// 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}, 500);
		    })
		    $('.img_grayscale').mouseout(function(){
			    $(this).stop().animate({opacity:0}, 500);
		    });		
	    });
	    
	    // 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();
	}