function CaptchaCheck(oCaptcha) 
	{
		var isvalid = false;
		var updateString = "captcha=1&value=" + oCaptcha.value;
	
		// NOTE: the following call is *not* asynchronous
		jQuery.ajax({
			    'url': "/moreinfo_update.php?return=count",
			    'cache': false,
			    'async': false,
			    'type': 'POST',
			    'data': updateString,
			    'dataType': 'xml',
			    'error': function(){ alert('Error validating captcha'); },
			    'success': function(data) {
								if (jQuery(data).find("validation").length > 0)
								{
									if (jQuery(data).find("validation").attr("status") == "1")
									{	// captcha value is valid
										isvalid = true;
									}
								}
								else
								{
									alert("didn't get validation results");
								}
			    }
			    });
		    
		oCaptcha.isvalid = isvalid;
	}