var zero = 0;
	var point = 218;
	p = 0;
	
	function prev(type){
		if(type == 'next_obj' && zero > p){	
			m = zero - point;
			zero = m;
			$('.slide').animate({left:m}, 1000);
		}
		
		if(type == 'prev_obj' && zero < 0){				
				m = zero + point;
				zero = m;
				$('.slide').animate({left:m}, 1000);					
		}
	}
	
	onload=function(){
		var w = $('.slide > .var_desc').length;
		s = (w - 1) * 218 + 196;
		$('.slide').width(s);
		p = s - 627;
		p -= p*2-5;
	}