//读写cookie函数
function GetCookie(c_name)
{
if (document.cookie.length > 0)
{
c_start = document.cookie.indexOf(c_name + "=")
if (c_start != -1)
{
c_start = c_start + c_name.length + 1;
c_end = document.cookie.indexOf(";",c_start);
if (c_end == -1)
{
c_end = document.cookie.length;
}
return unescape(document.cookie.substring(c_start,c_end));
}
}
return null
}
function SetCookie(c_name,value,expiredays)
{
var exdate = new Date();
exdate.setDate(exdate.getDate() + expiredays);
document.cookie = c_name + "=" +escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString()); //使设置的有效时间正确。增加toGMTString()
}
function postDigg(ac, aid)
{
var saveid = GetCookie('diggid');
if(saveid != null)
{
var saveids = saveid.split(',');
var hasid = false;
saveid = '';
j = 1;
for(i=saveids.length-1;i>=0;i--)
{
if(saveids[i]==aid && hasid) continue;
else {
if(saveids[i]==aid && !hasid) hasid = true;
saveid += (saveid=='' ? saveids[i] : ','+saveids[i]);
j++;
if(j==20 && hasid) break;
if(j==19 && !hasid) break;
}
}
if(hasid) { alert("您已经顶过该帖，请不要重复顶帖 ！"); return false; }
else saveid += ','+aid;
SetCookie('diggid',saveid,1);
} else {
SetCookie('diggid',aid,1);
}
location.href='digg_frame.php?action='+ac+'&id='+aid;
}