/**
 * @author Scott Boyd
 * v. 1.02
 * Payload
 */
(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);
/**
 *Top Navigation
*/
$(function() {
		
		// Preload all rollovers
		$("#nav img").each(function() {
			// Set the original src
			rollsrc = $(this).attr("src");
			rollON = rollsrc.replace(/.png$/ig,"-o.png");
			$("<img>").attr("src", rollON);
		});
		
		// Navigation rollovers
		$("#nav a").mouseover(function(){
			imgsrc = $(this).children("img").attr("src");
			matches = imgsrc.match(/-o/);
			
			// don't do the rollover if state is already ON
			if (!matches) {
			imgsrcON = imgsrc.replace(/.png$/ig,"-o.png"); // strip off extension
			$(this).children("img").attr("src", imgsrcON);
			}
			
		});
		$("#nav a").mouseout(function(){
			$(this).children("img").attr("src", imgsrc);
		});
		$("#nav a").click(function(){
			$("#nav a").removeClass("active")
			$(this).addClass("active")
		});
	
});
/**
 *Left & Showcase Navigation Roll
*/
$(function(){
	$('#navigation a')
		.css( {backgroundPosition: "0 0"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(0 -240px)"}, {duration:500})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(0 0)"}, {duration:500})
		})
});
/**
 *Left Navigation Click
*/
$(function(){
	$('#left-nav a')
		.click(function(){
			$("#left-nav a").removeClass("active")
			$(this).addClass("active")
		})
});
/**
 *Showcase Navigation Click
*/
$(function(){
      $('#showcase-nav a')
            .click(function(){
                  $("#showcase-nav a").removeClass("s-active")
                  $(this).addClass("s-active")
                  updateImage(this.id)
            })
});

/**
 *Showcase Background onClick
*/
function updateImage(id){
	$("#showcase-image").fadeOut(500, function() {
	$("#showcase-image").removeClass();      
	$("#showcase-image").addClass("image-" +id);
	$("#showcase-image").fadeIn(500);
	});
}