(function($) {

$.fn.orphans = function(){
    var txt = [];
    this.each(function(){$.each(this.childNodes, function() {
        if (this.nodeType == 3 && $.trim(this.nodeValue)) txt.push(this)
    })}); 
    return $(txt);
};

$.fn.fadeToggle = function(speed, easing, callback) {
    return this.animate({opacity: 'toggle'}, speed, easing, callback);
};
$.fn.slideFadeToggle = function(speed, easing, callback) {
    return this.animate({opacity: 'toggle', height: 'toggle'}, speed, easing, callback);
};
})(jQuery);

$(function() {
    $('.container .collapse').hide(); 
    $('.container .expand').orphans().wrap('<a href="#" title="expand/collapse"></a>');
    

    $('.container .expand').click(function() {
        $(this).toggleClass('open').siblings().removeClass('open').end()
        .next('.collapse').slideFadeToggle('slow','linear').siblings('.collapse:visible').slideFadeToggle('slow','linear');
        return false;
    });
    
  
});


(function($) {
	$.extend($.fx.step,{
	    backgroundPosition: function(fx) {
            if (fx.state === 0 && typeof fx.end == 'string') {
                var start = $.curCSS(fx.elem,'backgroundPosition');
                start = toArray(start);
                fx.start = [start[0],start[2]];
                var end = toArray(fx.end);
                fx.end = [end[0],end[2]];
                fx.unit = [end[1],end[3]];
			}
            var nowPosX = [];
            nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];
            nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];           
            fx.elem.style.backgroundPosition = nowPosX[0]+' '+nowPosX[1];
            
           function toArray(strg){
               strg = strg.replace(/left|top/g,'0px');
               strg = strg.replace(/right|bottom/g,'100%');
               strg = strg.replace(/([0-9\.]+)(\s|\)|$)/g,"$1px$2");
               var res = strg.match(/(-?[0-9\.]+)(px|\%|em|pt)\s(-?[0-9\.]+)(px|\%|em|pt)/);
               return [parseFloat(res[1],10),res[2],parseFloat(res[3],10),res[4]];
           }
        }
	});
})(jQuery);

$(document).ready(function() {

			$('#boat').css({backgroundPosition: '(0px 0px)'});
			$('#boat').animate({backgroundPosition: '(100% 0px)'}, 30000);

 
});