谁知道网页中调入的flash怎样相对居中对齐啊

我的代码如下：
</script>
<script language=javascript>
document.write("<div id=divAll style='position:absolute;'><div id=divCont style='position:absolute; width:386; height:60; top:0; left:-12; clip:rect(0,1435,176,0)'><div id=divNews style='position:absolute; top:0; left:0; right:0'><embed src=flow.swf qulity=high width=1435 height=176 onload=myload wmode=transparent></embed></div></div></div>");
</script><script language=javascript>
{
if (navigator.appName == "Netscape")
{document.write("<layer id=divCont onLoad='moveToAbsolute(layer1.pageX-160,layer1.pageY);clip.height=600;clip.width=1135; visibility=\"show\";'><layer id=divNews position:absolute; top:0; left:0><embed src=flow.swf qulity=high width=1435 height=25 wmode=transparent></embed></layer></layer>")
}