$(document).ready(function(){
    $("#concepts_sub1").hide();
	$("#concepts_sub5").hide();
	$("#concepts_sub6").hide();
	$("#concepts_sub7").hide();
	$("#concepts_sub8").hide();

	var conE = "closed";
    
    if(section == "3"){$("#concepts_sub3").show();$(".concepts_open3").css({"background-image":"url('../images/concepts_close3.jpg')"});var conC = "open";}
    else{$("#concepts_sub3").hide();var conC = "closed";}
    if(section == "4"){$("#concepts_sub4").show();$(".concepts_open4").css({"background-image":"url('../images/concepts_close4.jpg')"});var conD = "open";}
    else{$("#concepts_sub4").hide();var conD = "closed";}
    if(section == "2"){$("#concepts_sub2").show();$(".concepts_open2").css({"background-image":"url('../images/concepts_close2.jpg')"});var conB = "open";}
    else{$("#concepts_sub2").hide();var conB = "closed";}
    if(section == "5"){$("#concepts_sub5").show();$(".concepts_open5").css({"background-image":"url('../images/concepts_close5.jpg')"});var conD = "open";}
    else{$("#concepts_sub5").hide();var conD = "closed";}
    
    
    var conA = "closed";
    $(".concepts_open1").click(function() {
      if(conA == "closed"){
  $("#concepts_sub1").slideDown('slow');$(".concepts_open1").css({"background-image":"url('../images/concepts_close1.jpg')"});conA = "open";
  $("#concepts_sub2").slideUp('slow');$(".concepts_open2").css({"background-image":"url('../images/concepts_open2.jpg')"});conB = "closed";
  $("#concepts_sub3").slideUp('slow');$(".concepts_open3").css({"background-image":"url('../images/concepts_open3.jpg')"});conC = "closed";
  $("#concepts_sub4").slideUp('slow');$(".concepts_open4").css({"background-image":"url('../images/concepts_open4.jpg')"});conD = "closed";
  $("#concepts_sub5").slideUp('slow');$(".concepts_open5").css({"background-image":"url('../images/concepts_open5.jpg')"});conE = "closed";
    }
    else{
      $("#concepts_sub1").slideUp('slow');
      $(".concepts_open1").css({"background-image":"url('../images/concepts_open1.jpg')"});
      conA = "closed";
      }
      });
      
    $(".concepts_open2").click(function() {
      if(conB == "closed"){
  $("#concepts_sub2").slideDown('slow');$(".concepts_open2").css({"background-image":"url('../images/concepts_close2.jpg')"});conB = "open";
  $("#concepts_sub1").slideUp('slow');$(".concepts_open1").css({"background-image":"url('../images/concepts_open1.jpg')"});conA = "closed";
  $("#concepts_sub3").slideUp('slow');$(".concepts_open3").css({"background-image":"url('../images/concepts_open3.jpg')"});conC = "closed";
  $("#concepts_sub4").slideUp('slow');$(".concepts_open4").css({"background-image":"url('../images/concepts_open4.jpg')"});conD = "closed";
  $("#concepts_sub5").slideUp('slow');$(".concepts_open5").css({"background-image":"url('../images/concepts_open5.jpg')"});conE = "closed";
    }
    else{
      $("#concepts_sub2").slideUp('slow');
      $(".concepts_open2").css({"background-image":"url('../images/concepts_open2.jpg')"});
      conB = "closed";
      }
    });
      
    $(".concepts_open3").click(function() {
      if(conC == "closed"){
  $("#concepts_sub3").slideDown('slow');$(".concepts_open3").css({"background-image":"url('../images/concepts_close3.jpg')"});conC = "open";
  $("#concepts_sub2").slideUp('slow');$(".concepts_open2").css({"background-image":"url('../images/concepts_open2.jpg')"});conB = "closed";
  $("#concepts_sub1").slideUp('slow');$(".concepts_open1").css({"background-image":"url('../images/concepts_open1.jpg')"});conA = "closed";
  $("#concepts_sub4").slideUp('slow');$(".concepts_open4").css({"background-image":"url('../images/concepts_open4.jpg')"});conD = "closed";
  $("#concepts_sub5").slideUp('slow');$(".concepts_open5").css({"background-image":"url('../images/concepts_open5.jpg')"});conE = "closed";
    }
    else{
      $("#concepts_sub3").slideUp('slow');
      $(".concepts_open3").css({"background-image":"url('../images/concepts_open3.jpg')"});
      conC = "closed";
      }
      });
      
    $(".concepts_open4").click(function() {
      if(conD == "closed"){
  $("#concepts_sub4").slideDown('slow');$(".concepts_open4").css({"background-image":"url('../images/concepts_close4.jpg')"});conD = "open";
  $("#concepts_sub2").slideUp('slow');$(".concepts_open2").css({"background-image":"url('../images/concepts_open2.jpg')"});conB = "closed";
  $("#concepts_sub3").slideUp('slow');$(".concepts_open3").css({"background-image":"url('../images/concepts_open3.jpg')"});conC = "closed";
  $("#concepts_sub1").slideUp('slow');$(".concepts_open1").css({"background-image":"url('../images/concepts_open1.jpg')"});conA = "closed";
  $("#concepts_sub5").slideUp('slow');$(".concepts_open5").css({"background-image":"url('../images/concepts_open5.jpg')"});conE = "closed";
    }
    else{
      $("#concepts_sub4").slideUp('slow');
      $(".concepts_open4").css({"background-image":"url('../images/concepts_open4.jpg')"});
      conD = "closed";
      }
      });
	  
	 $(".concepts_open5").click(function() {
      if(conE == "closed"){
  $("#concepts_sub5").slideDown('slow');$(".concepts_open5").css({"background-image":"url('../images/concepts_close5.jpg')"});conE = "open";
  $("#concepts_sub4").slideUp('slow');$(".concepts_open4").css({"background-image":"url('../images/concepts_open4.jpg')"});conD = "closed";
  $("#concepts_sub2").slideUp('slow');$(".concepts_open2").css({"background-image":"url('../images/concepts_open2.jpg')"});conB = "closed";
  $("#concepts_sub3").slideUp('slow');$(".concepts_open3").css({"background-image":"url('../images/concepts_open3.jpg')"});conC = "closed";
  $("#concepts_sub1").slideUp('slow');$(".concepts_open1").css({"background-image":"url('../images/concepts_open1.jpg')"});conA = "closed";
    }
    else{
      $("#concepts_sub5").slideUp('slow');
      $(".concepts_open5").css({"background-image":"url('../images/concepts_open5.jpg')"});
      conE = "closed";
      }
      });
	  
	
	
	var conG = "closed";
	var conH = "closed";
	var conI = "closed";
    $(".concepts_open6").click(function() {
      if(conG == "closed"){
  $("#concepts_sub6").slideDown('slow');$(".concepts_open6").css({"background-image":"url('../images/concepts_closed6.jpg')"});conG = "open";
  $("#concepts_sub7").slideUp('slow');$(".concepts_open7").css({"background-image":"url('../images/concepts_open7.jpg')"});conH = "closed";
  $("#concepts_sub8").slideUp('slow');$(".concepts_open8").css({"background-image":"url('../images/concepts_open8.jpg')"});conI = "closed";
    }
    else{
      $("#concepts_sub6").slideUp('slow');
      $(".concepts_open6").css({"background-image":"url('../images/concepts_open6.jpg')"});
      conG = "closed";
      }
      });
      
    $(".concepts_open7").click(function() {
      if(conH == "closed"){
  $("#concepts_sub7").slideDown('slow');$(".concepts_open7").css({"background-image":"url('../images/concepts_closed7.jpg')"});conH = "open";
  $("#concepts_sub8").slideUp('slow');$(".concepts_open8").css({"background-image":"url('../images/concepts_open8.jpg')"});conG = "closed";
  $("#concepts_sub6").slideUp('slow');$(".concepts_open6").css({"background-image":"url('../images/concepts_open6.jpg')"});conI = "closed";
	}
    else{
      $("#concepts_sub7").slideUp('slow');
      $(".concepts_open7").css({"background-image":"url('../images/concepts_open7.jpg')"});
      conH = "closed";
      }
    });
      
    $(".concepts_open8").click(function() {
      if(conI == "closed"){
  $("#concepts_sub8").slideDown('slow');$(".concepts_open8").css({"background-image":"url('../images/concepts_closed8.jpg')"});conI = "open";
  $("#concepts_sub7").slideUp('slow');$(".concepts_open7").css({"background-image":"url('../images/concepts_open7.jpg')"});conH = "closed";
  $("#concepts_sub6").slideUp('slow');$(".concepts_open6").css({"background-image":"url('../images/concepts_open6.jpg')"});conG = "closed";
	}
    else{
      $("#concepts_sub8").slideUp('slow');
      $(".concepts_open8").css({"background-image":"url('../images/concepts_open8.jpg')"});
      conI = "closed";
      }
      });
	  

      $("#key_sub1").hide();
      $("#key_sub2").hide();
      $("#key_sub3").hide();
      $("#key_sub4").hide();
      $("#key_sub5").hide();
      $("#key_sub6").hide();
      $("#key_sub7").hide();
      $("#key_sub8").hide();
      $("#key_sub9").hide();
      $("#key_sub10").hide();
      $("#key_sub11").hide();
      
      var cnA = "closed";
      $(".key1").click(function() {
      if(cnA == "closed"){
  $("#key_sub1").slideDown('slow');cnA = "open";
  $("#key_sub2").slideUp('slow');cnB = "closed";
  $("#key_sub3").slideUp('slow');cnC = "closed";
  $("#key_sub4").slideUp('slow');cnD = "closed";
  $("#key_sub5").slideUp('slow');cnE = "closed";
  $("#key_sub6").slideUp('slow');cnF = "closed";
  $("#key_sub7").slideUp('slow');cnG = "closed";
  $("#key_sub8").slideUp('slow');cnH = "closed";
  $("#key_sub9").slideUp('slow');cnI = "closed";
  $("#key_sub10").slideUp('slow');cnJ = "closed";
  $("#key_sub11").slideUp('slow');cnK = "closed";
    }
    else{
      $("#key_sub1").slideUp('slow');
      cnA = "closed";
      }
      });
      
  var cnB = "closed";
      $(".key2").click(function() {
      if(cnB == "closed"){
  $("#key_sub1").slideUp('slow');cnA = "closed";
  $("#key_sub2").slideDown('slow');cnB = "open";
  $("#key_sub3").slideUp('slow');cnC = "closed";
  $("#key_sub4").slideUp('slow');cnD = "closed";
  $("#key_sub5").slideUp('slow');cnE = "closed";
  $("#key_sub6").slideUp('slow');cnF = "closed";
  $("#key_sub7").slideUp('slow');cnG = "closed";
  $("#key_sub8").slideUp('slow');cnH = "closed";
  $("#key_sub9").slideUp('slow');cnI = "closed";
  $("#key_sub10").slideUp('slow');cnJ = "closed";
  $("#key_sub11").slideUp('slow');cnK = "closed";
    }
    else{
      $("#key_sub2").slideUp('slow');
      cnB = "closed";
      }
      });
      
  var cnC = "closed";
      $(".key3").click(function() {
      if(cnC == "closed"){
  $("#key_sub1").slideUp('slow');cnA = "closed";
  $("#key_sub2").slideUp('slow');cnB = "closed";
  $("#key_sub3").slideDown('slow');cnC = "open";
  $("#key_sub4").slideUp('slow');cnD = "closed";
  $("#key_sub5").slideUp('slow');cnE = "closed";
  $("#key_sub6").slideUp('slow');cnF = "closed";
  $("#key_sub7").slideUp('slow');cnG = "closed";
  $("#key_sub8").slideUp('slow');cnH = "closed";
  $("#key_sub9").slideUp('slow');cnI = "closed";
  $("#key_sub10").slideUp('slow');cnJ = "closed";
  $("#key_sub11").slideUp('slow');cnK = "closed";
    }
    else{
      $("#key_sub3").slideUp('slow');
      cnC = "closed";
      }
      });
      
  var cnD = "closed";
      $(".key4").click(function() {
      if(cnD == "closed"){
  $("#key_sub1").slideUp('slow');cnA = "closed";
  $("#key_sub2").slideUp('slow');cnB = "closed";
  $("#key_sub3").slideUp('slow');cnC = "closed";
  $("#key_sub4").slideDown('slow');cnD = "open";
  $("#key_sub5").slideUp('slow');cnE = "closed";
  $("#key_sub6").slideUp('slow');cnF = "closed";
  $("#key_sub7").slideUp('slow');cnG = "closed";
  $("#key_sub8").slideUp('slow');cnH = "closed";
  $("#key_sub9").slideUp('slow');cnI = "closed";
  $("#key_sub10").slideUp('slow');cnJ = "closed";
  $("#key_sub11").slideUp('slow');cnK = "closed";
    }
    else{
      $("#key_sub4").slideUp('slow');
      cnD = "closed";
      }
      });
      
  var cnE = "closed";
      $(".key5").click(function() {
      if(cnE == "closed"){
  $("#key_sub1").slideUp('slow');cnA = "closed";
  $("#key_sub2").slideUp('slow');cnB = "closed";
  $("#key_sub3").slideUp('slow');cnC = "closed";
  $("#key_sub4").slideUp('slow');cnD = "closed";
  $("#key_sub5").slideDown('slow');cnE = "open";
  $("#key_sub6").slideUp('slow');cnF = "closed";
  $("#key_sub7").slideUp('slow');cnG = "closed";
  $("#key_sub8").slideUp('slow');cnH = "closed";
  $("#key_sub9").slideUp('slow');cnI = "closed";
  $("#key_sub10").slideUp('slow');cnJ = "closed";
  $("#key_sub11").slideUp('slow');cnK = "closed";
    }
    else{
      $("#key_sub5").slideUp('slow');
      cnE = "closed";
      }
      });
      
  var cnF = "closed";
      $(".key6").click(function() {
      if(cnF == "closed"){
  $("#key_sub1").slideUp('slow');cnA = "closed";
  $("#key_sub2").slideUp('slow');cnB = "closed";
  $("#key_sub3").slideUp('slow');cnC = "closed";
  $("#key_sub4").slideUp('slow');cnD = "closed";
  $("#key_sub5").slideUp('slow');cnE = "closed";
  $("#key_sub6").slideDown('slow');cnF = "open";
  $("#key_sub7").slideUp('slow');cnG = "closed";
  $("#key_sub8").slideUp('slow');cnH = "closed";
  $("#key_sub9").slideUp('slow');cnI = "closed";
  $("#key_sub10").slideUp('slow');cnJ = "closed";
  $("#key_sub11").slideUp('slow');cnK = "closed";
    }
    else{
      $("#key_sub6").slideUp('slow');
      cnF = "closed";
      }
      });

  var cnG = "closed";
      $(".key7").click(function() {
      if(cnG == "closed"){
  $("#key_sub1").slideUp('slow');cnA = "closed";
  $("#key_sub2").slideUp('slow');cnB = "closed";
  $("#key_sub3").slideUp('slow');cnC = "closed";
  $("#key_sub4").slideUp('slow');cnD = "closed";
  $("#key_sub5").slideUp('slow');cnE = "closed";
  $("#key_sub6").slideUp('slow');cnF = "closed";
  $("#key_sub7").slideDown('slow');cnG = "open";
  $("#key_sub8").slideUp('slow');cnH = "closed";
  $("#key_sub9").slideUp('slow');cnI = "closed";
  $("#key_sub10").slideUp('slow');cnJ = "closed";
  $("#key_sub11").slideUp('slow');cnK = "closed";
    }
    else{
      $("#key_sub7").slideUp('slow');
      cnG = "closed";
      }
      });
      
  var cnH = "closed";
      $(".key8").click(function() {
      if(cnH == "closed"){
  $("#key_sub1").slideUp('slow');cnA = "closed";
  $("#key_sub2").slideUp('slow');cnB = "closed";
  $("#key_sub3").slideUp('slow');cnC = "closed";
  $("#key_sub4").slideUp('slow');cnD = "closed";
  $("#key_sub5").slideUp('slow');cnE = "closed";
  $("#key_sub6").slideUp('slow');cnF = "closed";
  $("#key_sub7").slideUp('slow');cnG = "closed";
  $("#key_sub8").slideDown('slow');cnH = "open";
  $("#key_sub9").slideUp('slow');cnI = "closed";
  $("#key_sub10").slideUp('slow');cnJ = "closed";
  $("#key_sub11").slideUp('slow');cnK = "closed";
    }
    else{
      $("#key_sub8").slideUp('slow');
      cnH = "closed";
      }
      });
      
  var cnI = "closed";
      $(".key9").click(function() {
      if(cnI == "closed"){
  $("#key_sub1").slideUp('slow');cnA = "closed";
  $("#key_sub2").slideUp('slow');cnB = "closed";
  $("#key_sub3").slideUp('slow');cnC = "closed";
  $("#key_sub4").slideUp('slow');cnD = "closed";
  $("#key_sub5").slideUp('slow');cnE = "closed";
  $("#key_sub6").slideUp('slow');cnF = "closed";
  $("#key_sub7").slideUp('slow');cnG = "closed";
  $("#key_sub8").slideUp('slow');cnH = "closed";
  $("#key_sub9").slideDown('slow');cnI = "open";
  $("#key_sub10").slideUp('slow');cnJ = "closed";
  $("#key_sub11").slideUp('slow');cnK = "closed";
    }
    else{
      $("#key_sub9").slideUp('slow');
      cnI = "closed";
      }
      });
      
  var cnJ = "closed";
      $(".key10").click(function() {
      if(cnJ == "closed"){
  $("#key_sub1").slideUp('slow');cnA = "closed";
  $("#key_sub2").slideUp('slow');cnB = "closed";
  $("#key_sub3").slideUp('slow');cnC = "closed";
  $("#key_sub4").slideUp('slow');cnD = "closed";
  $("#key_sub5").slideUp('slow');cnE = "closed";
  $("#key_sub6").slideUp('slow');cnF = "closed";
  $("#key_sub7").slideUp('slow');cnG = "closed";
  $("#key_sub8").slideUp('slow');cnH = "closed";
  $("#key_sub9").slideUp('slow');cnI = "closed";
  $("#key_sub10").slideDown('slow');cnJ = "open";
  $("#key_sub11").slideUp('slow');cnK = "closed";
    }
    else{
      $("#key_sub10").slideUp('slow');
      cnJ = "closed";
      }
      });
      
  var cnK = "closed";
      $(".key11").click(function() {
      if(cnK == "closed"){
  $("#key_sub1").slideUp('slow');cnA = "closed";
  $("#key_sub2").slideUp('slow');cnB = "closed";
  $("#key_sub3").slideUp('slow');cnC = "closed";
  $("#key_sub4").slideUp('slow');cnD = "closed";
  $("#key_sub5").slideUp('slow');cnE = "closed";
  $("#key_sub6").slideUp('slow');cnF = "closed";
  $("#key_sub7").slideUp('slow');cnG = "closed";
  $("#key_sub8").slideUp('slow');cnH = "closed";
  $("#key_sub9").slideUp('slow');cnI = "closed";
  $("#key_sub10").slideUp('slow');cnJ = "closed";
  $("#key_sub11").slideDown('slow');cnK = "open";
    }
    else{
      $("#key_sub11").slideUp('slow');
      cnK = "closed";
      }
      });
      
      
});