<SCRIPT Language="JavaScript">
<!--
y       = 150;  //　y座標
dy      = 0;    //　移動用
baseY   = 200   //　地面の高さ
offsset = 3;    //　移動量
timerID = 0;    //　タイマー変数
time    = 100;  //　動作間隔

function getPos()
{
        if (document.layers)    y = document["mvTitle"].top;
        if (document.all)       y = window["mvTitle"].style.pixelTop;
}

function moveTitle()
{
        y = y + dy;
        if (y >= baseY) { dy = -dy; y = baseY;}
        dy = dy + offsset;
        if (document.layers)    document["mvTitle"].top = y;
        if (document.all)       window["mvTitle"].style.pixelTop = y;
        clearTimeout(timerID);
        timerID = setTimeout("moveTitle()",time);
}
// -->
</SCRIPT>