scraping a website using ajax

var url='http://www.festivalsandeventsontario.ca/wp/wp-admin/admin-ajax.php';
var query_args=[];
var data={
query_args:[
{'cat':42,'posts_per_page':42,'order':'ASC','meta_key':'feo_member','meta_value':'True','filter':'filter_where'}
],
action:"retrieve_posts",
page_number: 4,
filter: 'filter_where',
user_function: 'the_event_item'
};
$.ajax({
url:url,
type: 'POST',
data: data,
//dataType:'json',
success: function(result){
//var t=JSON.stringify(result);
//$('#tab1').html(JSON.parse(t));
alert(JSON.stringify(result));
},
error: function(e){
//
alert(JSON.stringify(e));
}

});