$(document).ready(function () {
	var width = $('#center').width();
	if (width > 600) {
		var numInstance = Math.floor(width / 200);
		var availableWidth = width - (numInstance * 200)
		var margin = Math.floor(availableWidth / (numInstance-1) );
		
		var i = 0;
		$('.s_categoryInstance').each (function () {
			if (((i+1) % numInstance) != 0) {
				$(this).css('margin-right', margin);
			}
			i++;
		});
	}
	
	$(window).resize(function () {
		var width = $('#center').width();
		if (width > 600) {
			var numInstance = Math.floor(width / 200);
			var availableWidth = width - (numInstance * 200)
			var margin = Math.floor(availableWidth / (numInstance-1) );
			
			var i = 0;
			$('.s_categoryInstance').each (function () {
				if (((i+1) % numInstance) != 0) {
					$(this).css('margin-right', margin);
				} else {
					$(this).css('margin-right', 0);
				}
				i++;
			});
		} else {
			$('.s_categoryInstance').css('margin-right', 0);
		}
	});
});