请各位大侠帮我看看这代码哪里有错，为什么显示不正常啊

<div class="mbm cl" style="width:420px;overflow:hidden">
<script type="text/javascript">
var focus_width=420;
var focus_height=80;
var text_height=0;
var swf_height = focus_height+text_height;
var pics='images/ad01_1.jpg|images/ad01_2.jpg';
var links='viewthread.php?tid=63646|viewthread.php?tid=32771';
var texts='';
document.write('<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cabjavascript:void(0)version=6,0,0,0" width="'+ focus_width +'" height="'+ swf_height +'" align="left"  hspace="0">');
document.write('<param name="allowScriptAccess" value="sameDomain"><param name="movie" value="images/pixviewer.swf"><param name="quality" value="high"><param name="bgcolor" value="#F0F0F0">');
document.write('<param name="menu" value="false"><param name=wmode value="opaque">');
document.write('<param name="FlashVars" value="pics='+pics+'&links='+links+'&texts='+texts+'&borderwidth='+focus_width+'&borderheight='+focus_height+'&textheight='+text_height+'">');
document.write('<embed src="images/pixviewer.swf" wmode="opaque" FlashVars="pics='+pics+'&links='+links+'&texts='+texts+'&borderwidth='+focus_width+'&borderheight='+focus_height+'&textheight='+text_height+'" menu="false" bgcolor="#F0F0F0" quality="high" width="'+ focus_width +'" height="'+ swf_height +'" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />');
document.write('</object>');
</script>
</div>

不知道为什么就吧显示第一个图片了。链接地址：www.xwcaogen.com

好复杂，看不懂！