open_forms = new Array();
function answer(id){

	if(!open_forms){
		open_forms = new Array();
	}
	
	if(open_forms[0] > 0){		
		document.getElementById('form_'+open_forms[0]).className = 'display_none';
	}
	if(document.getElementById('form').className == 'display_block'){
		document.getElementById('form').className = 'display_none';		
	}	
	open_forms[0] = '';
	open_forms[0] = id;	
	document.getElementById('form_'+id).className = 'display_block';	
}


function leave_comment(){
	for(var i=0; i<open_forms.length; i++){
		document.getElementById('form_'+open_forms[i]).className = 'display_none';
	}

	document.getElementById('form').className = 'display_block';
}