function goTop()
{
        x = document.body.scrollLeft;
        y = document.body.scrollTop;
        step = 2;

        while ((x != 0) || (y != 0)) {
                scroll (x, y);
                step += (step * step / 300);
                x -= step;
                y -= step;
                if (x < 0) x = 0;
                if (y < 0) y = 0;
        } 
        scroll (0, 0);
}

/*
var displayed='<img src="./sub_img/topicon.jpg" align="middle" alt="ÃÖ»ó´ÜÀ¸·Î °¡´Â ¹öÆ°">'  //À̹ÌÁö·Î ´ëü °¡´É

var logolink='javascript:goTop()'
var ns4=document.layers
var ie4=document.all
var ns6=document.getElementById&&!document.all

function ietruebody(){
    return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function regenerate(){
    window.location.reload()
}
function regenerate2(){
    if (ns4)
        setTimeout("window.onresize=regenerate",400)
    }

    if (ie4||ns6)
        document.write('<div id="goTop">'+displayed+'</div>')

function createtext(){ //function for NS4
    staticimage=new Layer(5)
    staticimage.left=-300
    staticimage.document.write('<a href="'+logolink+'">'+displayed+'</a>')
    staticimage.document.close()
    staticimage.visibility="show"
    regenerate2()
    staticitns()
}

function staticit(){ //function for IE4/ NS6
    var w2=ns6? pageXOffset+w : ietruebody().scrollLeft+w
    var h2=ns6? pageYOffset+h : ietruebody().scrollTop+h
        crosslogo.style.left=w2+"px"
        crosslogo.style.top=h2+"px"
}

function staticit2(){ //function for NS4
    staticimage.left=pageXOffset+window.innerWidth-staticimage.document.width-28
    staticimage.top=pageYOffset+window.innerHeight-staticimage.document.height-10
}

function inserttext(){ //function for IE4/ NS6
    if (ie4)
        crosslogo=document.all.goTop
    else if (ns6)
        crosslogo=document.getElementById("goTop")
        crosslogo.innerHTML='<a href="'+logolink+'">'+displayed+'</a>'
        w=ns6 || window.opera? 200 : 200
        h=ns6 || window.opera? window.innerHeight-crosslogo.offsetHeight-15 : ietruebody().clientHeight-crosslogo.offsetHeight-10
        crosslogo.style.left=w+"px"
        crosslogo.style.top=h+"px"
    if (ie4)
        window.onscroll=staticit
    else if (ns6)
        startstatic=setInterval("staticit()",100)
    }

    if (ie4||ns6){
    if (window.addEventListener)
        window.addEventListener("load", inserttext, false)
    else if (window.attachEvent)
        window.attachEvent("onload", inserttext)
    else
        window.onload=inserttext
        window.onresize=new Function("window.location.reload()")
    }
    else if (ns4)
        window.onload=createtext

function staticitns(){ //function for NS4
    startstatic=setInterval("staticit2()",90)
}
*/