function ajax(url) {																										
	var httpObj = false;																											
		httpObj = window.XMLHttpRequest ? new window.XMLHttpRequest : (window.ActiveXObject ? new ActiveXObject("MSXML2.XMLHTTP"): null);
		httpObj.onreadystatechange = function() {																		
		if (httpObj.readyState == 4) {
			if(httpObj.responseText=="true"){
				return true;
			}
			else {
				return false;
			}
		}																														
	};																															
	httpObj.open('POST', url, true);																					
	httpObj.send(null);																										
}

function contact(){
	if(document.getElementById("email").value=="" || document.getElementById("opmerkingen").value==""){
		alert("Alle velden goed invullen s.v.p.\n\nFill in all fields correctly please.");
		return false;
	}
	else {
		return true;
	}

}
function members(){
	if(document.getElementById("email").value==""){
		alert("We hebben wel je e-mail nodig\n\nWe do require your e-mail address");
		return false;
	}
	else {
		return true;
	}
}

function gastenboek(lng){
	if(document.getElementById("naam").value==""){
		lng!='eng' ? alert("Alle velden goed invullen s.v.p.") : alert("Fill in all fields correctly please.");
		return false;
	}
	else {
		return true;
	}
}

function reservering(){
	errors.innerHTML='';
	errors.style.display='none';
	frm=document.forms.reservering_form.getElementsByTagName("input");
	for(i=0;i<frm.length;i++){
		frm[i].value=='' ? errors.innerHTML+=frm[i].name+' is verplicht<br>':0;
	}
	if(errors.innerHTML!=''){
		errors.style.display='block';
		return false;
	}
	else {
		return true;
	}
}	

function sollicitatie() {
	errors.innerHTML='';
	errors.style.display='none';
	frm=document.forms.sollicitatie_form.getElementsByTagName("input");
	for(i=0;i<frm.length;i++){
		frm[i].value=='' ? errors.innerHTML+=frm[i].name+' is verplicht<br>':0;
	}
	if(errors.innerHTML!=''){
		errors.style.display='block';
		return false;
	}
	else {
		return true;
	}
}	
function chauffeur() {
	errors.innerHTML='';
	errors.style.display='none';
	frm=document.forms.chauffeur_form.getElementsByTagName("input");
	for(i=0;i<frm.length;i++){
		frm[i].value=='' ? errors.innerHTML+=frm[i].name+' is verplicht<br>':0;
	}
	if(errors.innerHTML!=''){
		errors.style.display='block';
		return false;
	}
	else {
		return true;
	}
}