function df(v) {
    var itemID = document.getElementById("item_id").value;
    location.href="/need_login.php?from=df&itemID="+itemID;
}
var h_765=0;
function hidden_pre_box(h){
    var o = document.getElementById('td_pic');
    if(h==-1){
        h_765 = o.height;
        
    }
    if(o.height<10){
        document.getElementById('item-preplay-box').style.display = 'none';
        document.getElementById('item-player-box').style.display = 'block';
    }else{
        o.height = parseInt(o.height - h_765/20);
        var s = "hidden_pre_box(0)";
        setTimeout(s,60);
    }
}
function ready_to_play(){
    var sec_left_num = document.getElementById('sec-left');
    var n = parseInt(sec_left_num.innerHTML);
    if(n>1){
        sec_left_num.innerHTML = --n;
        setTimeout("ready_to_play()",1000);
    }else{
        document.getElementById('item-preplay-box-desc').innerHTML='';
        hidden_pre_box(-1);
    }
}

function x_get_preplay_content() {
    //
	zajax_do_call("/util/zajax/player_func.php",
	              "get_preplay_content",
                  x_get_preplay_content.arguments);
}
function do_get_preplay_content_cb(r) {
    //
    document.getElementById("item-preplay-box-main").innerHTML=r;
    setTimeout("ready_to_play()",1000);
}
function get_preplay_content(itemID) {
	x_get_preplay_content(itemID, do_get_preplay_content_cb);
}