悠悠博客 关注Ajax技术与web开发

<script language="JavaScript">
var step = 5;
var num = 0;
var limit = 50;
function mosaic(){
if (num<limit){
t1.style.left=((parseInt(t1.style.left)? parseInt(t1.style.left):0)-num);
t1.style.top=((parseInt(t1.style.top)? parseInt(t1.style.top):0)-num);
t1.width += num*2;
t1.height += num*2;
num++;
setTimeout("mosaic();",50);
}else num = 0;
}
</script>
<div id="d1" style="position:absolute;top:10px;left:10px;width:400px;height:60px;border:1 black solid;overflow:hidden"><img id="t1" style="position:absolute;" src="http://www.ajaxstu.com/Files/File/2007-11/24/JEB3AHK7DD35E900F6.gif""></div>
<br><br><br><br>
<input name="mosaic" type="button" value="马赛克" onclick="mosaic();">Alpha 滤镜 : 线形 <img src=http://