function openBiggerPhoto(imagePath, imageWidth, imageHeight) { 
	$.blockUI({ 
		message: "<div><img src='"+imagePath+"' alt='' /></div>", 
		css: { 
			top:  ($(window).height() - imageHeight) /2 + 'px', 
			left: ($(window).width() - imageWidth) /2 + 'px', 
			cursor: null,
			width: imageWidth+"px",
			border: '5px solid #ffffff'
		},
		overlayCSS:{
			cursor:null,
			backgroundColor:'#000000', 
			opacity:0.6
		}
	}); 
	$('.blockOverlay').attr('title','Click to unblock').click($.unblockUI); 
	return false;
}