function startUpload(id) {
	document.getElementById('f'+id+'_upload_process').style.visibility = 'visible';
	document.getElementById('f'+id+'_upload_process').innerHTML = "<img src='IMG/loader.gif' />";
	document.getElementById('file_'+id).readOnly = 'readonly';
	return true;
}

function stopUpload(success, id) {
	divName = 'f'+id+'_upload_process';
	if (success == 1){
		document.getElementById(divName).innerHTML = "<img src='IMG/success.gif' />";
	} else {
		document.getElementById(divName).innerHTML = "<img src='IMG/failure.gif' />";
	}
	document.getElementById('file_'+id).value = "";
	reloadPage();
}
function checkFile(phpCheckFile, filename, outputDiv, correctExt) {
	xmlhttp = createXmlhttp();
	obj = document.getElementById(outputDiv);
	xmlhttp.open("GET", "controllers/docs/checkfileextension.php?filename="+filename+"&ext="+correctExt);
	xmlhttp.onreadystatechange = function() {
	if (xmlhttp.readyState == XMLHTTP_READY && xmlhttp.status == XMLHTTP_SUCCEED_CODE) {
			if (xmlhttp.responseText == "success") {
				document.getElementById('upload1').disabled = false;
				obj.innerHTML = "<img src='IMG/success.gif' />";
			} else {
				obj.innerHTML = "<img src='IMG/failure.gif' />";
			}
		}
	}
	xmlhttp.send(null);
}
function deleteFile(filename, type) {
	if (confirm('Weet u zeker dat u het bestand '+filename+' wilt verwijderen?')) {
		loadPage('controllers/docs/deletefile.php?filename='+filename+'&type='+type, 'documents');
	}
}