function toogle() {
old_id = '';

        $$("#accordion img").each(function(element)
            {
                Event.observe(element, "mouseover", 
                    function(event){
						
                        id = event.target.id.split("_")[2];
                        if (old_id) {
							if (old_id != id) {
                            new Effect.BlindUp('accordion_content_' + old_id, {    duration: 0.4,    queue: 'end'});
							
							
								new Effect.BlindDown('accordion_content_' + id, {
									duration: 0.4,
									queue: 'end'
								});
								old_id = '';
							}
							 
                        }else{
							
                            new Effect.BlindDown('accordion_content_'+id,{duration:0.4, queue:'end' });
                      
                            
							old_id = id;
                            
                        }
                        
                    }
                )
            
            }
        )

    }