var srcOri = '';
function slideshow(obj, path){
	srcOri = obj.src;
	obj.onerror = function (){
									obj.src = srcOri;
									obj.onmouseover = "";
									obj.onmouseout  = "";
							}
	obj.src= path + "slideshow.gif";		
}
function principale(obj, path){
	obj.src= srcOri;
	obj.onerror = function (){
								obj.src = "/images/foto-scheda-vuota.jpg";
								obj.onmouseover = "";
								obj.onmouseout  = "";
						}
	srcOri = '';
}