var request = false;
    try {
      request = new XMLHttpRequest();
    } catch (trymicrosoft) {
      try {
        request = new ActiveXObject("Msxml2.XMLHTTP");
      } catch (othermicrosoft) {
        try {
          request = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (failed) {
          request = false;
        }
      }
    }
if (!request)
    alert("Error initializing XMLHttpRequest!");

function reservation(id, lg){

	window.location = "reservation.php?id="+id+"&lang="+lg;
}

function test1(){

	var test1 = document.demoform.checkbox.checked;
	var test2 = document.demoform.checkbox1.checked;
	//alert(test1);
		if(test1 == true)
			var value1 = document.demoform.checkbox.value;
		else var value1 = 0;

		if(test2 == true)
			var value2 = document.demoform.checkbox1.value;
		else  var value2 = 0;

   //var result = test+test3;
		var result = parseFloat(value1) + parseFloat(value2);

		var url = "result.php?result="+result;

		request.open("GET", url, true);
		request.onreadystatechange = loadResponse;
		request.send(null);

}

function pribirane() {

	var check = document.demoform.pribirane.checked;

	if(check == true) {
			var value1 = document.demoform.pribirane.value;
			var result = document.demoform.controlresult.value;

			var new_result = parseFloat(value1) + parseFloat(result);
	}
	else {
			var value1 = document.demoform.pribirane.value;
			var result = document.demoform.controlresult.value;

			var new_result = parseFloat(result) - parseFloat(value1) ;
	}

	document.demoform.controlresult.value = new_result;

}

function check_new(id) {

	var check = document.demoform[id].checked;

	if(check == true) {
			var value1 = document.demoform[id].value;
			var result = document.demoform.controlresult.value;

			var new_result = parseFloat(value1) + parseFloat(result);
	}
	else {
			var value1 = document.demoform[id].value;
			var result = document.demoform.controlresult.value;

			var new_result = parseFloat(result) - parseFloat(value1) ;
	}

	document.demoform.controlresult.value = new_result;

}

function days_10(id) {

	var check = document.demoform[id].checked;
	var days  = document.demoform.days.value;

	if(days < 11) {
		if(check == true) {
			var value1 = document.demoform[id].value;
			var result = document.demoform.controlresult.value;

			var new_result = parseFloat(value1) + parseFloat(result);
		}
		else {
			var value1 = document.demoform[id].value;
			var result = document.demoform.controlresult.value;

			var new_result = parseFloat(result) - parseFloat(value1) ;
		}
		document.demoform.controlresult.value = new_result;
	}
	else {
		var result = document.demoform.controlresult.value;
		document.demoform.controlresult.value = result;
	}

}

function days_all(id) {

	var check = document.demoform[id].checked;
	var days  = document.demoform.days.value;

		if(check == true) {
			var value1 = document.demoform[id].value;
			var result = document.demoform.controlresult.value;

			var new_result = ((days*parseFloat(value1)) + parseFloat(result));
		}
		else {
			var value1 = document.demoform[id].value;
			var result = document.demoform.controlresult.value;

			var new_result = (parseFloat(result) - (days*parseFloat(value1))) ;
		}
		document.demoform.controlresult.value = new_result;
}



function change1() {

	var test2 = document.demoform.checkbox1.checked;

	if(test2 == true) {
			var value2 = document.demoform.checkbox1.value;
			var result = document.demoform.controlresult.value;

			var new_result = parseFloat(value2) + parseFloat(result);
	}
	else {
			var value2 = document.demoform.checkbox1.value;
			var result = document.demoform.controlresult.value;

			var new_result = parseFloat(result) - parseFloat(value2) ;
	}

	document.demoform.controlresult.value = new_result;

}

function loadResponse(){
	if (request.readyState == 4) {
	     if(request.status == 200){
		 	var result = request.responseText;
			document.getElementById("displayresult").innerHTML = result;
		 }
	}
}