// wrap as a jQuery plugin and pass jQuery in to our anoymous function
(function ($) {
    $.fn.cross = function (options) {
    	var settings = {
    		      'currentClassName' : 'current',
    		      'imageOverSubfix' : '_'
	    };
    	
        return this.each(function (i) { 
        	//merge default options with called function set
        	if ( options ) { 
                $.extend( settings, options );
              }

            // cache the copy of jQuery(this) - the start image
            var $$ = $(this);
            
            // get the target from the backgroundImage + regexp
            //var target = $$.css('backgroundImage').replace(/^url|[\(\)'"]/g, ''); //this one uses background-image css property
            var target = $$.attr("src").match(/[^\.]+/) + settings['imageOverSubfix'] + $$.attr("src").substring($$.attr("src").lastIndexOf('.'));

            // nice long chain: wrap img element in span
            $$.wrap('<span style="position: relative;"></span>')
                // change selector to parent - i.e. newly created span
                .parent()
                // prepend a new image inside the span
                .prepend('<img>')
                // change the selector to the newly created image
                .find(':first-child')
                // set the image to the target
                .attr('src', target);

            // the CSS styling of the start image needs to be handled
            // differently for different browsers
            //if ($.browser.msie || $.browser.mozilla) {
            if ($.browser.mozilla) {
                $$.css({
                    'position' : 'absolute', 
                    'left' : 0,
                    'background' : '',
                    'top' : this.offsetTop
                });
            } else if ($.browser.opera && $.browser.version < 9.5) {
                // Browser sniffing is bad - however opera < 9.5 has a render bug 
                // so this is required to get around it we can't apply the 'top' : 0 
                // separately because Mozilla strips the style set originally somehow...                    
                $$.css({
                    'position' : 'absolute', 
                    'left' : 0,
                    'background' : '',
                    'top' : "0"
                });
            } else { // Safari
                $$.css({
                    'position' : 'absolute', 
                    'left' : 0,
                    'background' : ''
                });
            }

            //check for current menu item so it won't fade
            var isCurrent = 0;
            jQuery.each($$.attr('class').split(' '), function(i,val){
            	if (val == settings['currentClassName']){ 
            		isCurrent = 1;
            		$$.css({'opacity' : 0});
            	}
            });
            
            // add fade animation if not current menu item
            if (isCurrent == 0){
	            // similar effect as single image technique, except using .animate 
	            // which will handle the fading up from the right opacity for us
	            $$.hover(function () {
	                $$.stop().animate({
	                    opacity: 0
	                }, 250);
	            }, function () {
	                $$.stop().animate({
	                    opacity: 1
	                }, 500);
	            });
            }
        });
    };
    
})(jQuery);

// note that this uses the .bind('load') on the window object, rather than $(document).ready() 
// because .ready() fires before the images have loaded, but we need to fire *after* because
// our code relies on the dimensions of the images already in place.
$(window).bind('load', function () {
    $('img.fade').cross({'currentClassName' : 'current', 'imageOverSubfix' : '_on'});
});


    swfobject.embedSWF("images/top.swf", "topBanner", "960", "206", "9.0.0", false);