[qwe88]

Постави, но не работает

<input type="checkbox" id="snyatlen1" />

  <div class="vib1" id="men1"></div>
  <div class="vib5" id="men5"></div>
  <script>
    var che = document.getElementById("snyatlen1");
    var che2 = document.getElementById("men1");
	var che3 = document.getElementById("men5");

    che.onchange = function() {
      che2.className = this.checked ? "vib2" : "vib1";
    
	
	if(che2.className=="vib1"{
		che3.className="vib9";
	}
	else if(che2.className=="vib2"{
		che3.className="vib77";
	}
	};
   </script>