function changePics(){
  var infos=centerimg.getElementsByTagName("td");
 
  var imgUrls=new Array(3);
  var imgLinks=new Array(3);
  var imgTexts=new Array(3);
  for(var i=0;i<infos.length/3;i++){
    imgUrls[i]=infos[3*i].innerHTML;
	 
	imgTexts[i]=infos[3*i+1].innerHTML;
	imgLinks[i]=infos[3*i+2].innerHTML;
  }
  var focus_width=235;
  var focus_height=170;
  var text_height=22;
  var swf_height = focus_height+text_height;
 
  var pics=imgUrls.join("|");
  var links=imgLinks.join("|");
  var texts=imgTexts.join("|");
  var imgInnerText='<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
	imgInnerText=imgInnerText+'codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" ';
	imgInnerText=imgInnerText+'width="'+ focus_width +'" ';
	imgInnerText=imgInnerText+'height="'+ swf_height +'">';
	imgInnerText=imgInnerText+'<param name="allowScriptAccess" value="sameDomain">';
	imgInnerText=imgInnerText+'<param name="movie" value="http://www.qz.cn/long/images/focus.swf">';
	imgInnerText=imgInnerText+'<param name="quality" value="high">';
	imgInnerText=imgInnerText+'<param name="bgcolor" value="#ffffff">';
	imgInnerText=imgInnerText+'<param name="menu" value="false">';
	imgInnerText=imgInnerText+'<param name=wmode value="opaque">';
	imgInnerText=imgInnerText+'<param name="FlashVars" ';
	imgInnerText=imgInnerText+'value="pics='+pics;
	imgInnerText=imgInnerText+'&links='+links;
	imgInnerText=imgInnerText+'&texts='+texts;
	imgInnerText=imgInnerText+'&borderwidth='+focus_width;
	imgInnerText=imgInnerText+'&borderheight='+focus_height;
	imgInnerText=imgInnerText+'&textheight='+text_height+'">';
	imgInnerText=imgInnerText+'<embed src="http://www.qz.cn/long/images/focus.swf" ';
	imgInnerText=imgInnerText+'wmode="opaque" ';
	imgInnerText=imgInnerText+'FlashVars="pics='+pics;
	imgInnerText=imgInnerText+'&links='+links;
	imgInnerText=imgInnerText+'&texts='+texts;
	imgInnerText=imgInnerText+'&borderwidth='+focus_width;
	imgInnerText=imgInnerText+'&borderheight='+focus_height;
	imgInnerText=imgInnerText+'&textheight='+text_height+'" ';
	imgInnerText=imgInnerText+'menu="false" ';
	imgInnerText=imgInnerText+'bgcolor="#ffffff" ';
	imgInnerText=imgInnerText+'quality="high" ';
	imgInnerText=imgInnerText+'width="'+ focus_width +'" ';
	imgInnerText=imgInnerText+'height="'+ focus_height +'" ';
	imgInnerText=imgInnerText+'allowScriptAccess="sameDomain" ';
	imgInnerText=imgInnerText+'type="application/x-shockwave-flash" ';
	imgInnerText=imgInnerText+'pluginspage="http://www.macromedia.com/go/getflashplayer" />';
	imgInnerText=imgInnerText+'</object>';
  centerimg.innerHTML=imgInnerText;
}