var vowel=document.getElementById('ai');
 
    vowel.onclick=function(){

         
      var disp=document.getElementById('count'); 
      disp.value=vowel.value;
     }

         var vowele=document.getElementById('ee');
 
    vowele.onclick=function(){

       
      var disp=document.getElementById('count'); 
      disp.value=vowele.value;
     }
     
             var voweli=document.getElementById('ie');
 
    voweli.onclick=function(){

        
      var disp=document.getElementById('count'); 
      disp.value=voweli.value;
     }
     
           var vowelo=document.getElementById('oa');
 
    vowelo.onclick=function(){

        
      var disp=document.getElementById('count'); 
      disp.value=vowelo.value;
     }
     
            var voweloi=document.getElementById('oi');
 
    voweloi.onclick=function(){

        
      var disp=document.getElementById('count'); 
      disp.value=voweloi.value;
     }