2.setTimeOut是可以的吧.你試試下面的
<SCRIPT>
var g_oToHide = null;
function fnHide(oToHide){
g_oToHide = oToHide;
window.setTimeout(fnHide2, 3000);
}
function fnHide2(sID){
if (g_oToHide) {
g_oToHide.style.display="none";
}
}
</SCRIPT>
<INPUT TYPE=button VALUE="Now you see me ..." ID="oHideButton"
onclick="fnHide(this)">