实现一个功能~请高手帮忙

Question

String.prototype.replaceString = stringReplaceAll;  function stringReplaceAll(AFindText,ARepText){  
 var raRegExp = new RegExp(AFindText,"i");  
 //i 就只匹配一个 ig就匹配所有
 return this.replace(raRegExp,ARepText);  
}  function   getUnique(someArray){   
  tempArray=someArray.slice(0);//复制数组到临时数组   
  for(var   i=0;i<tempArray.length;i++){   
  for(var   j=i+1;j<tempArray.length;){   
  if(tempArray[j]==tempArray[i])   
      //后面的元素若和待比较的相同，则删除并计数；   
      //删除后，后面的元素会自动提前，所以指针j不移动   
  {tempArray.splice(j,1);}   
  else{j++;}   
  //不同，则指针移动   
  }   
  }   
  return   tempArray   
  }   
var arr=new Array("钢龙","存档","攻略","升级路线","霸龙","老山龙","炎妃龙","霞龙","岩龙","红莲石","boss","mhp2g","雷光浸出物","幻之蝶","轰龙","爬虫的头","上龙骨","一角龙","红鹫石","光水晶","白化的生肉片","电龙","大剑","太刀","片手","双刀","大锤","笛","长枪","铳炮","轻弩","重弩","弓","雪山","密林","沙漠","沼地","森丘","火山","塔","砦","街","修雷得城","决战场","大斗技场","树海","旧火山");arr=getUnique(arr);var g1="http://monsterhunter2.cn/search/?domains=monsterhunter2.cn&q=";
var g2="&sitesearch=monsterhunter2.cn&client=pub-1527134266980365&forid=1&ie=GB2312&oe=GB2312&safe=active&flav=0000&sig=havUBRHOwuajwdX9&cof=GALT%3A%23008000%3BGL%3A1%3BDIV%3A%23FFFFFF%3BVLC%3A663399%3BAH%3Acenter%3BBGC%3AFFFFFF%3BLBGC%3AFFFFFF%3BALC%3A0000FF%3BLC%3A0000FF%3BT%3A000000%3BGFNT%3A0000FF%3BGIMP%3A0000FF%3BLH%3A50%3BLW%3A237%3BL%3Ahttp%3A%2F%2Fmonsterhunter2.cn%2Fimages%2Fmhp2_logo.jpg%3BS%3Ahttp%3A%2F%2Fmonsterhunter2.cn%3BFORID%3A11&hl=zh-CN";for(i=0;i<arr.length;i++){
var str= document.getElementById("content").innerHTML;
c=arr[i];var abcd=str.replaceString(c,('<a href="'+g1+c+g2+'" target="new">'+c+'</a>'));
document.getElementById("content").innerHTML=abcd;
}