// Adds an eventlistner to object
function addEvent(object, type, func) {
	if(object.addEventListener)
		object.addEventListener(type, func, false);
	else if (object.attachEvent)
		object.attachEvent("on" + type, func);
}

// Removes an eventlistner from object
function removeEvent(object, type, func) {
	if(object.removeEventListener)
		object.removeEventListener(type, func, false);
	else if (object.detachEvent)
		object.detachEvent("on" + type, func);
}

// Class for requesting updates periodically using ajax
function StatusUpdate(_url, _frequency) {
	var request;
	var timer;
	var url = _url;
	var frequency = _frequency * 1000;
	var me = this;
	var callbacks = new Object();
	var updates = new Object();

	this.start = function() {
		if((!window.XMLHttpRequest && !window.ActiveXObject) || frequency == 0) return false;

		timer = setTimeout(me.doUpdate, frequency);
	}

	this.stop = function() {
		clearTimeout(timer);

		request = null;
	}

	this.onUpdate = function(id, func) {
		callbacks[id] = func;
	}

	this.doUpdate = function() {
		if(request && request.readyState < 4) return;
		if(window.XMLHttpRequest) request = new XMLHttpRequest();
		if(window.ActiveXObject) request = new ActiveXObject("Microsoft.XMLHTTP");
		request.open("GET", url, true);
		request.onreadystatechange = function() {
			if(request.readyState < 4 || request.status != 200) return;
			var activeCallbacks = new Array();
			var regex = /\{(\w+)::([^\}]*)\}/g;

			while(result = regex.exec(request.responseText)) {
				var key = result[1];
				var value = result[2];
				if(defined(updates[key]) && updates[key] == value) continue;
				updates[key] = value;
				if(defined(callbacks[key])) activeCallbacks.push(callbacks[key]);
				setElementContent(key, value);
			}
			for(var i = 0; i < activeCallbacks.length; i++) { (activeCallbacks[i])(updates); }
			timer = setTimeout(me.doUpdate, frequency);
		}
		request.send("");
	}

	this.forceUpdate = function() {
		this.stop();
		this.doUpdate();
	}
}


// Suchfunktionen
function FocSrchTxt(o)
{
	if (o && o.value)
	{
		if (strNonSearchString != null && strNonSearchString != 'undefined' && o.value == strNonSearchString && !fEnteredText)
		{
			o.value = '';
		}
		else
		{
			o.select();
		}
		setSearchOnColor(o);
		fEnteredText=true;
	}
}
function FTrySearch(e, strFormName, index)
{

	fSearchFocus = false;

	var oSrchFrm = document.getElementById(strFormName);

	if ('undefined' != typeof(oSrchFrm) && null != oSrchFrm && SelectAction(oSrchFrm, index))
		{
		try {external.AutoCompleteSaveForm(oSrchFrm);} catch (err) {}
		oSrchFrm.submit();
		}

	if (e && e.stopPropagation)
		e.stopPropagation(); 

	return false;
}

function FEntTextbox(e, strFormName, index)
{
	if (e && 13 == e.keyCode)
		return FTrySearch(e, strFormName, index);

	return true;
}

function setNonSearchString(searchBox)
{
	if (searchBox != null && searchBox != 'undefined' && searchBox.value == '')
	{
		searchBox.value = strNonSearchString;
		setSearchOffColor(searchBox);
		fEnteredText = false;
	}
}

function setSearchOffColor(searchBox)
{
	searchBox.className = 'suche_box suche_BoxOffColor';
}

function setSearchOnColor(searchBox)
{
	searchBox.className = 'suche_box suche_BoxOnColor';
}
function FChkSrchTxt(wz)
{
	var ws=/^[\s]*$/;
	return wz&&!ws.test(wz);
}


function resizeSearchBox_XXX()
{
return;

	var input = document.getElementById('frmSearch_tbQueryStr');
	var container = document.getElementById('tdSearchBox');
	if (input != null && input != 'undefined' && container != null && container != 'undefined')
	{
		var conwidth = container.offsetWidth;
		//input.style.width = conwidth - 10 + 'px';

		if (input.value != strNonSearchString)
		{
			fEnteredText = true;
			setSearchOnColor(input);
		}
	}
}