100分求一段简单代码

<SCRIPT LANGUAGE="JavaScript">
var rand1 = 0;
var useRand = 0;images = new Array;
images[1] = new Image();
images[1].src = "images/photo.jpg";
images[2] = new Image();
images[2].src = "images/photos.jpg";
images[3] = new Image();
images[3].src = "images/pic_008.jpg";
images[4] = new Image();
images[4].src = "images/pic_009.jpg";
var imgnum = images.length - 1;
do{
var randnum = Math.random();
rand1 = Math.round((imgnum - 1) * randnum) + 1;
}while (rand1 == useRand);
useRand = rand1;function randbg(){
document.write ('<tr><td height="151" background="'+ images[useRand].src +'" id="randimg">');
document.write ('<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="770" height="150"><param name="movie" value="images/1126a.swf"><param name="quality" value="high"><param name="wmode" value="transparent"><embed src="images/1126a.swf" width="770" height="150" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" wmode="transparent"></embed></object>');
document.write ('</td></tr>')
}
</SCRIPT>这是随机图片的，自己作相应修改即可。

解决方案 »

  1.   

    var s=Math.round(Math.random()*3)
    s 的结果只有4种可能0,1,2,3 然后你根据s的不同值来决定是哪个Flash
    用switch 语句
      

  2.   

    昨天的没有好吗?
    <body onload="InitFlash()">
    <table id="TableID"></table>
    <script>
    function InitFlash()
    {
    var strFlashPath=Math.round(Math.random()*3)+".swf";
    TableID.innerHTML="<table id='TableID'><object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' codebase='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0' width='770' height='150'><param name='movie' value='"+strFlashPaht+"'><param name='quality' value='high'><param name="wmode" value='transparent'><embed src='"+strFlashPath+"' width='770' height='150' quality='high' pluginspage='http://www.macromedia.com/go/getflashplayer' type='application/x-shockwave-flash' wmode='transparent'></embed></object></talbe>";
    }
    </script>