请问如果让它在FF里正常运行?谢谢.

这是一个div的控制,如何让它在FF里运行?请问是那里不兼容?谢谢.


var obj = document.getElementById('AdLayer');
var x = 20;
var y = 200;
var diff = (document.body.scrollTop + y - obj.style.posTop)*.40;
var y = document.body.scrollTop + y - diff;
eval("obj.style.posTop = y");
eval("obj.style.posLeft = x");
setTimeout("MoveLayer('AdLayer', " + class_id + ", " + flag + ");", 20);

sytle.top&style.left

style.top="100px"
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