$(document).ready(function() {
	$("div.open_contact").click(function(){
		$("div#top-slider").animate({
			marginTop: "0px"
		})
		.animate({
			marginTop: "-20px"
		}, "fast");
	
	});	
	
   $("div#close-top-slider").click(function(){
		$("div#top-slider").animate({
			marginTop: "-141px"
		}, "fast");
		
	
   });
   
$('div.portfolio-item').children('.test').css("opacity","0");
   
   
$('div.portfolio-item').hover(
	function() {
        $(this).children('.test').animate({opacity: 0.8}, 'fast');
    },
	function(){
		$(this).children('.test').animate({opacity: 0}, 'fast')});

$('#backtoTop a')

	.css( {backgroundPosition: "0px 0px"} )

	.click(function(){
		$('html, body').animate({scrollTop:0}, 'slow');
	})
	.mouseover(function(){
		$(this).stop().animate(

			{backgroundPosition:"(0px -35px)"}, 

			{duration:200})

		})

	.mouseout(function(){

		$(this).stop().animate(

			{backgroundPosition:"(0 0)"}, 

			{duration:200})

		});
		
		

$('#nav-left a')

	.css( {backgroundPosition: "0px 0px"} )


	.mouseover(function(){
		$(this).stop().animate(

			{backgroundPosition:"(0px -35px)"}, 

			{duration:200})

		})

	.mouseout(function(){

		$(this).stop().animate(

			{backgroundPosition:"(0 0)"}, 

			{duration:200})

		});
		
		
$('#nav-right a')

	.css( {backgroundPosition: "right 0px"
	
	} )


	.mouseover(function(){
		$(this).stop().animate(

			{backgroundPosition:"right -35px)"}, 

			{duration:200})

		})

	.mouseout(function(){

		$(this).stop().animate(

			{backgroundPosition:"(right 0)"}, 

			{duration:200})

		});
		
		
$('.share_twitter, .share_facebook, .share_permalink')

	.css( {backgroundPosition: "0px -27px"} )

	.mouseover(function(){
		$(this).stop().animate(

			{backgroundPosition:"(0px 0px)"}, 

			{duration:200})

		})

	.mouseout(function(){

		$(this).stop().animate(

			{backgroundPosition:"(0px -27px)"}, 

			{duration:200})

		});
		
			
$('a.contact_bottom')

.click(function(){
		$('html, body').animate({scrollTop:0}, 'slow');
		$("div#top-slider").animate({
			marginTop: "0px"
		})
		.animate({
			marginTop: "-20px"
		}, "fast");
	})
	
});



/**
 * @author Alexander Farkas
 * v. 1.21
 */


(function($) {
	if(!document.defaultView || !document.defaultView.getComputedStyle){ // IE6-IE8
		var oldCurCSS = jQuery.curCSS;
		jQuery.curCSS = function(elem, name, force){
			if(name === 'background-position'){
				name = 'backgroundPosition';
			}
			if(name !== 'backgroundPosition' || !elem.currentStyle || elem.currentStyle[ name ]){
				return oldCurCSS.apply(this, arguments);
			}
			var style = elem.style;
			if ( !force && style && style[ name ] ){
				return style[ name ];
			}
			return oldCurCSS(elem, 'backgroundPositionX', force) +' '+ oldCurCSS(elem, 'backgroundPositionY', force);
		};
	}
	
	var oldAnim = $.fn.animate;
	$.fn.animate = function(prop){
		if('background-position' in prop){
			prop.backgroundPosition = prop['background-position'];
			delete prop['background-position'];
		}
		if('backgroundPosition' in prop){
			prop.backgroundPosition = '('+ prop.backgroundPosition;
		}
		return oldAnim.apply(this, arguments);
	};
	
	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]];
	}
	
	$.fx.step. backgroundPosition = function(fx) {
		if (!fx.bgPosReady) {
			var start = $.curCSS(fx.elem,'backgroundPosition');
			
			if(!start){//FF2 no inline-style fallback
				start = '0px 0px';
			}
			
			start = toArray(start);
			
			fx.start = [start[0],start[2]];
			
			var end = toArray(fx.options.curAnim.backgroundPosition);
			fx.end = [end[0],end[2]];
			
			fx.unit = [end[1],end[3]];
			fx.bgPosReady = true;
		}
		//return;
		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];

	};
})(jQuery);