function contact_form() {
	function stateChanged() {
		if (xmlHttp.readyState==4 || xmlHttp.readyState=='complete') {
			document.getElementById('sendmail').innerHTML=xmlHttp.responseText;
		}
	}
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null) { alert (ajaxerror);return; }
	xmlHttp.onreadystatechange=stateChanged;
	
	document.getElementById('contact_submit_btn').onclick='';
	document.getElementById('contact_submit_btn').className+=' off';
	document.getElementById('contact_cancel_btn').onclick='';
	document.getElementById('contact_cancel_btn').className+=' off';
	
	var params = "e="+document.getElementById('contact_e').value +
		"&contact_name="+document.getElementById('contact_name').value +
		"&contact_company_name="+document.getElementById('contact_company_name').value +
		"&contact_email="+document.getElementById('contact_email').value +
		"&contact_phone="+document.getElementById('contact_phone').value +
		"&contact_question="+document.getElementById('contact_question').value;
	
	xmlHttp.open("POST","inc/ajax_contact.php",true);
	xmlHttp.setRequestHeader('Content-type','application/x-www-form-urlencoded');
	xmlHttp.setRequestHeader('Content-length',params.length);
	xmlHttp.setRequestHeader('Connection','close');
	xmlHttp.send(params);
}
function reset_contact_form() {
	document.getElementById('contact_name').value='';
	document.getElementById('contact_company_name').value='';
	document.getElementById('contact_email').value='';
	document.getElementById('contact_phone').value='';
	document.getElementById('contact_question').value='';
}

var ajaxerror="A böngésződ nem képes az AJAX technológia használatára!\nFrissítsd, hogy használhasd az oldalt!";
function GetXmlHttpObject() {
	var xmlHttp=null;
	try {
	  // Firefox, Opera 8.0+, Safari
	  xmlHttp=new XMLHttpRequest();
	} catch (e) {
	  // Internet Explorer
	  try {
		xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	  } catch (e) {
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }
	}
	return xmlHttp;
}