sb-1  鼠标碰到变换背景颜色的特效：

<script language="javascript">
function backcolor(form){
temp = ""
for (var i = 0; i < 6; i++) {
temp = form.color[i].value
if (form.color[i].checked){ document.bgColor = temp }
}
}
function randombackground(){
document.bgColor = getColor()
}
function getColor(){
currentdate = new Date()
backgroundcolor = currentdate.getSeconds()
if (backgroundcolor > 44)
backgroundcolor = backgroundcolor - 45
else if (backgroundcolor > 29)
backgroundcolor = backgroundcolor - 30
else if (backgroundcolor > 8)
backgroundcolor = backgroundcolor - 6
if (backgroundcolor == 0 ) return "olive";

else if (backgroundcolor == 1 ) return "CCFFFF";
else if (backgroundcolor == 2 ) return "CCFFCC";
else if (backgroundcolor == 3 ) return "99CCFF";
else if (backgroundcolor == 4 ) return "FFCC99";
else if (backgroundcolor == 5 ) return "FF99CC";
}
</script>
<a href=http://链接地址 onMouseOver=randombackground()>链接文字</a>