// JavaScript Document
var cfg_fade_switch=true;       
var cfg_xoffset=9;         
var cfg_yoffset=20;        
var cfg_mouse_follow=true; 
var cfg_hide_delay=3000;    
var cfg_txt_tag='alt'; 
var cfg_is_show=true; 
var cfg_tags = new Array("select","a","area","b","big","caption","center","code","dd","div","dl","dt","em","h1","h2","h3","h4","h5","h6","i","img","input","li","map","ol","p","pre","s","small","span","strike","strong","sub","sup","table","td","th","tr","tt","u","var","ul","layer"); 

document.write("<style>.navtext_div{PADDING-RIGHT: 6px; PADDING-LEFT: 6px;PADDING-TOP: 2px; PADDING-BOTTOM: 1px; FONT-SIZE: 12px; Z-INDEX: 99; VISIBILITY: hidden; COLOR: #333333; BORDER: 1px #8899AA dashed;FONT-FAMILY: Courier New,tahoma,arial; POSITION: absolute; BACKGROUND-COLOR: #FFFFCC;}</style>"); 
document.write('<div id="navtext_div" class="navtext_div" style="visibility:hidden; position:absolute; top:0px; left:-400px; z-index:10000; padding:3px"></div>'); 

function xalt_props(){ 
    this.w3c=(document.getElementById)?true:false; 
    this.ns4=(document.layers)?true:false; 
    this.ie4=(document.all && !this.w3c)?true:false; 
    this.ie5=(document.all && this.w3c)?true:false; 
    this.ns6=(this.w3c && navigator.appName.indexOf("Netscape")>=0 )?true:false; 
    this.w_y=0; 
    this.w_x=0; 
    this.navtxt=null; 
    this.boxheight=0; 
    this.boxwidth=0; 
    this.ishover=true; 
    this.ieop=0; 
    this.op_id=0; 
    this.oktomove=true; 
    this.dy=0; 
} 
function xalt_kill_errors() { 
    return true; 
} 

var XALT=new xalt_props(); 

function xalt_set_mouse_follow(mouse_follow){//true or false 
    cfg_mouse_follow=mouse_follow; 
} 

function xalt_set_fade_switch(fade_switch){//true or false 
    cfg_fade_switch=fade_switch; 
    if(!cfg_fade_switch)XALT.ieop=100; 
} 

function xalt_get_window_dims(){ 
    XALT.w_y=(XALT.ie5||XALT.ie4)?document.body.clientHeight:window.innerHeight; 
    XALT.w_x=(XALT.ie5||XALT.ie4)?document.body.clientWidth:window.innerWidth; 
} 

function xalt_get_box_width(){ 
    if(XALT.ns4)XALT.boxwidth=(XALT.navtxt.document.width)? XALT.navtxt.document.width : XALT.navtxt.clip.width; 
    else if(XALT.ie4)XALT.boxwidth=(XALT.navtxt.style.pixelWidth)? XALT.navtxt.style.pixelWidth : XALT.navtxt.offsetWidth; 
    else XALT.boxwidth=(XALT.navtxt.style.width)? parseInt(XALT.navtxt.style.width) : parseInt(XALT.navtxt.offsetWidth); 
} 

function xalt_get_box_height(){ 
    if(XALT.ns4)XALT.boxheight=(XALT.navtxt.document.height)? XALT.navtxt.document.height : XALT.navtxt.clip.height; 
    else if(XALT.ie4)XALT.boxheight=(XALT.navtxt.style.pixelHeight)? XALT.navtxt.style.pixelHeight : XALT.navtxt.offsetHeight; 
    else XALT.boxheight=parseInt(XALT.navtxt.offsetHeight); 
} 

function xalt_move_nav_txt(x,y){ 
    if(XALT.ns4){ 
        XALT.navtxt.moveTo(x,y); 
    }else{ 
        XALT.navtxt.style.left=x+'px'; 
        XALT.navtxt.style.top=y+'px'; 
    } 
} 

function xalt_get_page_scrolly(){ 
    if(XALT.ie5||XALT.ie4){ 
        if(document.documentElement.scrollTop > 0) return document.documentElement.scrollTop; 
        return document.body.scrollTop; 
    }else return window.pageYOffset; 
} 

function xalt_get_page_scrollx(){ 
    if(XALT.ie5||XALT.ie4){ 
        if(document.documentElement.scrollLeft > 0) return document.documentElement.scrollLeft; 
        return document.body.scrollLeft; 
    }else return window.pageXOffset; 
} 

function xalt_write_in_div(text){ 
    if(XALT.ns4){ 
        XALT.navtxt.document.open(); 
        XALT.navtxt.document.write(text); 
        XALT.navtxt.document.close(); 
    } 
    else XALT.navtxt.innerHTML=text; 
} 

function xalt_write_txt(text){ 
    if(cfg_fade_switch && (XALT.ie4||XALT.w3c))clearInterval(XALT.op_id); 
    if(text!=0 && cfg_is_show ){ 
        if(!cfg_mouse_follow)clearTimeout(XALT.dy); 
        XALT.oktomove=true; 
        XALT.ishover=true; 
        if(XALT.ns4)text='<div class="navtext_div">'+text+''+'</div>'; 
        if(XALT.w3c||XALT.ie4)XALT.navtxt.style.textAlign="left"; 
        xalt_write_in_div(text); 
        if(XALT.ns4)XALT.navtxt.visibility="show"; 
        else{ 
            //XALT.navtxt.style.display="inline"; 
            XALT.navtxt.style.visibility="visible"; 
        } 
        xalt_get_box_height(); 
        if((XALT.w3c||XALT.ie4) && cfg_fade_switch){ 
            if(XALT.ie4||XALT.ie5)XALT.navtxt.style.filter="alpha(opacity=0)"; 
            if(XALT.ns6)XALT.navtxt.style.MozOpacity=0; 
            XALT.ieop=0; 
            XALT.op_id=setInterval('xalt_do_opacity()',10); 
        } 
        cfg_is_show=false; 
    }else{ 
        cfg_is_show=true; 
        if(cfg_mouse_follow)xalt_hide_alt_txt(); 
        else XALT.dy=setTimeout('xalt_hide_alt_txt()',cfg_hide_delay); 
    } 
} 

function xalt_hide_alt_txt(){ 
    if(XALT.ns4)XALT.navtxt.visibility="hide"; 
    else{ 
        //XALT.navtxt.style.display="none"; 
        XALT.navtxt.style.visibility="hidden"; 
    } 
    xalt_move_nav_txt(-XALT.boxwidth-10,0); 
    xalt_write_in_div(''); 
} 

function xalt_do_opacity(){ 
    if(XALT.ieop<=100){ 
    XALT.ieop+=32; 
    if(XALT.ie4||XALT.ie5)XALT.navtxt.style.filter="alpha(opacity="+XALT.ieop+")"; 
    if(XALT.ns6)XALT.navtxt.style.MozOpacity=XALT.ieop/100; 
    }else clearInterval(XALT.op_id); 
} 

function xalt_move_obj(evt){ 
    mx=(XALT.ie5||XALT.ie4)?event.clientX:evt.pageX; 
    my=(XALT.ie5||XALT.ie4)?event.clientY:evt.pageY; 
    if(XALT.ishover && XALT.oktomove){ 
        margin=(XALT.ie4||XALT.ie5)?5:25; 
        if(XALT.ns6)if(document.height+27-window.innerHeight<0)margin=15; 
        if(XALT.ns4)if(document.height-window.innerHeight<0)margin=10; 
        if(XALT.ns4||XALT.ns6)mx-=xalt_get_page_scrollx(); 
        if(XALT.ns4)my-=xalt_get_page_scrolly(); 
        xoff=mx+cfg_xoffset; 
        yoff=(my+XALT.boxheight+cfg_yoffset-((XALT.ns6)?xalt_get_page_scrolly():0)>=XALT.w_y)? -5-XALT.boxheight-cfg_yoffset: cfg_yoffset; 
        xalt_move_nav_txt( Math.min(XALT.w_x-XALT.boxwidth-margin , Math.max(2,xoff))+xalt_get_page_scrollx(), my+yoff+((!XALT.ns6)?xalt_get_page_scrolly():0)); 
        if(!cfg_mouse_follow)XALT.oktomove=false; 
    } 
} 
function xalt_ns4_tags(tag_type, t_d, t_y){ 
    t_d = t_d || document; 
    t_y = t_y || new Array(); 
    var t_x = (tag_type=="a")? t_d.links : t_d.layers; 
    for(var z = t_x.length; z--;) t_y[t_y.length] = t_x[z]; 
    for(var z = t_d.layers.length; z--;) t_y = xalt_ns4_tags(tag_type, t_d.layers[z].document, t_y); 
    return t_y; 
} 

function xalt_onload(){ 
    window.onerror = xalt_kill_errors; 
    if (!(XALT.w3c || XALT.ns4 || XALT.ie4 || XALT.ie5 || XALT.ns6)) return; 
    if(XALT.ns4||XALT.ns6){ 
        window.document.captureEvents(Event.MOUSEMOVE); 
        window.document.addEventListener("mousemove", xalt_move_obj, true); 
        window.document.addEventListener("resize", xalt_get_window_dims, true); 
    }else if(XALT.ie4||XALT.ie5||XALT.w3c){ 
        window.document.attachEvent("onmousemove", xalt_move_obj); 
        window.document.attachEvent("onresize", xalt_get_window_dims); 
    } 
    XALT.navtxt=(XALT.ns4)?document.layers['navtext_div']:(XALT.ie4)?document.all['navtext_div']:(XALT.w3c)?document.getElementById('navtext_div'):null; 
    xalt_get_box_width(); 
    xalt_get_box_height(); 
    xalt_get_window_dims(); 
    if(XALT.ie4||XALT.ie5&&cfg_fade_switch)XALT.navtxt.style.filter="alpha(opacity=100)"; 
    var i = cfg_tags.length, tags; 
    while(i--){ 
        tags = (XALT.ie4 || XALT.ie5) ? (document.all.tags(cfg_tags[i]) || 1) 
            : document.getElementsByTagName? (document.getElementsByTagName(cfg_tags[i]) || 1) 
            : (!XALT.ns4 && cfg_tags[i]=="a")? document.links 
            : 1; 
        if (XALT.ns4 && (cfg_tags[i] == "a" || cfg_tags[i] == "layer")) tags = xalt_ns4_tags(cfg_tags[i]); 
        var j = tags.length; 
        while(j--){ 
            var txt = tags[j].getAttribute(cfg_txt_tag); 
            if (tags[j].alt) tags[j].alt = "";//ÆÁ±ÎĬÈϵÄALT±êÇ© 
            //if (tags[j].title) tags[j].title = ""; 
            if(txt != null && txt != ''){ 
                tags[j].setAttribute('xalt_txt', txt); 
                tags[j].setAttribute(cfg_txt_tag, ''); 
                tags[j].onmouseover = function() { 
                    xalt_write_txt(this.getAttribute('xalt_txt')); 
                    if(!cfg_mouse_follow)XALT.dy=setTimeout('xalt_hide_alt_txt()',cfg_hide_delay); 
                } 
                tags[j].onmouseout = function() { 
                    xalt_write_txt(0); 
                    if(!cfg_mouse_follow)clearTimeout(XALT.dy); 
                } 

            } 
        } 
    } 
} 

if(XALT.ns4||XALT.ns6){ 
    window.addEventListener("load", xalt_onload, true); 
}else if(XALT.ie4||XALT.ie5||XALT.w3c){ 
     window.attachEvent("onload", xalt_onload); 
}