function formHandler() 
{
		url = _root + "include/results.asp"
			$.post(url,function(data){
				$("#captchaImg").attr("src",_root+"include/captcha.aspx?c="+data+"&w=218&h=48");
				$("#captcha_check").val(data);
				$("#captchaImg").show();
			});
}	

function checkCaptcha() 
{
	url = _root + "include/results.asp";
	$.ajax({type: "POST",url:url, async: false, data:"a=check&sCaptchaCode="+$("#captcha_check").val()+"&sCaptcha="+$("#captcha").val()+"", success: function(data){
			if(data == "true"){
				sReturn = true;
			}else{
				alert("De door u ingegeven tekens komen niet overeen met de afbeelding.")
				sReturn = false;
			}
		}
	});
	
	 return sReturn;
	
}	

	
function checkNum(obj){
	var thisid		= obj.id
	var zipValue 	= obj.value
	var zipLength 	= (zipValue.length-1);
	var newValue	= ""		
	
	for (i=0; i<=zipLength; i++){
		var thisChar=zipValue.charAt(i)
		if (i<10){
			if (isNaN(thisChar)==false){
				newValue = newValue + thisChar
			}
		}
	}
	document.getElementById(thisid).value = newValue
}