//Diverse Elemente bei kleiner Fenstergröße verändern
function check_resolution() {
	//array aus IDs die ausgeblendet werden sollen
	var array = new Array();
	var obj;

	if (document.body.offsetWidth < 995) {
		for(i = 0; i < array.length; i++) {
			obj = document.getElementById(array[i])
			if(obj)
				obj.style.display = 'none'
		}
	} else {
		for(i = 0; i < array.length; i++) {
			obj = document.getElementById(array[i])
			if(obj)
				obj.style.display = ''
		}
	}
}
window.onresize = window.onload = check_resolution;


function openHumor() {
	window.location = humorurl;
}



// Flash Startseite

var flashinstalled = 0;
var flashversion = 0;
MSDetect = "false";
if (navigator.plugins && navigator.plugins.length) {
	x = navigator.plugins["Shockwave Flash"];
	if (x)	{
		flashinstalled = 2;
		if (x.description) {
			y = x.description;
			flashversion = y.charAt(y.indexOf('.')-1);
		}
	} else {
		flashinstalled = 1;
	}

	if (navigator.plugins["Shockwave Flash 2.0"]) {
		flashinstalled = 2;
		flashversion = 2;
	}
} else if (navigator.mimeTypes && navigator.mimeTypes.length) {
	x = navigator.mimeTypes['application/x-shockwave-flash'];
	if (x && x.enabledPlugin) {
		flashinstalled = 2;
	} else {
		flashinstalled = 1;
	}
} else {
	MSDetect = "true";
}

function insertFlash(flash, x, y) {

	if (flashinstalled == '1') {
		document.getElementById('animation').getElementsByTagName('IMG')[0].style.display = 'block';
	} else {

		document.write('<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width=\"'+x+'\" height=\"'+y+'\" tabindex="1">\n');
		document.write('<param name=\"movie\" value=\"'+flash+'\" />\n');
		document.write('<param name=\"quality\" value=\"high\" />\n');
		document.write('<param name=\"wmode\" value=\"transparent\" />\n');
		document.write('<embed src=\"'+flash+'\" quality=\"high\" wmode=\"transparent\" pluginspage=\"http://www.macromedia.com/go/getflashplayer\" type=\"application/x-shockwave-flash\" width=\"'+x+'\" height=\"'+y+'\"></embed>\n');
		document.write('</object>\n');
	}
 }









function getAdr(prefix, postfix, text) {
        document.write('<a href="mailto:' + prefix + '@' + postfix + '">' + (text ? text.replace(/&quot;/g, '"').replace(/%EMAIL%/, prefix + '@' + postfix) : prefix + '@' + postfix) + '</a>');
}

function swapStartNav(element, newimage, element2, newimage2) {
	var oldsrc = element.src;
	var oldsrc2_tmp = document.getElementById(element2).getElementsByTagName('IMG');
	var oldsrc2 = oldsrc2_tmp[0].src;
	var element2_tmp = document.getElementById(element2).getElementsByTagName('IMG')[0];
	element.src = newimage
	element2_tmp.src = newimage2

	if (!element.onmouseout)
		element.onmouseout = function (event) { swapStartNav(this, oldsrc, element2, oldsrc2); };
}


function popup(url, typ, para1, width, height) {
	attrib = "";
	Y = (screen.height - width) / 2;
	X = (screen.width - height) / 2;
	X = Math.round(X);
	Y = Math.round(Y);
	if (para1 == 'CENTER') attrib += 'height=' + height + ',width=' + width + ',top=' + Y + ',left=' + X;
	if (typ == 'TYP1') attrib += ",scrollbars=no";
	if (typ == 'TYP2') attrib += ",scrollbars=yes";
	if (typ == 'TYP3') attrib += ",scrollbars=yes,menubar=yes";
	x = Math.random();
	fenster = window.open(url, 'win', attrib);
	return false;
}



/* BILDERGALERIE */

var active_ma = 0;

function ChangeActiveMA(id)
{
	active_ma = id
}

function ShowCoworker(id)
{
	for(i=0;i<Coworkers.length;i++)
	{
		document.getElementById('zahn_'+Coworkers[i]).style.display='none'
	}

	document.getElementById('zahn_'+Coworkers[id]).style.display='block'
}




/* FORMULAR VALIDIEREN */

// deletes leading and trailing spaces in a string - adds the function directly to the String Object, so that all strings inherit this method
String.prototype.trim = function() {
    return this.replace(/(^\s*)|(\s*$)/g, '');
}

function checkEmail(val) {
	if (val) {
		var usr = "([a-zA-Z0-9][a-zA-Z0-9_.-]*|\"([^\\\\\x80-\xff\015\012\"]|\\\\[^\x80-\xff])+\")";
		var domain = "([a-zA-Z0-9][a-zA-Z0-9._-]*\\.)*[a-zA-Z0-9][a-zA-Z0-9._-]*\\.[a-zA-Z]{2,5}";
		var regex = "^"+usr+"\@"+domain+"$";
		var myrxp = new RegExp(regex);
		var check = (myrxp.test(val));
		if (check!=true) {
			return false;
		}
		else {
			return true;
		}
	}
}

/*
validates formfields if they have a value or not
to check for other options do the following
specialfields = new Object();
specialfields.fieldname = new Object();
specialfields.fieldname.check1 = 'function_to_call,error_message';
specialfields.fieldname.check2 = 'second_function_to_call,second_error_message';
specialfields.another_fieldname = new Object();
specialfields.another_fieldname.check1 = 'function_to_call,error_message';
*/
function validateForm(form,specialfields) {
	var errors = new Array();
	var fields = form.getElementsByTagName('label');
	for (i = 0; i < fields.length; i++) {
		var span = fields[i].getElementsByTagName('span')[0];
		if (span) {
			var label = span.firstChild.data;
			label = label.trim();
			// if there is a '*' in the label - this indicates the inputfield has to be filled
			if (label.charAt(label.length - 1) == '*'){
                                label = label.substring(0, label.length - 1).trim();
				// get the inputfield
				var obj_input = fields[i].getElementsByTagName('input');
				if (!obj_input[0])
					obj_input = fields[i].getElementsByTagName('select');
				if (!obj_input[0])
					obj_input = fields[i].getElementsByTagName('textarea');

				// if there is an inputfield
				if (obj_input && obj_input[0]) {
					input = obj_input[0];
					error = false;
					
					// check if the inputfield has a value
					if (!input.value || input.value.trim().length==0) {
						error = true;
						errors.push(label + ' nicht eingegeben');
					}
					
					// check the inputfield for special things (email, ...)
					if (!error && specialfields[input.name]){
						specialfield = specialfields[input.name];
						for (check in specialfield){
							check_function = specialfield[check].split(',')[0];
							check_message = specialfield[check].split(',')[1];
							if (!eval(check_function)(input.value)){
								error = true;
								errors.push(label + ' ' + check_message);
							}
						}
					}
		            
					// on error give the label the className 'error' otherwise delete the className 'error' (if exists)
					if (error){
						className = fields[i].className;
						if (className.length>0){
							className = className + ' ';
						}
						fields[i].className = className + 'error';
					} else {
		            	className = fields[i].className;
		                if (className.indexOf('error')>-1){
							className = className.replace(' error', '');
							className = className.replace('error', '');
							fields[i].className = className;
						}
		            }
				}
			}
		}
	}
    return errors;
}

function showFormErrors (errors) {
	error_message = '';
	for (i=0;i<errors.length;i++){
		error_message += errors[i] + '\n';
	}
	alert(error_message);
}