function Slideid() {
    var url = location.search;
    if (url.length > 1) {
        url = url.substring(1);
        var Url__ = url.split("&");
        var oid = "";
        for (var i = 0; i < Url__.length; i++) {
            var Url___ = Url__[i].split("=");
            if (Url___.length > 1) {
                if (Url___[0].toLowerCase() == "oid") {
                    oid = Url___[1];
                }
            }
        }
        if (oid < 0 || oid == "") {
            oid = 0;
        }
    } else {
        oid = 0;
    }
    return oid;
}
$.fn.extend({     
   TrunAd:function(options){
	var auto=null;
	var obj=$(this);
	counta=$("a",obj).size();
	if(p_num == null || p_num == ""){
		var na = 0;	
	}else{
		var na = p_num;		
	}
	//var na = (p_num == null) ? 0 : p_num;
	var settings={timer:6000,menu:"#play_text"};
	options = options || {};
        $.extend(settings, options);
//	var ulcontent="<ul>";
//	for(i=1;i<=count;i++){ulcontent=ulcontent+"<li>"+i+"</li>";}
//	ulcontent=ulcontent+"</ul>";
//	$(settings.menu).html(ulcontent);
    //$("a:not(:first-child)",this).hide();
	$("a",this).hide();
	$(this).children("a").eq(na).show()
	$(settings.menu+" li").eq(na).css({"background":"#999"});
	
$(settings.menu+" li").mouseover(function() {
	ia = $(this).attr("value")-1;
	na=ia;
	if (na >= counta) return;
	$("a",obj).filter(":visible").fadeOut(300,function(){$(this).parent().children().eq(na).fadeIn(700);});
	$(this).css({ "background": "#666" }).siblings().css({ "background":"#fff" });
	clearInterval(auto);
}).mouseout(function () {
    auto = setInterval(showAuto, settings.timer);
});

auto = setInterval(showAuto, settings.timer);
obj.hover(function(){clearInterval(auto)}, function(){auto = setInterval(showAuto, settings.timer);});
function showAuto(){
	na = na >= (counta - 1) ? 0 : ++na;
	//$(settings.menu + " li").eq(na).trigger('mouseover');
	if (na >= counta) return;
	$("a", obj).filter(":visible").fadeOut(300, function () { $(this).parent().children().eq(na).fadeIn(700); });
	$(settings.menu + " li").eq(na).css({"background":"#666"}).siblings().css({"background":"#fff"});
	}
}
});
/*执行*/
var p_num = Slideid();
$('#play_list').TrunAd(p_num);
$("#0300").addClass("on"); //头部变亮