//代替未加载成功的图片
var rErrGroupImgSrc = "http://js.itiexue.net/Group/Images/placeholderphoto.gif";
var rErrUserImgSrc = "http://js.itiexue.net/Group/images/ms_userLogo.gif";
function GroupLoadErrImg(imgobj)//图片加载错误时加载默认图片
{   
    imgobj.onerror=null;
    imgobj.src = rErrGroupImgSrc;
}
        
function UserLoadErrImg(imgobj)//图片加载错误时加载默认图片
{
    imgobj.onerror=null;
    imgobj.src = rErrUserImgSrc;
}