<script type=”text/javascript”>

// On window load. This waits until images have loaded which is essential

$(window).load(function(){

// Fade in images so there isn’t a color “pop” document load and then on window load

$(“.item img”).fadeIn(500);

// clone image

$(‘.item img’).each(function(){

var el = $(this);

el.css({“position”:”absolute”}).wrap(“<div class=’img_wrapper’ style=’display: inline-block’>”).clone().addClass(‘img_grayscale’).css({“position”:”absolute”,”z-index”:”998″,”opacity”:”0″}).insertBefore(el).queue(function(){

var el = $(this);

el.parent().css({“width”:this.width,”height”:this.height});

el.dequeue();

});

this.src = grayscale(this.src);

});

// Fade image

$(‘.item img’).mouseover(function(){

$(this).parent().find(‘img:first’).stop().animate({opacity:1}, 1000);

})

$(‘.img_grayscale’).mouseout(function(){

$(this).stop().animate({opacity:0}, 1000);

});

});

// Grayscale w canvas method

function grayscale(src){

var canvas = document.createElement(‘canvas’);

var ctx = canvas.getContext(’2d’);

var imgObj = new Image();

imgObj.src = src;

canvas.width = imgObj.width;

canvas.height = imgObj.height;

ctx.drawImage(imgObj, 0, 0);

var imgPixels = ctx.getImageData(0, 0, canvas.width, canvas.height);

for(var y = 0; y < imgPixels.height; y++){

for(var x = 0; x < imgPixels.width; x++){

var i = (y * 4) * imgPixels.width + x * 4;

var avg = (imgPixels.data[i] + imgPixels.data[i + 1] + imgPixels.data[i + 2]) / 3;

imgPixels.data[i] = avg;

imgPixels.data[i + 1] = avg;

imgPixels.data[i + 2] = avg;

}

}

ctx.putImageData(imgPixels, 0, 0, 0, 0, imgPixels.width, imgPixels.height);

return canvas.toDataURL();

}

</script>