javastr="";

tmpstr=document.all.tupianmoban.innerHTML;
regex=new RegExp("\\_lianjie", "gi");
tmpstr=tmpstr.replace(regex,'index.asp?bianhao=770');
regex=new RegExp("\\_tupian", "gi");
tmpstr=tmpstr.replace(regex,'guan/upload/200804031522541135.jpg');
regex=new RegExp("\\_neirong", "gi");
tmpstr=tmpstr.replace(regex,'著名学者杨义先生受聘深圳 ...');
javastr+=tmpstr;

document.all.xinwen.innerHTML = javastr