidth > 500){ popLayer.style.width = 500;}
}
function get_wh(){
    var winWidth = 0,winHeight = 0;
    //获取窗口宽度
    if(window.innerWidth){
        winWidth = window.innerWidth;
    }else if((document.body) && (document.body.clientWidth)){
        winWidth = document.body.clientWidth;
    }
    //获取窗口高度
    if(window.innerHeight){
        winHeight = window.innerHeight;
    }else if((document.body) && (document.body.clientHeight)){
        winHeight = document.body.clientHeight;
    }
    //通过深入Document内部对body进行检测，获取窗口大小   
    if(document.documentElement && document.documentElement.clientHeight && document.documentElement.clientWidth){
        winHeight = document.documentElement.clientHeight;
        winWidth = document.documentElement.clientWidth;
    }
    return new Array(winWidth,winHeight);
}
function x_str_len(str){    //获得字符串的长度
    return str.replace(/[^\x00-\xff]/g, "xx").length;
}
function sub_str(str,start,len,flag){
    //截取中文/英文字符串
    if(len < 1) return "";
    var xtmep = "";
    var str_len = x_str_len(str);
    var str_array = str.split("");
    var num = 0;
    var temp = str.replace(/[^\x00-\xff]/g, "xx").split("");
    var i = 0;
    var start1 = 0;
    while(i < temp.length){
        if(temp[i] == "x") ++i;
        ++i;
        if(start < i) break;
        ++start1;
    }
    for(;start1 < str_array.length;start1++){
        if(num >= len) break;
        num += x_str_len(str_array[start1]);
        xtmep += str_array[start1];
    }
    if(flag != "N" && ((flag == "Y" && start+len < str_len) || flag == "YY")){ xtmep += "...";}
    return xtmep;
}