function initializeMainMenu(menuid) {
	$.ajax({ type: "GET",   
		dataType: "json",
        url: "php/contenthandler.php?module=admin&command=getJsonMenuItemsAndVersion", 
        async: false,
        success : function(moduleEntries)
        {
	        $("#versioninfo").html(moduleEntries.version + " ");
	        if (moduleEntries.loggedin == 1) {
	        	$("#loggedinuser").html(" " + moduleEntries.user);
	        	var li='<li data-role="list-divider" data-theme="b" data-role="heading">Hauptmenü</li>';
	        	$.each(moduleEntries.menu, function (i, module) {   
	        		var name = module.name;
	        		var link = module.link;
	        		if ((name != "Abmelden") && (name != "Log out") && (name != "Adios")) {
	        			li += '<li data-theme="e"><a href="' + link + '" target="_top" class="modulebutton">' + name + '</a></li>';
	        		} else {
	        			li += '<li data-theme="e"><a href="' + link + '" target="_top">' + name + '</a></li>';
	        		}
	        	});
	        	$(menuid).empty().append(li).promise().done(function () {
	        		$(menuid).listview("refresh");
	        	});
	        	$("#menuswitch").show();
        	} else {
        		$("#menuswitch").hide();
        	}
        },
		error: function( text ) {
			alert( "Kommunikationsproblem zum Server bei Modulabfrage!" );
		}
	});
	
	$(".modulebutton").off("click").on("click", function (e) {
		var view = $(this).attr("href");
		doAjax("POST","php/contenthandler.php?module=admin&command=setLastModuleOfUser",
				{ view: view}, null, "Problem Benutzerdatenpflege");
	});
        
        intervalGetPrinterStatus(5);
	intervalCheckConnection(2);
}

function intervalGetPrinterStatus(seconds) {
    doAjax("GET","php/contenthandler.php?module=admin&command=isPrinterServerActive",null,setPrinterStatus,null,true);
    var fetchTimer = setInterval(function() {
        doAjax("GET","php/contenthandler.php?module=admin&command=isPrinterServerActive",null,setPrinterStatus,null,true);
    }, seconds * 1000);
}

function setPrinterStatus(answer) {
    if (answer.status === "OK") {
        if (answer.msg === 0) {
		$(".printerstatus").show();
        } else {
		$(".printerstatus").hide();
	}
	if (answer.tasksforme === 1) {
		$(".tasksstatus").show();
	} else {
		$(".tasksstatus").hide();
	}
	return;
    }
    $(".printerstatus").hide();
}

function hideMenu() {
	$( "#modulepanel" ).panel( "close" );
	$("#menuswitch").off("click").on("click", function (e) {
			$("#menuswitch").trigger("mouseout");
			e.stopImmediatePropagation();
			e.preventDefault();
			$( "#modulepanel" ).panel( "open" );;
	});
}

// to make IE happy...
function refreshList(selector) {
	if ( $(selector).hasClass('ui-listview')) {
		$(selector).listview('refresh');
	} else {
	    $(selector).trigger('create');
	}
}

function doAjax(getOrPost, url, data, functionToCallIfSuccess, errorMsg, doAsync) {
	if (typeof doAsync === 'undefined') {
		doAsync = false;
	}
	$.ajax({type: getOrPost,
		url: url,
		dataType: "json",
		data: data,
		async: doAsync,
		success: function (jsonContent)
		{
			if (functionToCallIfSuccess != null) {
				functionToCallIfSuccess(jsonContent);
			}
		},
		error: function (xhr, status, error) {

			if (url != "php/debug.php") {
				var debugData = {
					cmd: url,
					fct: functionToCallIfSuccess.name,
					xhr: xhr.responseText,
					errormsg: errorMsg,
					status: status
				};

				var n = getMillis();

				if (errorMsg != null) {
					if ($(".connectionstatus").is(":visible")) {
						alert("Kommunikation zum Server ist unterbrochen!");
					} else {
						var errorMsgTxt = errorMsg + error + " (" + url + ")";
						alert("Kommunikationsfehler zum Server: " + errorMsgTxt);
						doAjax("POST", "php/debug.php?n=" + n, debugData, null, true);
					}
				}
			}
		}
	});
}

function doAjaxAsync(getOrPost, url, data, functionToCallIfSuccess) {
	$.ajax({type: getOrPost,
		url: url,
		dataType: "json",
		data: data,
		async: true,
		success: function (jsonContent)
		{
			if (functionToCallIfSuccess != null) {
				functionToCallIfSuccess(jsonContent);
			}
		},
		error: function (xhr, status, error) {
			if (url != "php/debug.php") {
				var debugData = {
					cmd: url,
					fct: functionToCallIfSuccess.name,
					xhr: xhr.responseText,
					errormsg: errorMsg,
					status: status
				};

				var n = getMillis();

				if (errorMsg != null) {
					if ($(".connectionstatus").is(":visible")) {
						alert("Kommunikation zum Server ist unterbrochen!");
					} else {
						var errorMsgTxt = errorMsg + error + " (" + url + ")";
						alert("Kommunikationsfehler zum Server: " + errorMsgTxt);
						doAjax("POST", "php/debug.php?n=" + n, debugData, null, true);
					}
				}
			}
		}
	});
}

function doAjaxTransmitData(getOrPost,url,data,functionToCallIfSuccess,errorMsg,dataToTransmit) {
	$.ajax({ type: getOrPost,   
        url: url, 
        dataType: "json",
        data: data,
        async: false,
        success : function(jsonContent)
        {
        	if (functionToCallIfSuccess != null) {
        		functionToCallIfSuccess(jsonContent,dataToTransmit);
        	}
        },
        error: function(xhr,status,error ) {
        	if (errorMsg != null) {
    			var errorMsgTxt = errorMsg + ", Status: " + status + ", Error:" + error + ", Msg: " + xhr.responseText + " (" + url + ")";
    			alert( "Kommunikationsfehler zum Server: " + errorMsgTxt);
    		}
        }
	});
}

function doAjaxSuppressError(getOrPost,url,data,functionToCallIfSuccess,errorMsg) {
	$.ajax({ type: getOrPost,   
        url: url, 
        dataType: "json",
        data: data,
        async: false,
        success : function(jsonContent)
        {
        	if (functionToCallIfSuccess != null) {
        		functionToCallIfSuccess(jsonContent);
        	}
        },
		error: function( text ) {
			functionToCallIfSuccess("ERROR");
		}
	});
}

function doAjaxNonJsonNonCall(getOrPost,url,data) {
	$.ajax({ type: getOrPost, 
		data : data,
        url: url, 
        async: false,
		error: function( text ) {
			alert( "Kommunikationsproblem zum Server" );
		}
	});
}

function toHtml(text) {
	if (typeof text === 'string') {
		return (text.replace(/"/g, '&quot;').replace(/</g, "&lt;").replace(/>/g, "&gt;"));
	} else {
		return text;
	}
}

function createExtraParagraph(extras) {
	if ((extras == null) || (extras == "")) {
		return "";
	}
	var extratxt = "";
	for (var j=0;j<extras.length;j++) {
		extratxt += "<p>+ " + toHtml(extras[j]) + "</p>";
	}
	return extratxt;
}

function checkForLogIn() {
	doAjax("GET","php/contenthandler.php?module=admin&command=isUserAlreadyLoggedIn",null,handleTestForLoggedIn,null);
}
function handleTestForLoggedIn(answer) {
	if (answer != "YES") {
		setTimeout(function(){document.location.href = "index.html"},250);
	}
}
function isInt(value) {
    if(Math.floor(value) == value && $.isNumeric(value)) {
        return true;
    } else {
        return false;
    }
}

function isFloat(n){
    return Number(n) === n && n % 1 !== 0;
}

function roundtodigits(value, digits) {
        value = parseFloat(value);
        if (!value) return 0;
        var factor = Math.pow(10,digits);
        return Math.round(value * factor) / factor;
} 

function getMillis() {
	var d = new Date();
	var n = d.getTime();
	return n;
}

function intervalCheckConnection(seconds) {
	checkConnection();
	var fetchTimer = setInterval(function() {
	    checkConnection();
	}, seconds * 1000);
}

function checkConnection() {
	var img = new Image();
	img.onerror = function () {
		$(".connectionstatus").show();
	}
	img.onload = function () {
		$(".connectionstatus").hide();
	}
	img.src = "img/gray.png?t=" + (+new Date);
}

function createLabelWithTextField(labelid,displayedName,defaultText) {
	var text = '<div class="ui-field-contain">';
	text += '<label for="' + labelid + '">' + displayedName + '</label>';
	text += '<input type="text" id="' + labelid + '" value="" data-mini="true" placeholder="' + defaultText + '" style="background-color:white;color:black;" />';
	text += '</div>';
	return text;
}
function createLabelWithTextFieldWithValue(labelid,displayedName,content) {
	var text = '<div class="ui-field-contain">';
	text += '<label for="' + labelid + '">' + displayedName + '</label>';
	text += '<input type="text" id="' + labelid + '" data-mini="true" value="' + content + '" style="background-color:white;color:black;" />';
	text += '</div>';
	return text;
}

function createLabelWithTextArea(labelid,displayedName) {
	var text = '<div class="ui-field-contain">';
	text += '<label for="' + labelid + '">' + displayedName + '</label>';
	text += '<textarea id="' + labelid + '" name="' + labelid + '" cols="40" rows="8" style="background-color:white;color:black;"></textarea>';
	text += '</div>';
	return text;
}
function createLabelWithTextAreaWithValue(labelid,displayedName,content) {
	var text = '<div class="ui-field-contain">';
	text += '<label for="' + labelid + '">' + displayedName + '</label>';
	text += '<textarea id="' + labelid + '" name="' + labelid + '" cols="40" rows="8" style="background-color:white;color:black;">';
	text += content;
	text += '</textarea>';
	text += '</div>';
	return text;
}
function createLabelWithOption(prefix,id,aLabel,displayedName,allValues,theValue) {
	var labelid = id;
	if ((prefix != "") || (aLabel != "")) {
		labelid = prefix + aLabel + "_" + id;
	}
	var text = '<div class="ui-field-contain">';
	text += '<label for="' + labelid + '">' + displayedName + '</label>';
	
	text += '<select name="' + labelid + '" id="' + labelid + '" data-theme="f">';
	for (var i=0;i<allValues.length;i++) {
		var aValue = allValues[i];
		if (aValue.id == theValue) {
			text += '<option value="' + aValue.id + '" selected>' + aValue.text + '</option>';
		} else {
			text += '<option value="' + aValue.id + '" >' + aValue.text + '</option>';
		}
	}

	text += '</select></div>';

	return text;
}