function show_comments(id){
	var rows = document.getElementById('comments_'+id).getElementsByTagName('tbody')[0].getElementsByTagName('tr');

	for(i=0; i<rows.length; i++){
		rows[i].style.display="block";
		if(rows[i].id=="preview"){
			rows[i].style.display="none";
		}
	}
	document.getElementById('disp_'+id).style.display="none";
}

function show_form(id){
	document.getElementById('form_'+id).style.display="block";
        document.getElementById('formtrigger_'+id).style.display="none";
}