var imgWidth=325;              //图片宽
var imgHeight=225;             //图片高
var TimeOut=5000;              //每张图切换时间 (单位毫秒);
var imgAlt=new Array();
var imgUrl=new Array();
var imgLink=new Array();
var imgtext=new Array();
var button_off='f_button_off';  //className
var button_on='f_button_on';    //className
var imgStyle='';               //图片style （注： 不是class)
var focustextStyle='height:25px; line-height:25px; text-align:center;';         //焦点文字style （注： 不是class)
var textClass='';
imgUrl[1]='http://www.ladyscn.com//uploadfile/201201/30faebbbd91eb5f9fe68e4ff5611ac97.jpg';
imgLink[1]='http://www.takingthestage.org/cn/';
imgAlt[1]='“占领舞台”《Caster》';
imgtext[1]='<a href="http://www.takingthestage.org/cn/">“占领舞台”《Caster》</a>';
imgUrl[2]='http://www.ladyscn.com//uploadfile/201201/c7d397622e210e9abd81f36873a0abaf.jpg';
imgLink[2]='http://blog.sina.com.cn/s/blog_4db9b48d0102dx15.html';
imgAlt[2]='设计的设计 原研哉中国展·上海';
imgtext[2]='<a href="http://blog.sina.com.cn/s/blog_4db9b48d0102dx15.html">设计的设计 原研哉中国展·上海</a>';
imgUrl[3]='http://img03.taobaocdn.com/imgextra/i3/13760177/T2frt9XhFaXXXXXXXX_!!13760177.jpg';
imgLink[3]='http://hobbywood.taobao.com/?spm=1101_ZAl.1-uOkK.3-503Kuv&userId=&shopId=33282325&view_type=&order_t';
imgAlt[3]='Jennifer Beals 经典电影DVD收藏';
imgtext[3]='<a href="http://hobbywood.taobao.com/?spm=1101_ZAl.1-uOkK.3-503Kuv&userId=&shopId=33282325&view_type=&order_t">Jennifer Beals 经典电影DVD收藏</a>';
imgUrl[4]='http://www.ladyscn.com/newsite/home/attachment/201108/31/15_1314812194c7Zn.jpg';
imgLink[4]='http://ladyscn.taobao.com/';
imgAlt[4]='深秋小屋淘宝店';
imgtext[4]='<a href="http://ladyscn.taobao.com/">深秋小屋淘宝店</a>';

var count=0;
for (i=1;i<=imgUrl.length;i++) {
  if( (imgUrl[i]!="") && (imgLink[i]!="")&&(imgAlt[i]!="")&&(imgUrl[i]!=null) && (imgLink[i]!=null)&&(imgAlt[i]!=null) ) 					
	{count++;} else {break;}
}
function change(i){  
  window.clearInterval(theTimer);   
  switch(browser){
  //ie6 以上版本
   case 1 :
      adNum = i; nextAd_1();
	  break;
  //其他浏览器
   case 2 :
      adNum = i-1; nextAd_2();
      break;
  }
 
}
/*   nextAd_1   */
function nextAd_1() {	
	if(bStart == 0)
	{	    
		bStart = 1;		
		theTimer=setTimeout('nextAd_1()', TimeOut);
		return;
	}
	else
	{       
	    oTransContainer.filters[0].Apply();	
		for (var i=1;i<=count;i++){
		//document.getElementById('focus_summary'+i).style.display="none";
    	document.getElementById('b'+i).className = button_off;
		document.images['oDIV'+i].style.display = "none";
	    }
		//document.getElementById('focus_summary'+adNum).style.display="block";
     	document.getElementById('b'+adNum).className = button_on;
		//document.getElementById('oDIV'+adNum).href=imgLink[adNum];
		//document.getElementById('oDIV'+adNum).alt=imgAlt[adNum];
		document.images['oDIV'+adNum].style.display = "block";		
		document.getElementById('f_text').innerHTML=imgtext[adNum];
		//document.getElementById('focus_summary').innerHTML=	imgSummary[adNum];
		oTransContainer.filters[0].Play(duration=2);
		if(adNum+1 > count) 
			adNum = 1;
		else
			adNum++;
	}	
	theTimer=setTimeout("nextAd_1()", TimeOut);
}
/*   nextAd_2   */
function nextAd_2(){
   if(adNum < count) adNum++;
	else adNum = 1;
	document.images.imgInit.src=imgUrl[adNum];
	document.images.imgInit.alt=imgAlt[adNum];	
	for (var i=1;i<=count;i++){
    	document.getElementById('b'+i).className = button_off;
		//document.getElementById('focus_summary'+i).style.display="none";
	}	
	//document.getElementById('focus_summary'+adNum).style.display="none";
	document.getElementById('b'+adNum).className = button_on;
    document.getElementById('f_text').innerHTML=imgtext[adNum];	
	//document.getElementById('focus_summary').innerHTML=	imgSummary[adNum];
	document.getElementById('b'+adNum).href=imgLink[adNum];
	document.getElementById('b'+adNum).alt=imgAlt[adNum];
	theTimer=setTimeout("nextAd_2()", TimeOut);
}
/*   show_1   */
function show_1(){
   document.write('<div id="focuse">');   
   document.write('<DIV id="oTransContainer" style="FILTER: progid:DXImageTransform.Microsoft.Wipe(GradientSize=1.0, wipeStyle=0, motion=reverse); WIDTH: '+imgWidth+'; HEIGHT: '+imgHeight+'">');
   //图片
   document.write('<a href="'+imgLink[1]+'" target="_blank" onFocus="this.blur();"><img id="oDIV1" src="'+imgUrl[1]+'" width='+imgWidth+' height='+imgHeight+' border=0 align="absmiddle" alt="'+imgAlt[1]+'" style='+imgStyle+'></a>');
  for(var i=2;i<=count;i++){
      document.write('<a href="'+imgLink[i]+'" target="_blank" onFocus="this.blur();"><img id="oDIV'+i+'" src="'+imgUrl[i]+'" width='+imgWidth+' height='+imgHeight+' border=0 style="DISPLAY: none" alt="'+imgAlt[i]+'" style='+imgStyle+'></a>');
  }
  
   document.write('</div>');   
   //document.write('<div id="focustext" style="'+focustextStyle+'">'+imgtext[1]+'</div>');
   document.getElementById('f_text').innerHTML=imgtext[1];
   document.write('</div>');
   //document.getElementById('f_link').href=imgLink[1];
   //document.getElementById('blank_pic').alt=imgAlt[1];
   nextAd_1();
}
/*   show_2   */
function show_2(){
   document.write('<div id="focuse">');   
   document.write('<a id="imgLink" href="'+imgLink[1]+'" target=_blank><img src="'+imgUrl[1]+'" name="imgInit" width='+imgWidth+' height='+imgHeight+' border=0 alt="'+imgAlt[1]+'" style='+imgStyle+'></a>');
   //document.write('<div id="focustext" style="'+focustextStyle+'">'+imgtext[1]+'</div>');
   document.getElementById('f_text').innerHTML=imgtext[1];
   document.write('</div>');
   //document.getElementById('f_link').href=imgLink[1];
   //document.getElementById('blank_pic').alt=imgAlt[1];
   nextAd_2();   
}
/*  goUrl()  */
function goUrl(){
window.open(imgLink[adNum],'_blank');
}
/*  playTran()  */
function playTran(){
	if (document.all)
		imgInit.filters.revealTrans.play();		
}
<!--按钮 start-->
for (var i=count;i>=1;i--){
	if (i!=1)
	{
		document.write('<div id="b'+i+'" class="'+button_off+'" onclick="change('+i+')" title="'+imgAlt[i]+'">'+i+'</div>');
	}
	else{
		document.write('<div id="b'+i+'" class="'+button_on+'" onclick="change('+i+')" title="'+imgAlt[i]+'">'+i+'</div>');
	}
}