function show_gallery_photo(){
	var items_count = $( '.slide_gallery .slide_gallery-item' ).size();
	if( items_count > 0 ){
		var el = $( '.slide_gallery .visible' );														
		var next_element = el.next();																	
		if( next_element.attr('class') == 'slide_gallery-item' ){
			el.fadeOut(2000, function(){
				$(this).removeClass('visible');
			});
			next_element.fadeIn(2000,function(){
				$(this).addClass('visible');
			});
		} else {																							
			next_element = $( '.slide_gallery .slide_gallery-item:first' );
			el.fadeOut(2000, function(){
				$(this).removeClass('visible');
			});
			next_element.fadeIn(2000,function(){
				$(this).addClass('visible');
			});
		}																				
	}
}
$(function(){								
	 setInterval(function() { 
		show_gallery_photo();
	}, 7000); 
	$( '.slide_gallery .slide_gallery-item:first' ).addClass('visible');
})