var http_request = false;

		function macheRequest(url,value) {
			if(document.getElementById("popup"))
				document.getElementById("popup").innerHTML = "";
			if(document.getElementById("calculator"))
				document.getElementById("calculator").innerHTML = "";

				http_request = false;
				if (window.XMLHttpRequest) { // Mozilla, Safari,...
						http_request = new XMLHttpRequest();
						if (http_request.overrideMimeType) {
								http_request.overrideMimeType('text/xml');
								// zu dieser Zeile siehe weiter unten
						}
				} else if (window.ActiveXObject) { // IE
						try {
								http_request = new ActiveXObject("Msxml2.XMLHTTP");
						} catch (e) {
								try {
										http_request = new ActiveXObject("Microsoft.XMLHTTP");
								} catch (e) {}
						}
				}

				if (!http_request) {
						alert('Your browser caused an error.Please try it again.If the problem continues please contact our Service Center.');
						return false;
				}


				//POST REQUEST
			 // parameters = 'pid='+value;
			//  http_request.open('POST', url, true);
		 //   http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		//    http_request.setRequestHeader("Content-length", parameters.length);
	 //     http_request.setRequestHeader("Connection", "close");
	//      http_request.send(parameters);
		 if(url=="calculator.php"){
				http_request.onreadystatechange = alertInhalt;
	 }else{
				http_request.onreadystatechange = alertInhalt2;
	 }

			http_request.open('GET', url+'?pid='+value, true);
			http_request.send(null);
		}

	 function macheRequest_cart(url,value,miles,dollar) {
				http_request = false;
				if (window.XMLHttpRequest) { // Mozilla, Safari,...
						http_request = new XMLHttpRequest();
						if (http_request.overrideMimeType) {
								http_request.overrideMimeType('text/xml');
								// zu dieser Zeile siehe weiter unten
						}
				} else if (window.ActiveXObject) { // IE
						try {
								http_request = new ActiveXObject("Msxml2.XMLHTTP");
						} catch (e) {
								try {
										http_request = new ActiveXObject("Microsoft.XMLHTTP");
								} catch (e) {}
						}
				}

				if (!http_request) {
						alert('Your browser caused an error.Please try it again.If the problem continues please contact our Service Center.');
						return false;
				}


				//POST REQUEST
			 // parameters = 'pid='+value;
			//  http_request.open('POST', url, true);
		 //   http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		//    http_request.setRequestHeader("Content-length", parameters.length);
	 //     http_request.setRequestHeader("Connection", "close");
	//      http_request.send(parameters);


		 if(url=="calculator.php"){
				http_request.onreadystatechange = alertInhalt;
	 }else{
				http_request.onreadystatechange = alertInhalt2;
	 }

			http_request.open('GET', url+'?pid='+value+'&miles='+miles+'&dollar='+dollar+'&cart=true', true);
			http_request.send(null);
		}


	function alertInhalt() {


		if (http_request.readyState == 4) {

					var answer = http_request.responseText;
					if(document.getElementById("calculator").innerHTML != answer){
					document.getElementById("calculator").innerHTML = answer;
					}
					else{
					document.getElementById("calculator").innerHTML = "";
					}


				}

		}
	function alertInhalt2() {


		if (http_request.readyState == 4) {

					var answer = http_request.responseText;
					if(document.getElementById("popup").innerHTML != answer){

					document.getElementById("popup").innerHTML = answer;
					}
					else{
					document.getElementById("popup").innerHTML = "";
					}


				}

		}