我想控制图片隔5秒切换一次，可是没效果，请高手解答，附代码如下：

<script type="text/javascript">
    imgUrl1="1.jpg";
    imgtext1=""
    imgLink1=escape("");
    imgUrl2="2.jpg";
    imgtext2=""
    imgLink2=escape("");
  
    var focus_width=560
    var focus_height=306
    var text_height=0
    var swf_height = focus_height+text_height
    var stop_time =1
    var pics=imgUrl1+"|"+imgUrl2
    var links=imgLink1+"|"+imgLink2
    var texts=imgtext1+"|"+imgtext2    var flashCode = '<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/hotdeploy/flash/swflash.cab#version=6,0,0,0" width="'+ focus_width +'" height="'+ swf_height +'">';
    flashCode = flashCode + '<param name="allowScriptAccess" value="sameDomain"><param name="movie" value="focus2.swf"><param name="quality" value="high"><param name="bgcolor" value="#F0F0F0">';
    flashCode = flashCode + '<param name="menu" value="false"><param name=wmode value="opaque">';
    flashCode = flashCode + '<param name="FlashVars" value="pics='+pics+'&links='+links+'&texts='+texts+'&borderwidth='+focus_width+'&borderheight='+focus_height+'&textheight='+text_height+'&stop_time='+stop_time+'">';
    flashCode = flashCode + '<embed src="focus2.swf" FlashVars="pics='+pics+'&links='+links+'&texts='+texts+'&borderwidth='+focus_width+'&borderheight='+focus_height+'&textheight='+text_height+'&stop_time='+stop_time+'"quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="'+ focus_width +'" height="'+ swf_height +'"></embed>';
    flashCode = flashCode + '</object>';
    document.write(flashCode)