$(function (){   
      $('#submit_comment').click(function (){    
		$.post('/add_comment.php',{tcomment:$('#tcomment').val(),rel_id:$('#comment_rel_id').val(),username:$('#comment_username').val()}, function (data){$("#comment_show").before(data);});  
	  });    
        
});  


function get_comment(rss_id){
	$.post('/get_comment.php',{id:rss_id}, function (data){$("#comment_show").append(data);});  

}