Load dynamic content for a caroussel

plugin.js

$("#caroussel-arrow ul li button").click(function(){
	var clicked_arrow = $(this).attr('id');
	var current_categ = $("#caroussel-content").data('config').categ;
	var current_offset = $("#caroussel-content").data('config').offset;
	if(clicked_arrow == 'right' && current_offset<12){
		$("#caroussel-content").html("<img class='loading' src='' alt='loading'/>")
		var new_offset = current_offset+4;
		console.log('droite and offset '+new_offset);
		$.get(templatePath+'/inc/caroussel.php',{ loop: current_categ , offset: new_offset},function(data){
			$("#caroussel-content").html(data);
			$("#caroussel-content").data('config', {categ: current_categ, offset : new_offset});
		});
	}else if(clicked_arrow == 'left' && current_offset>0){
		$("#caroussel-content").html("<img class='loading' src='' alt='loading'/>")
		var new_offset = current_offset-4;
		console.log('gauche and offset '+new_offset);
		$.get(templatePath+'/inc/caroussel.php',{ loop: current_categ , offset: new_offset},function(data){
			$("#caroussel-content").html(data);
			$("#caroussel-content").data('config', {categ: current_categ, offset : new_offset});
		});
	}
})

Il est possible d'eviter la duplication du code mais cela necessite de faire un test sur les deux précédentes conditions :(