function createRequestObject(){
	var request_;
	var browser = navigator.appName;
	if(browser == "Microsoft Internet Explorer"){
	 request_ = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
	 request_ = new XMLHttpRequest();
	}
	return request_;
}

var http = createRequestObject();

function getWeeksAssignment(){
	http.open('get', 'ajax.php5?action=get_weeks_assignment&id='
	  + document.timecard.assignmentId.options[document.timecard.assignmentId.selectedIndex].value);

	http.onreadystatechange = handleInfo;

	http.send(null);
}

function getAssignments(){
	http.open('get', 'ajax.php5?action=get_assignments&id='
	  + document.timecard.staffingCustomerId.options[document.timecard.staffingCustomerId.selectedIndex].value);

	http.onreadystatechange = handleInfo3;

	http.send(null);
}


function GetOrgUnits(){
	http.open('get', 'ajax.php5?action=get_staffingcustomerorgunits&id='
	  + document.assignment.staffingCustomerId.options[document.assignment.staffingCustomerId.selectedIndex].value);

	http.onreadystatechange = handleInfo2;

	http.send(null);
}

function getContracts(){
	http.open('get', 'ajax.php5?action=get_contracts&id='
	  + document.assignment.staffingcustomer.options[document.assignment.staffingcustomer.selectedIndex].value);

	http.onreadystatechange = handleInfo4;

	http.send(null);
}

function handleInfo(){
	if(http.readyState == 1){
	 document.getElementById('week_div').innerHTML = 'Loading...';
	}
	if(http.readyState == 4){
	
	 var response = http.responseText;
	 document.getElementById('week_div').innerHTML = response;
	 document.getElementById('submit_div').innerHTML = '<input type="submit" value="Nieuw" />';
	}
}

function handleInfo2(){
	if(http.readyState == 1){
	 document.getElementById('orgunit_div').innerHTML = 'Loading...';
	}
	if(http.readyState == 4){
	
	 var response = http.responseText;
	 document.getElementById('orgunit_div').innerHTML = response;
	}
}

function handleInfo3(){
	if(http.readyState == 1){
	 document.getElementById('assignments_div').innerHTML = 'Loading...';
	}
	if(http.readyState == 4){
	
	 var response = http.responseText;
	 document.getElementById('week_div').innerHTML = '';
	 document.getElementById('assignments_div').innerHTML = response;
	}
}

function handleInfo4(){
	if(http.readyState == 1){
	 document.getElementById('contract_div').innerHTML = 'Loading...';
	}
	if(http.readyState == 4){
	 var response = http.responseText;
	 document.getElementById('contract_div').innerHTML = response;

	//inleners ophalen
	http.open('get', 'ajax.php5?action=get_inleners&id='
	  + document.assignment.staffingcustomer.options[document.assignment.staffingcustomer.selectedIndex].value);
	http.onreadystatechange = handleInfo5;
	http.send(null);
	}
}

function handleInfo5(){
	if(http.readyState == 1){
	 document.getElementById('inlener_div').innerHTML = 'Loading...';
	}
	if(http.readyState == 4){
	 var response = http.responseText;
	 document.getElementById('inlener_div').innerHTML = response;
	}
}


function UpdateInleners(sc) {
	http.open('get', 'ajax.php5?action=get_inleners&id=' + sc);

	http.onreadystatechange = handleInfo7;

	http.send(null);
}

function handleInfo7(){
	if(http.readyState == 1){
	 document.getElementById('bart123').innerHTML = 'Loading...';
	}
	if(http.readyState == 4){
	 var response = http.responseText;
	 document.getElementById('bart123').innerHTML = response;
	}
}
var timer;
var seconds = 0.5;

function getUsers(txt) {
	if (timer) clearTimeout(timer);
	timer= setTimeout('getUsersNow("'+ txt + '")',seconds*1000);
}

function getUsersNow(txt) {
	http.open('get', 'ajax.php5?action=get_users&txt='+txt, true);
	http.onreadystatechange = handleUsers;
	http.send(null);
}

function handleUsers(){
	if(http.readyState == 1){
	 	document.getElementById('bart312').innerHTML = 'Loading...';
	} else if(http.readyState == 4) {
		document.getElementById('bart312').innerHTML = http.responseText;
	}
}