jquery.menus.plugin.js

/*************************************************
**  jQuery Nice Menus version 1.0.0
**  copyright Fred Kelly, licensed GPL & MIT
**  http://fredkelly.net/
**************************************************/

(function($){
	$.fn.menus = function() {
		
		return this.each(function() {

			obj = $(this);
			$items = obj.children('li');
			
			var combined = 0;
			var current = 0;
			
			// grab combined with of all list items
			$items.each(function() {
				combined += $(this).outerWidth();
			});
			
			$items.each(function(i) {
				
				var output = Math.floor(($(this).outerWidth()/combined)*100*(obj.width()/100));
				
				current += output;
				
				// add pixels left after rounding down
				if ((i+1)==$items.size()) {
					output += obj.width()-current;
				}
				
				// remove borders & padding from output
				output -= $('a:first', this).outerWidth()-$('a:first', this).width();
				
				$('a:first', this).css('width', output + 'px');
				
			});
			
		});

	};
})(jQuery);