js加入收藏夹与增加书签代码

function externalLinks() {
if (!document.getElementsByTagName) return;
var anchors = document.getElementsByTagName("a");
for (var i=0; i<anchors.length; i++) {
var anchor = anchors[i];
if (anchor.getAttribute("href") &&
anchor.getAttribute("rel") == "external")
anchor.target = "_blank";
}
}
window.onload = externalLinks;
function selectTag(showContent,selfObj){
 var tag = document.getElementById("tags").getElementsByTagName("a");
 var taglength = tag.length;
 for(i=0; i<taglength; i++){
  tag[i].className = "";
 }
 selfObj.className = "focu";
 for(i=0; j=document.getElementById("baidu"+i); i++){
  j.style.display = "none";
 }
 document.getElementById(showContent).style.display = "block";
}
function addBookmark(title,url) {
    if (window.sidebar) {
        window.sidebar.addPanel(title, url,"");
    } else if( document.all ) {
        window.external.AddFavorite( url, title);
    } else if( window.opera && window.print ) {
        return true;
    }
}