function digg(cid,d,mid){
	var saveid = getcookie('diggid');
	if (saveid == cid) {
		alert("���ѿ����۹�");
	} else{
		$.get("index.php?m=content&c=index&a=digg",
			  { modelid:mid, id: cid, digg:d},
			  function (r){
			    if(d==1){
			    	$('#up').html(r);
			    } else {
			    	$('#down').html(r);
			    }
			  });
		setcookie('diggid',cid,1);
	}
}
 
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()); //ʹ���õ���чʱ����ȷ������togmtstring()
}