function MM_validateForm_review() 
{ 
	args=MM_validateForm_review.arguments;
	if (document.getElementById)
	{
		var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm_review.arguments;
		for (i=0; i<(args.length-2); i+=3) 
		{ 
			test=args[i+2]; 
			val=document.getElementById(args[i]);
			if (val) 
			{ 
				nm=val.name; 
				if ((val=val.value)!="") 
				{
					if (test.indexOf('isEmail')!=-1) 
					{ 
						p=val.indexOf('@');
						if (p<1 || p==(val.length-1)) 
							errors+='- '+nm+' must contain an e-mail address.\n';
					} 
					else if (test!='R') 
					{ 
						num = parseFloat(val);
						if (isNaN(val)) 
							errors+='- '+nm+' must contain a number.\n';
						if (test.indexOf('inRange') != -1) 
						{ 
							p=test.indexOf(':');
							min=test.substring(8,p); 
							max=test.substring(p+1);
							if (num<min || max<num) 
								errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
						} 
					} 
				} 
				else if (test.charAt(0) == 'R') 
					errors += '- '+nm+' is required.\n';
			}
		} 
		if (errors) 
		{
			alert('The following error(s) occurred:\n'+errors);
			return false;
		}
	} 
	if(errors=='')
	{
		userName = document.getElementById('UserName').value;
		userEmail = document.getElementById('UserEmail').value;
		userPhone = document.getElementById('UserPhone').value;
		userAddress = document.getElementById('UserAddress').value;
		review = document.getElementById('review').value;
		topicID = document.getElementById('topic_id').value;

		var url='/conversations/save_user_review.php';
		var parametri="name="+userName+"&email="+userEmail+"&phone="+userPhone+"&address="+userAddress+"&review="+review+"&topicID="+topicID;
		$.ajax({	
			  type: "POST",
			  url: url,
			  data: parametri,
			  success: function(msg){
				  document.getElementById('topic_type').innerHTML=msg;
			  }
		  });
	}
	return true;
}