[求助]组件不能实现

为什么要用组件呢，在其它机就很难保证能运行了，运用JS最好的：

下面提供一个非常好的广告轮转JS代码

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<script language="javascript">

//原创作品:2007-1-13 天涯听雨
var widths=459;
var heights=385;
var counts=6;
img1=new Image ();img1.src='/Images/Index_Left_1.jpg';url1=new Image ();url1.src='#'; //定义过渡图片相关变量
img2=new Image ();img2.src='/Images/Index_Left_2.jpg';url2=new Image ();url2.src='#';
img3=new Image ();img3.src='/Images/Index_Left_3.jpg';url3=new Image ();url3.src='#';
img4=new Image ();img4.src='/Images/Index_Left_4.jpg';url4=new Image ();url4.src='#';
img5=new Image ();img5.src='/Images/Index_Left_5.jpg';url5=new Image ();url5.src='#';
img6=new Image ();img6.src='/Images/Index_Left_6.jpg';url6=new Image ();url6.src='#';

var nn=1;
var key=0;
function change_img()
{if(key==0){key=1;}
else if(document.all)
{document.getElementById("pic").filters[0].Apply();document.getElementById("pic").filters[0].Play(duration=2);}
eval('document.getElementById("pic").src=img'+nn+'.src');
//eval('document.getElementById("url").href=url'+nn+'.src');
for (var i=1;i<=counts;i++){document.getElementById("xxjdjj"+i).className='axx';}
document.getElementById("xxjdjj"+nn).className='bxx';
nn++;if(nn>counts){nn=1;}
tt=setTimeout('change_img()',3000);}//过渡时间
function changeimg(n){nn=n;window.clearInterval(tt);change_img();}
document.write('<style>');
document.write('.axx{padding:1px 7px;border-left:#cccccc 1px solid;}');
document.write('a.axx:link,a.axx:visited,a.axx:hover{text-decoration:none;color:#fff;line-height:12px;font:9px sans-serif;background-color:#666;}');
document.write('a.axx:active,a.axx:hover{text-decoration:none;color:#fff;line-height:12px;font:9px sans-serif;background-color:#999;}');
document.write('.bxx{padding:1px 7px;border-left:#cccccc 1px solid;}');
document.write('a.bxx:link,a.bxx:visited{text-decoration:none;color:#fff;line-height:12px;font:9px sans-serif;background-color:#D34600;}');
document.write('a.bxx:active,a.bxx:hover{text-decoration:none;color:#fff;line-height:12px;font:9px sans-serif;background-color:#D34600;}');
document.write('</style>');
document.write('<div style="width:'+widths+'px;height:'+heights+'px;overflow:hidden;text-overflow:clip;">');
document.write('<div><img id="pic" style="border:0px;filter:progid:dximagetransform.microsoft.wipe(gradientsize=1.0,wipestyle=4, motion=forward)" width='+widths+' height='+heights+' /></div>');
document.write('<div style="filter:alpha(style=1,opacity=10,finishOpacity=80);background: #888888;width:100%-2px;text-align:right;top:-12px;position:relative;margin:1px;height:12px;padding:0px;margin:0px;border:0px;">');
for(var i=1;i<counts+1;i++){
document.write('<a href="javascript:changeimg('+i+');" id="xxjdjj'+i+'" class="axx" target="_self">'+i+'</a>');
}
document.write('</div></div>');
change_img();
</script>