var intCantItems = 0;
var maxItems = 10;

function addFiles() { 
	if (intCantItems < (maxItems - 1)) {
		 nDiv = document.createElement('div');
	     nDiv.className = 'archivo';
		 nDiv.id = 'file' + (++intCantItems);
	     nCampo = document.createElement('input');
	     nCampo.name = 'fileNames[]';
	     nCampo.type = 'file';
		 nCampo.className='table_std';
		 a = document.createElement('a');
         a.name = nDiv.id;
         a.href = '#';
         a.onclick = delFiles;
	     a.innerHTML = 'Delete';
		 nDiv.appendChild(nCampo);
         nDiv.appendChild(a);
         container = document.getElementById('Atachment');
         container.appendChild(nDiv);
         
    if (intCantItems == (maxItems - 1)) {
      document.getElementById('addfile').style.display = 'none';
    }
	}			     
}

function evento (evt) { 
	   return (!evt) ? event : evt;
}	
	
function delFiles (evt){
	   evt = evento(evt);
	   nCampo = rObj(evt);
	   div = document.getElementById(nCampo.name);
	   div.parentNode.removeChild(div);
     
    --intCantItems;
    document.getElementById('addfile').style.display = '';
    
    return false;
}

function rObj (evt) { 
         return evt.srcElement ?  evt.srcElement : evt.target;
}