var http_request = false;
function officeRequest() {
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
	} else if (window.ActiveXObject) { // IE
		http_request = new ActiveXObject("Microsoft.XMLHTTP");
	}
	var theAgency = document.getElementById('id_agency').value;
	http_request.onreadystatechange = alertContents;
	http_request.open('POST', 'ajax.php?do=office');
	http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	http_request.send("id_agency="+theAgency);

}


function alertContents() {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			document.getElementById('showOffice').innerHTML = http_request.responseText;
		} else {
			document.getElementById('showOffice').innerHTML ='There was a problem with the request.';
		}
	}
}

function departmentRequest() {
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
	} else if (window.ActiveXObject) { // IE
		http_request = new ActiveXObject("Microsoft.XMLHTTP");
	}
	var theOffice = document.getElementById('id_office').value;
	http_request.onreadystatechange = alertDepartmentContents;
	http_request.open('POST', 'ajax.php?do=department');
	http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	http_request.send("id_office="+theOffice);

}


function alertDepartmentContents() {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			document.getElementById('showDepartment').innerHTML = http_request.responseText;
		} else {
			document.getElementById('showDepartment').innerHTML ='There was a problem with the request.';
		}
	}
}

function sectionRequest() {
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
	} else if (window.ActiveXObject) { // IE
		http_request = new ActiveXObject("Microsoft.XMLHTTP");
	}
	var theDept = document.getElementById('id_department').value;
	http_request.onreadystatechange = alertSectiontContents;
	http_request.open('POST', 'ajax.php?do=section');
	http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	http_request.send("id_dept="+theDept);

}


function alertSectiontContents() {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			document.getElementById('showSection').innerHTML = http_request.responseText;
		} else {
			document.getElementById('showSection').innerHTML ='There was a problem with the request.';
		}
	}
}

function subcateRequest() {
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
	} else if (window.ActiveXObject) { // IE
		http_request = new ActiveXObject("Microsoft.XMLHTTP");
	}
	var theCate = document.getElementById('id_maincate').value;
	http_request.onreadystatechange = alertCateContents;
	http_request.open('POST', 'ajax.php?do=subcate');
	http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	http_request.send("id_maincate="+theCate);

}


function alertCateContents() {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			document.getElementById('showSubCate').innerHTML = http_request.responseText;
		} else {
			document.getElementById('showSubCate').innerHTML ='There was a problem with the request.';
		}
	}
}


function subAllcateRequest() {
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
	} else if (window.ActiveXObject) { // IE
		http_request = new ActiveXObject("Microsoft.XMLHTTP");
	}
	var theCate = document.getElementById('id_maincate').value;
	http_request.onreadystatechange = alertAllCateContents;
	http_request.open('POST', 'ajax.php?do=suballcate');
	http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	http_request.send("id_maincate="+theCate);

}


function alertAllCateContents() {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			document.getElementById('showSubCate').innerHTML = http_request.responseText;
		} else {
			document.getElementById('showSubCate').innerHTML ='There was a problem with the request.';
		}
	}
}