function print_r(data, obj, tab){
if(tab == undefined) tab = '';
if(obj == undefined) obj = '[object]';
var text = '';

for(var i in data){
if(data[i] != obj){
text += tab + i+" : "+data[i]+"<br>";
}else{
text += tab + i+" { <br>";
text += print_r(data[i], obj, tab+'   ');
text += tab + "} <br>";
}}
return text;}