/**
 * @author Alexander Farkas
 * v. 1.02
 */
(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);

$(function(){
	$('#nav-home, #nav-services, #nav-portfolio, #nav-journal, #nav-about, #nav-contact')
		.css( {backgroundPosition: "0px 0px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(0px -51px)"}, {duration:400})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(0px 0px)"}, {duration:400, complete:function(){
				$(this).css({backgroundPosition: "0px 0px"})
			}})
		})
});

$(function(){	$('.web-3rddc, .web-consultancy, .web-cf, .web-dekerf, .web-ivr, .web-pmnafrica, .web-pmo, .web-qeeps, .web-samsung, .web-eastside, .web-sirran, .web-teleware, .web-ui, .logo-vemotion, .logo-wsl, .logo-ivr, .logo-fp, .logo-jhp, .logo-revetment, .logo-pmna, .logo-fw, .logo-it, .logo-cc, .logo-as, .logo-cf, .logo-hc, .graphic-teleware, .graphic-evening, .graphic-tto, .graphic-qeeps, .graphic-samsung, .graphic-particle, .graphic-lighthouse, .graphic-planet')
		.css( {backgroundPosition: "0px 0px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(0px -63px)"}, {duration:200})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(0px 0px)"}, {duration:200, complete:function(){
				$(this).css({backgroundPosition: "0px 0px"})
			}})
		})
});