// JavaScript Document
function encode(s){
  return s.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/([\\\.\*\[\]\(\)\$\^])/g,"\\$1");
}
function decode(s){
  return s.replace(/\\([\\\.\*\[\]\(\)\$\^])/g,"$1").replace(/&gt;/g,">").replace(/&lt;/g,"<").replace(/&amp;/g,"&");
}
function highlight(s,id){
  if (s.length==0){
 //   alert('搜索关键词未填写！');
    return false;
  }
  s=encode(s);
  var obj=document.getElementById("NewsContent");
  var t = obj.innerHTML.replace(/<span\s+class=.?highlight.?>([^<>]*)<\/span>/gi,"$1");
  obj.innerHTML=t;
  var cnt=loopSearch(s,obj);
  t=obj.innerHTML
  var r=/{searchHL}(({(?!\/searchHL})|[^{])*){\/searchHL}/g
  t=t.replace(r,"<span class='search'><a href='product.asp?Productid="+id+"' title=$1>$1</a></span>");
  obj.innerHTML=t;
//  alert("搜索到关键词"+cnt+"处")
}
function loopSearch(s,obj){
  var cnt=0;
  if (obj.nodeType==3){
    cnt=replace(s,obj);
    return cnt;
  }
  for (var i=0,c;c=obj.childNodes[i];i++){
    if (!c.className||c.className!="highlight")
      cnt+=loopSearch(s,c);
  }
  return cnt;
}
function replace(s,dest){
  var r=new RegExp(s,"g");
  var tm=null;
  var t=dest.nodeValue;
  var cnt=0;
  if (tm=t.match(r)){
    cnt=tm.length;
    t=t.replace(r,"{searchHL}"+decode(s)+"{/searchHL}")
    dest.nodeValue=t;
  }
  return cnt;
}