function $(elto){
  return document.getElementById(elto);
}

function filtro (term, _id, cellNr){
	var suche = term.toLowerCase();
	var table = $(_id);
	var ele;
	for (var r = 1; r < table.rows.length; r++){
		ele = table.rows[r].cells[cellNr].innerHTML.replace(/<[^>]+>/g,"");
		if (ele.toLowerCase().indexOf(suche)>=0 )
			table.rows[r].style.display = '';
		else table.rows[r].style.display = 'none';
	}
}

function popup(url){
  ventana = window.open(url,'ampliar','status=yes,width=470,height=320, scrollbars=yes,resizable=no');
  ventana.focus();
}