gistfile1.txt

 jQuery.ajax({
		url: '/wp-admin/admin-ajax.php',
  		type: 'GET',//POST, JSON, XML
  		dataType: 'html',
  		data: ({
  		  action: 'MY_AJAX_FUNCTION',
  		 	state: state,
  		}),
  		success: function(data){
  		  if (data){
    			
    		  }
    		  else
    		  {

    		  }
  		}
});

//Put this in function.php
wp_localize_script( 'ajax-request', 'MyAjax', array( 'ajaxurl' => admin_url( 'admin-ajax.php' ) ) );  

function MY_AJAX_FUNCTION(){
   //doing something here
  die($results);
}
add_action('wp_ajax_MY_AJAX_FUNCTION', 'MY_AJAX_FUNCTION');
add_action('wp_ajax_nopriv_MY_AJAX_FUNCTION', 'MY_AJAX_FUNCTION');