/* begin Page */
var artEventHelper = {
  'bind' : function (obj, evt, fn) {
    if (obj.addEventListener)
      obj.addEventListener(evt, fn, false);
    else if (obj.attachEvent)
      obj.attachEvent('on' + evt, fn);
    else
      obj['on' + evt] = fn;
  }
};

var artLoadEvent = (function() {
  var userAgent = navigator.userAgent.toLowerCase();
  var browser = {
    version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
    safari: /webkit/.test(userAgent),
    opera: /opera/.test(userAgent),
    msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
    mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent)
  };

  var list = [];

  var done = false;
  var ready = function () {
    if (done) return;
    done = true;
    for (var i = 0; i < list.length; i++)
      list[i]();
  };
  
  if (document.addEventListener && !browser.opera)
    document.addEventListener('DOMContentLoaded', ready, false);
  
  if (browser.msie && window == top) {
    (function () {
      try {
        document.documentElement.doScroll('left');
      } catch (e) {
        setTimeout(arguments.callee, 10);
        return;
      }
      ready();
    })();
  }
  
  if (browser.opera) {
    document.addEventListener('DOMContentLoaded', function () {
      for (var i = 0; i < document.styleSheets.length; i++) {
        if (document.styleSheets[i].disabled) {
          setTimeout(arguments.callee, 10);
          return;
        }
      }
      ready();
    }, false);
  }
  
  if (browser.safari) {
    var numStyles;
    (function(){
      if (document.readyState != 'loaded' && document.readyState != 'complete') {
        setTimeout(arguments.callee, 10);
        return;
      }
      if ('undefined' == typeof numStyles) {
        numStyles = document.getElementsByTagName('style').length;
        var links = document.getElementsByTagName('link');
        for (var i = 0; i < links.length; i++) {
          numStyles += (links[i].getAttribute('rel') == 'stylesheet') ? 1 : 0;
        }
        if (document.styleSheets.length != numStyles) {
          setTimeout(arguments.callee, 0);
          return;
        }
      }
      ready();
    })();
  }

  artEventHelper.bind(window, 'load', ready);

  return ({
    add: function(f) {
      list.push(f);
    }
  })
})();

(function () {
  // fix ie blinking
  var m = document.uniqueID && document.compatMode && !window.XMLHttpRequest && document.execCommand;
  try{ if(!!m) { m("BackgroundImageCache", false, true); } }
  catch(oh){};
})();

function xGetElementsByClassName(clsName, parentEle, tagName) {
  var elements = null;
  var found = [];
  var slash = String.fromCharCode(92);
  var re = new RegExp(slash + "b" + clsName + slash + "b");
  if (!parentEle) parentEle = document;
  if (!tagName) tagName = '*';
  elements = parentEle.getElementsByTagName(tagName);
  if (elements) {
    for (var i = 0; i < elements.length; ++i) {
      if (elements[i].className.search(re) != -1) {
        found[found.length] = elements[i];
      }
    }
  }
  return found;
}

var styleUrlCached = null;
function GetStyleUrl() {
  if (null == styleUrlCached) {
    var ns;
    styleUrlCached = '';
    ns = document.getElementsByTagName('link');
    for (var i = 0; i < ns.length; i++) {
      var l = ns[i];
      if (l.href && /style\.css$/.test(l.href))
        return styleUrlCached = l.href.replace('style.css','');
    }
	ns = document.getElementsByTagName('style');
	for (var i = 0; i < ns.length; i++) {
      var matches = new RegExp('import\\s+"([^"]+\\/)style\\.css"').exec(ns[i].innerHTML);
      if (matches.length > 0)
        return styleUrlCached = matches[1];
    }
  }
  return styleUrlCached;
}


function artButtonSetupJsHover(btn)
{
  artEventHelper.bind(btn, 'mouseover', function() {
    var spans = btn.getElementsByTagName("span");
    if (spans.length > 0)
      spans[0].className += " hover";
  });
  artEventHelper.bind(btn, 'mouseout', function() {
    var spans = btn.getElementsByTagName("span");
    if (spans.length > 0)
      spans[0].className = spans[0].className.replace(/hover/, "");
  });
}

function artButtonsSetupJsHover() {
  var elements = xGetElementsByClassName("btn", document, "span");
  for (var i = 0; i < elements.length; i++) {
    if (!elements[i].tagName) continue;
    artButtonSetupJsHover(elements[i].parentNode);
  }
}
artLoadEvent.add(artButtonsSetupJsHover);

/* end Page */

/* email displaying */
function displayEmail(name, domain) {	
	var at = "@";	
	var address = name + at + domain;
	document.write("<a href=" + "mail" + "to:" + name + at + domain + ">" + address + "</a> ");
}

function trim(str)
{
   return str.replace(/^\s+|\s+$/g,'');
}

function emailValid(str)
{
   var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;
   return regex.test(str);
}

/* email registration form */
function Validate()
{
		 var cname, cfirstname, cemail, cemail_confirmation;
		 with(window.document.registration_form)
		 {
				cname = name;
				cfirstname = firstname;
				cemail = email;
				cemail_confirmation = email_confirmation;				
		 }
					
    if (trim(cname.value) == '') 
    {
        alert('Bitte Namen eingeben!');
				cname.focus();
        return false;
    }
		else if (trim(cfirstname.value) == '') 
    {
        alert('Bitte Vornamen eingeben!');
				cfirstname.focus();
        return false;
    }
		else if (trim(cemail.value) == '') 
    {
       alert('Bitte eine gültige Email-Adresse eingeben!');
			 cemail.focus();
       return false;
    }    
    else if (!emailValid(trim(cemail.value))) 
    {
       alert('Bitte eine gültige Email-Adresse eingeben!');
			 cemail.focus();
       return false;
    }
		else if (trim(cemail_confirmation.value) == '') 
    {
       alert('Bitte Email-Adresse zur Bestätigung erneut eingeben!');
			 cemail_confirmation.focus();
       return false;
    }    
    else if (email != 
    email_confirmation) 
    {
        alert("Die Email-Adressen sind nicht identisch!");
        return false;
    } 
	  else
    {
				cname.value = trim(cname.value);
				cfirstname.value = trim(cfirstname.value);
				cemail.value = trim(cemail.value);				
				return true;
   }
}