function show1(divId){
  for(i=1;i<22;i++){
   var divIdName="did"+i;
   if(document.getElementById(divIdName)){
   	if(divIdName == divId){
     		document.getElementById(divIdName).style.display='block';
   	}
   	else{
    	document.getElementById(divIdName).style.display='none';
   	}
    }    
  }
}
function show2(divIds){
  for(i=1;i<10;i++){
   var divIdNames="dids"+i;
   if(document.getElementById(divIdNames)){
   	if(divIdNames == divIds){
     		document.getElementById(divIdNames).style.display='block';
   	}
   	else{
    	document.getElementById(divIdNames).style.display='none';
   	}
    }    
  }
}