JavaScript版代码高亮

    i = i + this._ignore.length-1;
   //处理多行注释结束
   } else if (this.isStartWith(this._commentOff,codeArr,i)&&!quote_opened&&!slash_slash_comment_opened){
    if (slash_star_comment_opened) {
     slash_star_comment_opened = false;
     htmlTxt[htmlTxt.length] =  (this._commentOff +"</span>");
     i = i + this._commentOff.length-1;
    }
   //处理左标记
   } else if (this._dealTag&&!slash_slash_comment_opened && !slash_star_comment_opened&&!quote_opened&&codeArr[i] == "<") {
    htmlTxt[htmlTxt.length] = "<<span style='color:#808000;'>";
    tag_opened = true;
   //处理右标记
   } else if (this._dealTag&&tag_opened&&codeArr[i] == ">") {
    htmlTxt[htmlTxt.length] = "</span>>";
    tag_opened = false;
   //处理HTML转义符号
   } else if (codeArr[i] == "&") {
    htmlTxt[htmlTxt.length] = "&";
   } else {
    htmlTxt[htmlTxt.length] = codeArr[i].replace(/</g,"<");
   }
  }
  htmlTxt[htmlTxt.length] = ("</div>");

  return htmlTxt.join("");
 }

 this.isStartWith = function(str,code,index){
  if(typeof(str)!="undefined"&&str.length>0){
   for(var i=0;i<str.length;i++){
    if(this._caseSensitive){
     if(str.charAt(i)!=code[index+i]||(index+i>=code.length)){
      return false;
     }
    } else {
     if(str.charAt(i).toLowerCase()!=code[index+i].toLowerCase()||(index+i>=code.length)){
      return false;
     }
    }
   }
   return true;
  } else {
   return false;
  }
 }

 this.isKeyword = function(val){
  return this._keywords.contains(this._caseSensitive?val:val.toLowerCase());
 }

 this.isCommonObject = function(val){
  return this._commonObjects.contains(this._caseSensitive?val:val.toLowerCase());
 }

 this.isTag = function(val){
  return this._tags.contains(val.toLowerCase());
 }

}

function doHighlight(o, syntax){
 var htmltxt = "";

 if(o == null){
  alert("domNode is null!");
  return;
 }

 var _codetxt = "";

 if(typeof(o)=="object"){
  switch(o.tagName){