function set() {
    window.setTimeout("bomb()", 3000);
}

function bomb() {
    down(1,"http://alka.blog.shinobi.jp/",-9,0,0,0.3,8,0);
}

function down(pla,cnt,spd,loc,pre,bnd,acc,wid) {
    if (( loc != 100 ) || ( pre != 100 )) {
        pre = loc;
        wid += acc;
        if ( loc + spd >= 100 ) {
            spd = Math.floor( spd * bnd ) * -1;
            loc = 100; }
        else {
            loc += spd;
            spd++; }
        if     ( pla == 1 ) {
            document.all.T1.innerHTML = '<SPAN STYLE="position:relative;top:'+loc+'px;left:'+wid+'">'+cnt+'</SPAN>'; }
        setTimeout("down("+pla+","+"'"+cnt+"'"+","+spd+","+loc+","+pre+","+bnd+","+acc+","+wid+")", 25); }
}

document.write('<SPAN ID="T1">http://alka.blog.shinobi.jp/</SPAN>');
document.all.T1.innerHTML = '<A HREF="#" return false;">http://alka.blog.shinobi.jp/</A>';