function click_change(obj,n)
{ 
  var spotarray=new Array();
  var add_spot=eval("document.getElementById('add_"+obj+"')");
  var del_spot=eval("document.getElementById('del_"+obj+"')");
  var myspot=getCookie('_myspot');
  if(myspot)
	{
	spotarray=myspot.split('|');
	}
if(spotarray.length<300)
	{
 if(n==1)
	{
     add_spot.style.display="none";
	 del_spot.style.display='';
	 Push_in(obj,1);
    }
  if(n==0)
	{ 
      add_spot.style.display='';
	  del_spot.style.display="none";
	  Push_in(obj,0);
     }

/* no. of spot */
if(getCookie('_myspot'))
	{
	spotarray=getCookie('_myspot').split('|');
    document.getElementById('myspot').innerHTML="("+spotarray.length+")";
	}
else 
   document.getElementById('myspot').innerHTML="(0)";
/* no. of spot */

	}
	else
	{
		alert("你已儲存多於 300 個景點");
	}
}

//判斷景點是否存在於我的景點
function getspot(obj)
{
	var spot_str=obj;
	if(spot_str)
		{
		 spot_array=spot_str.split("|");
		 for(var a=0;a<spot_array.length;a++)
		  {
			   var add_spot=eval("document.getElementById('add_"+spot_array[a]+"')");
			   var del_spot=eval("document.getElementById('del_"+spot_array[a]+"')");
			   if(add_spot)
			   {   
					add_spot.style.display="none";
					del_spot.style.display='';
			   }
		  }
		}
}