function show(inputData) {
 var objID=document.getElementById( "layer_" + inputData );
 var buttonID=document.getElementById( "category_" + inputData );
 if(objID.className=='close') {
 objID.style.display='block';
 objID.className='open';
 }else{
 objID.style.display='none';
 objID.className='close';
 }
 }