if (top.location!= self.location) {
	top.location = self.location.href
}

//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.button').cross();
});

// wrap as a jQuery plugin and pass jQuery in to our anoymous function
(function ($) {
    $.fn.cross = function (options) {
        return this.each(function (i) { 
            // 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, '');

            // 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 ($.browser.msie) {
			if($.browser.version > 7){
				//for IE 8
				$$.css({
					'position': 'absolute',
					'left': 0,
					'background': '',
					'top': -this.height
				});
			}else{
				//for IE 6 & 7
				$$.css({
					'position': 'absolute',
					'left': 0,
					'background': '',
					'top': "0"
				});
			}
		} else 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': ''
			});
		}

            // 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
                }, 250);
            });
        });
    };
    
})(jQuery);