function next_box(){

		var left = parseInt($('sliding_box').getStyle('left')== null ? 0: $('sliding_box').getStyle('left'));
		$('link_01').className = '';
		$('link_02').className ='underline_link';
		
		if( left==0){
	
			new Effect.Move('sliding_box', { x: -920, transition: Effect.Transitions.sinoidal, duration: 1.0 });	
			
		}
		
		
}

function back_box(){
		var left = parseInt($('sliding_box').getStyle('left')== null ? 0: $('sliding_box').getStyle('left'));
	
		$('link_01').className = 'underline_link';
		$('link_02').className = '';
		
		if( left == -920){
			new Effect.Move('sliding_box', { x: 920, transition: Effect.Transitions.sinoidal, duration: 1.0 });  
		}
		
		
}

function content_update(){	
			
			var h = $('ajax_content').getHeight();
			
			if($('ajax_content').getHeight()> $('sliding_content').getHeight()){
				new Effect.Morph('sliding_content', { style: 'height:'+$('ajax_content').getHeight()+'px;'  });
			}
			
			content_show();
			
			var left = parseInt($('sliding_content').getStyle('left')== null ? 0: $('sliding_content').getStyle('left'));
				
			if(left!= (-980))
				$('sliding_content').setStyle({'left':'-980px'});
			else
				new Effect.Move('sliding_content', { x: 980, transition: Effect.Transitions.sinoidal, duration: 1.0, queue:'end' });
						
			if( h < $('sliding_content').getHeight())
				new Effect.Morph('sliding_content', { style: 'height:'+h+'px;', queue:'end'});
}

function reset_content(){
		
		var left = parseInt($('sliding_content').getStyle('left')== null ? 0: $('sliding_content').getStyle('left'));
		
		if(left==0){
			$('content').update($('ajax_content').innerHTML);
			$('sliding_content').setStyle({'left':'-980px'});
			$('ajax_content').update();
		}
}

function content_show(){
			$('ajax_content').show();
}

function articalUpDown(){
	new Effect.SlideUp('content_box'); 
	
	window.setTimeout(function() {$('content').update($('ajax_content').innerHTML)}, 1000);
		
	new Effect.SlideDown('content_box',{queue:'end', delay: 0.2}); return false;
}