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 swapImage(element, newimage) {
	var oldsrc = element.src
	element.src = newimage
	if (!element.onmouseout)
		element.onmouseout = function (event) { swapImage(this, oldsrc); };
}

// 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, '');
}

//checkEmail - needed for forms
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 && span.firstChild) {
			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);
}


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";
	fenster = window.open(url, 'win', attrib);
	return false;
}

function CheckSearch(form){
	if(form.saddr.value == "") {
		alert("Startadresse fehlt!");
		form.saddr.focus();
		return false;
	} else {    		
		popup('http://maps.google.de/maps?f=d&hl=de', 'TYP1', 'CENTER', 800, 600)		
	}
}



/*BO Navigation Effekt*/

window.addEvent('domready', function() {
	if($('nav'))
		initNavSliders();
	else
		setTimeout('initNavSliders()', 100);
});

window.addEvent('load', function() {
	navSliders();
});

function initNavSliders()
{
	if(!$('startpage'))
	{
		if(window.ie6) {
			$('nav').effects({}).set({'opacity':[0.9]});
		}

		var active = $$('#nav li.active ul');

		if(!active[0])
			active = $$('#nav li.activenode ul');

		if(active.length > 0) {
			active[0].style.height = '0px';
			active[0].style.overflow = 'hidden';
			var effect = active[0].effects( {
				wait: false,
				duration: 1000,
				transition: Fx.Transitions.Quad.easeInOut
			}).set({height: '0'});
			var children = $$('#nav li.active ul a');
			if(children.length == 0)
				children = $$('#nav li.activenode ul a');

			var childcount = 0;
			children.each(function(el, i) {
				if(el.innerHTML != "" && el.parentNode.parentNode.parentNode.parentNode.id == 'nav')
					childcount++;
			});

			var newheight = (childcount * 21) + 1;
			if(Cookie.get('lastactiveid') == active[0].parentNode.id)
				effect.set({'height':newheight});
		}
		else {
			Cookie.set('lastactiveid', 'startpage', { path: '/'});
		}
	}
}

function navSliders()
{
	if(!$('startpage'))
	{
		var active = $$('#nav li.active ul');

		if(!active[0])
			active = $$('#nav li.activenode ul');

		if(active.length > 0) {
			var effect = active[0].effects( {
				wait: false,
				duration: 1000,
				transition: Fx.Transitions.Quad.easeInOut
			}).set({height: '0'});
			var children = $$('#nav li.active ul a');
			if(children.length == 0)
				children = $$('#nav li.activenode ul a');

			var childcount = 0;
			children.each(function(el, i) {
				if(el.innerHTML != "" && el.parentNode.parentNode.parentNode.parentNode.id == 'nav')
					childcount++;
			});

			var newheight = (childcount * 21) + 1;
			if(Cookie.get('lastactiveid') != active[0].parentNode.id)
				effect.start({'height':[0,newheight]});
			else
				effect.set({'height':newheight});

			Cookie.set('lastactiveid', active[0].parentNode.id, { path: '/'});
		}
	}
	else
	{
		Cookie.set('lastactiveid', 'startpage', { path: '/'});
	}
}

/*EO Navigation Effekt*/

function checkResolution() {

	if (document.getElementById('startpage')) {
		var adresse =document.getElementById("adressen");
		if (adresse){
			if (document.body.offsetHeight < 655) {adresse.className="small"} else {adresse.className=""}
		}
	}

	navi_hoehe = document.getElementById('navheight');
	if (document.body.offsetHeight > 610) {
		navi_hoehe.className = 'big';
	} else {
		navi_hoehe.className = '';
	}
}

window.addEvent('domready', function() { checkResolution(); });
window.onresize = checkResolution;