$(document).ready(function(){
    init();
    init_info()
  });
function init(){

  $("#writerpic_slider").slider({
      value: $("#writerpic").val(),
			range: "min",
			value: 1,
			min: 1,
			max: 8,
			slide: function(event, ui) {
				$("#writerpic").val(ui.value);
        $("[id^=people]").css("display","none");
        $("#people" + $("#writerpic").val()).css("display","");
			}
		});

  $("[id^=people]").css("display","none");
  $("#people" + $("#writerpic").val()).css("display","");
}

function init_info(){
  $.getJSON("../../data/getuserlogin.php",
        function(json){
          if (json.mid=="") {}
          else {init_info2(json.mid);}
        });  
}
function init_info2(mid){
    $.getJSON("../../data/getjson_member.php",
        function(json){
          $("#writername").val(json.username);
          $("#writeremail").val(json.useremail);
          $("#writermid").val(json.mid);
        }); 
}
function checkfield(){
  var msg="";
  if ($("#writername").val()=="") {msg += (msg=="") ? "" : "\n";msg +="  姓名";}
  if ($("#writeremail").val()=="") {msg += (msg=="") ? "" : "\n";msg +="  EMAIL";}
  if ($("#subject").val()=="") {msg += (msg=="") ? "" : "\n";msg +="  主題";}
  if ($("#content").val()=="") {msg += (msg=="") ? "" : "\n";msg +="  內容";}

  if (msg!=""){alert("請填寫下列欄位:\n"+msg); return false;}
  else{return true;}
}
function submit_form(){
  if (checkfield()==false){return false;}
  else {return true;}
}