function savingsCalculatorInput(form)
{
	isdnType = form.isdnType.options[form.isdnType.selectedIndex].text;
	numberOfISDNConnections = form.numberOfISDNConnections.value;
	numberOfNumbers = form.numberOfNumbers.value;
	callsToGeographic = form.callsToGeographic.value;
	callsToMobile = form.callsToMobile.value;
	callsToService = form.callsToService.value;
	callsToInternational = form.callsToInternational.value;

	document.getElementById("totalNumbers").innerHTML = numberOfNumbers;
	
	xmlhttp = getXmlHttpObject();

	if (xmlhttp == null)
	{
		alert ("Your browser does not support AJAX!");
		return;
	}

	url = "script/voip_besparingstool_request.php";
	queryparameters = "isdnType=" + escape(encodeURI(isdnType)) + "&numberOfISDNConnections=" + escape(encodeURI(numberOfISDNConnections)) + 
	"&numberOfNumbers=" + escape(encodeURI(numberOfNumbers)) + "&callsToGeographic=" + escape(encodeURI(callsToGeographic)) + 
	"&callsToMobile=" + escape(encodeURI(callsToMobile)) + "&callsToService=" + escape(encodeURI(callsToService)) + 
	"&callsToInternational=" + escape(encodeURI(callsToInternational));

	xmlhttp.onreadystatechange=stateChanged;
	xmlhttp.open("POST", url, true);

	xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	xmlhttp.setRequestHeader("Content-length", queryparameters.length);
	xmlhttp.setRequestHeader("Connection", "close");

	xmlhttp.send(queryparameters);
}


function stateChanged()
{
	if (xmlhttp.readyState == 4)
	{
		xmldocument = xmlhttp.responseXML; //responseXML;
		setXML(xmldocument);
	}
}


function setXML(xmldocument)
{
	childnodes = xmldocument.documentElement.childNodes;

	for (i = 0; i < childnodes.length; i++) //childnodes.length
	{
		if(childnodes[i].attributes != null)
		{
        	        key = childnodes[i].attributes[0].nodeValue;
                	value = childnodes[i].attributes[1].nodeValue;

			if(isNaN(value) == false)
			{	
				value = parseFloat(value);
				value = value.toFixed(2);
				value = value.replace (/\./g, ',');
			}


	                document.getElementById(key).innerHTML=value;
		}
	}
}



function getXmlHttpObject()
{
	if (window.XMLHttpRequest)
	{
		// code for IE7+, Firefox, Chrome, Opera, Safari
		return new XMLHttpRequest(); 
	}
	if (window.ActiveXObject)
	{
		// code for IE6, IE5
		return new ActiveXObject("Microsoft.XMLHTTP");
	}
	return null;
}