function set_product_image (nr, totall_count) {
	
	for (var i=1; i<=totall_count; i++) {
		
	 	var image_id = "zp"+i;
		var image_content = document.getElementById(image_id);
		
		if (image_content) {
			
			// Load new image content
			if (i == nr) {
			
				image_content.style.display = "block";
			
			} else {
			
				image_content.style.display = "none";
			}
		}
	}
}