$(document).ready(function(){    
	function main_left_move(){
		$('div.slider_panel').animate({left:'-448'},10000,'swing').delay(500).animate({left:'0'},10000,'swing');			
	}	
	function auto_main_left_rolling(){		
		var main_left_rolling = setInterval(function(){			
			main_left_move();		
		},20000);
	}	
	main_left_move();
	auto_main_left_rolling();
			   
});