怎样强制让topic-content的链接在新标签打开

loadScript(WebsitePath + "/static/editor/ueditor.parse.min.js", function(){
	//强制所有链接在新窗口中打开
	var AllPosts = document.getElementsByClassName("comment-content");
	PostContentLists = {};//Global
	AllPosts[AllPosts.length]=document.getElementsByClassName("topic-content")[0];
	if(document.getElementsByClassName("topic-content").length>0){
		PostContentLists[document.getElementsByClassName("topic-content")[0].childNodes[1].id] = trim3(document.getElementsByClassName("topic-content")[0].childNodes[1].innerHTML);
	}
	//console.log(PostContentLists);
	for (var j=0; j<AllPosts.length; j++) {
		PostContentLists[document.getElementsByClassName("comment-content")[j].childNodes[5].id] = trim3(document.getElementsByClassName("comment-content")[j].childNodes[5].innerHTML);
		//console.log(PostContentLists);
		var AllLinks = AllPosts[j].getElementsByTagName("a");
		for(var i=0; i<AllLinks.length; i++)
		{
			var a = AllLinks[i];
			//console.log(a);
			if(a.host != location.host){
				a.target="_blank";
			}
		};
	};

这个是让评论的链接在新标签打开，该怎么修改呢