$(document).ready(function(){
			
		function last_msg_funtion() 
		{ 
		   
           var ID=$(".message_box:last").attr("id");
			$('div#last_msg_loader').html('<img src="http://profilecrib.com/images/ajax-loader2.gif">');
			$.post("../search/load_second.php?action=get&last_msg_id="+ID,
			
			

	
function(data){
if (data != "") {
$(".message_box:last").after(data); 
}
$('div#last_msg_loader').empty();
});
}; 

$(window).scroll(function(){
if ($(window).scrollTop() == $(document).height() - $(window).height()){
last_msg_funtion();
}
}); 
});