Ciao,

grazie mille, allego direttamente il javascript. In questo file, come vedrete con window.load viene caricato anche Nivoslider e successivamente con window.ready isotope.

E' un progettino in wordpress.

codice:
jQuery(window).load(function(JQuery) {

	jQuery('#slider').nivoSlider({
		directionNav: false,
		controlNav: false
	});
	
	// Apply grayscale functions
	JQuery('article header img').each(function() {
		JQuery(this).clone().addClass('colors').css('z-index', '10').insertBefore(this);
		this.src = grayscale(this.src);
	});
	
	// Hover function
	JQuery('article header img').hover(
		function() {
			JQuery(this).stop().animate({"opacity": "0"}, "slow");
		},
		function() {
			JQuery(this).stop().animate({"opacity": "1"}, "slow");
		}
    );
	
});
	
jQuery(document).ready(function(JQuery){

	// Start isotope
	JQuery('#content').isotope( {
		itemSelector : 'article'
	});
	
	// Filter items when filter link is clicked
	JQuery('#filters a').click(function(){
		var selector = JQuery(this).attr('data-filter');
		JQuery('#content').isotope({ filter: selector });
		return false;
	});
	
});

//Grayscale function
	function grayscale(src) {
		//check if current browser supports canvas
		var supportsCanvas = !!document.createElement('canvas').getContext;
		if (supportsCanvas) {
			var canvas = document.createElement('canvas'),
			context = canvas.getContext('2d'), // use 2d
			imageData, px, length, i = 0, gray,
			
			img = new Image();
			img.src = src;
			canvas.width = img.width;
			canvas.height = img.height;
			context.drawImage(img, 0, 0); // draw the img image starting top left in the canvas
			imageData = context.getImageData(0, 0, canvas.width, canvas.height);
			px = imageData.data;
        	length = px.length;
        	
        	for (; i < length; i += 4) {
				gray = px[i] * .3 + px[i + 1] * .59 + px[i + 2] * .11;
				px[i] = px[i + 1] = px[i + 2] = gray;
			}
			
			context.putImageData(imageData, 0, 0);
        	return canvas.toDataURL();
		}
		else {
        	return src;
    	}
	}
Grazie mille a tutti

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