function getCookieVal(offset){ 
    var endstr = document.cookie.indexOf (";", offset); 
    if (endstr == -1) endstr = document.cookie.length; 
        return unescape(document.cookie.substring(offset, endstr)); 
} 
function getCookie(name){
    var arg = name + "="; 
    var alen = arg.length; 
    var clen = document.cookie.length; 
    var i = 0; 
    while (i < clen) { 
        var j = i + alen; 
        if (document.cookie.substring(i, j) == arg) return getCookieVal (j); 
        i = document.cookie.indexOf(" ", i) + 1; 
        if (i == 0) break; 
    } 
    return null; 
} 
function setCookie(name,value){ 
    var exp = new Date(); 
    exp.setTime (exp.getTime()+3600000000); 
    document.cookie = name + "=" + value + "; expires=" + exp.toGMTString(); 
}
function glog(evt){
    evt=evt?evt:window.event;
    var srcElem=(evt.target)?evt.target:evt.srcElement;
    try{
        while(srcElem.parentNode&&srcElem!=srcElem.parentNode){
            if(srcElem.tagName&&srcElem.tagName.toUpperCase()=="A"){
                linkname=srcElem.innerHTML;
                address=srcElem.href+"_t351.net_";
                wlink=linkname+"+"+address;    
                old_info=getCookie("history_info");
                var insert=true;
                if(old_info==null){//判断cookie是否为空
                    insert=true;
                }
                else{    
                    var old_link=old_info.split("_t351.net_");
                    for(var j=0;j<=5;j++){
                        if(old_link[j].indexOf(linkname)!=-1)
                            insert=false;
                            if(old_link[j]=="null")
                            break;
                    }
                }
                if(insert){
                    wlink+=getCookie("history_info");
                    setCookie("history_info",wlink);
                    history_show().reload();
                    break;
                }
            }
            srcElem = srcElem.parentNode;
        }
    }
    catch(e){}
    return true;
}
document.onclick=glog;
function history_show(){            
    var history_info=getCookie("history_info");
    var content="";    
    if(history_info!=null){
        history_arg=history_info.split("_t351.net_");
        var i;
        for(i=0;i<=5;i++){
            if(history_arg[i]!="null"){
                var wlink=history_arg[i].split("+");
                content+=("<li>"+"<a href='"+wlink[1]+"'>"+wlink[0]+"</a></li>");
            }
            document.getElementById("history").innerHTML="<ol>您最近查看的内容: "+content+"</ol>";
        }
    }
    else{
        document.getElementById("history").innerHTML="";
    }
}