function checkForm(){
			if (n_options==2){
				opzione=findObj("id["+second_option+"]");
				message='Le opzioni selezionate non sono disponibili';
			} else if (n_options==1){
				opzione=findObj("id["+first_option+"]");
				message='L\'opzione selezionata non è disponibile';
			}

			var stringa=opzione.options[opzione.selectedIndex].text;
			//alert(stringa);
			if (stringa.indexOf('esaurito')>0){
				alert(message);
				return false;
			}

			return true;
		}


		function findObj(n, d) { 
		  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
		  d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
		  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
		  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
		  if(!x && document.getElementById) x=document.getElementById(n); return x;
		}

		
		function Popola_menu( selObj ) {
		  var f = eval( "document.cart_quantity");
		  var val = "";
		  var taglia=selObj;
		  var colore=findObj("id["+second_option+"]");
		  var message=""
		  
		  val = selObj.options[selObj.selectedIndex].value;
			
		  for ( var i = 0; i < stock_array[val].length; i++ ) {
			colore.options[i].text =stock_array[val][i];
		  }
		 }
		 
		 function inizialize_menu (){
			 var menu=findObj("id["+first_option+"]");
			 //alert(menu.options.lenght);
			 //alert(menu.options[2].text);
		 	
			if (n_options==1){
				
				//menu.options[indice].selected=true;
				//for(i=0; i<
				
			} else if (n_options==2){
				//
			}
		 	
		 }
		 
function change_image(selObj){
	var img=findObj("products_image");
	var option_value=selObj.options[selObj.selectedIndex].value;
	img.src='images/'+immagini_arr[option_value]['img_med'];

}

function changeImgPopUp(){
	var option=findObj("id["+img_option_id+"]");
	var option_value=option.options[option.selectedIndex].value;
	var url='images/'+immagini_arr[option_value]['img_big'];
	 window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=380,height=380,screenX=150,screenY=150,top=150,left=150')
}

function popupDetails(url, winname, par){
	window.open(url, winname, par);
}