//导航切换
function jeeNav(o,n){
	 o.className="selected";
	 var t;
	 var id;
	 var s;
	 for(var i=1;i<=n;i++){
	   id ="nav"+i;
	   t = document.getElementById(id);
	   s = document.getElementById("sub"+i);
	   if(id != o.id){
	   	 t.className="hide";
	   	 s.style.display = "none";
	   }
	   else{
			s.style.display = "block";
	   }
	 }
}

//投票验证
function check_votes(allowCount) {
var voteItems=document.getElementsByName('itemIds');
  var count = 0;
  for(var i=0;i<voteItems.length;i++)
  {
   if(voteItems[i].checked){
     count++;
   }
  }
  if(count==allowCount&&allowCount>1){
   for(var i=0;i<voteItems.length;i++){
     if(!voteItems[i].checked){
       voteItems[i].disabled = true;
     }
   }
   return true;
  }
  else{
    for(var i=0;i<voteItems.length;i++){
       voteItems[i].disabled = false;
    }
  }
  if(count==0){
	  alert("对不起，请至少选择一个投票项！");
	  return false;0
  }
  return true;
}


//add 2011.08.26
$(function(){
    (function(){
        var curr = 0;
        $("#jsNav .trigger").each(function(i){
            $(this).click(function(){
                curr = i;
                $("#js a").eq(i).fadeIn("slow").siblings("a").hide();
                $(this).siblings(".trigger").removeClass("imgSelected").end

().addClass("imgSelected");
                return false;
            });
        });
        
        var pg = function(flag){
            //flag:true表示前翻， false表示后翻
            if (flag) {
                if (curr == 0) {
                    todo = 2;
                } else {
                    todo = (curr - 1) % 6;
                }
            } else {
                todo = (curr + 1) % 6;
            }
            $("#jsNav .trigger").eq(todo).click();
        };
        
        //前翻
        $("#prev").click(function(){
            pg(true);
            return false;
        });
        
        //后翻
        $("#next").click(function(){
            pg(false);
            return false;
        });
        
        //自动翻
        var timer = setInterval(function(){
            todo = (curr + 1) % 6;
            $("#jsNav .trigger").eq(todo).click();
        },4000);
        
        //鼠标悬停在触发器上时停止自动翻
        $("#jsNav a").hover(function(){
                clearInterval(timer);
            },
            function(){
                timer = setInterval(function(){
                    todo = (curr + 1) % 6;
                    $("#jsNav .trigger").eq(todo).click();
                },1500);            
            }
        );
    })();
});