// Sichbarkeit von elementen an-/ausschalten
/* alte Funktion
function toggle(control){
	var elem = document.getElementById(control);
	if(elem.style.display == "none") {
		elem.style.display = "block";
	} else {
		elem.style.display = "none";
	}
}
*/
function toggle(control){
	if($(control).getStyle('display') == 'none') {
		$(control).setStyle({ display: 'block' });
	} else {
		$(control).setStyle({ display: 'none' });
	}
}

// passwortfeld switchen in mini-login
function vippwdswitch(q){
  if (q){
	  document.getElementById('vippwdtext').style.display="none";
	  document.getElementById('vippwd').style.display="inline";
	  document.getElementById('vippwd').value='';
	  document.getElementById('vippwd').focus();
  } else {
	  document.getElementById('vippwd').style.display="none";
	  document.getElementById('vippwdtext').style.display="inline";
  }
}

// hoehe der randspalten anpassen
function adjustCSS(elementid) {
	var myElementId = elementid;
	var htmlheight = document.body.parentNode.scrollHeight;
	document.getElementById(myElementId).style.height = htmlheight+'px';
}

// email adresse validieren
function emailCheck (emailStr) {
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");

	var matchArray=emailStr.match(emailPat);
	
	if (matchArray==null) {
		alert("E-Mail Adresse ungueltig (bitte @ und . pruefen)");
		return false;
	}
	
	var user=matchArray[1];
	var domain=matchArray[2];

	if (user.match(userPat)==null) {
		alert("E-Mail Adresse ungueltig");
		return false;
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				alert("E-Mail Adresse ungueltig");
				return false;
			}
		}
		return true;
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		alert("E-Mail Adresse ungueltig");
		return false;
	}

	var atomPat=new RegExp(atom,"g");
	var domArr=domain.match(atomPat);
	var len=domArr.length;
	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>4) {
		alert("Domainname der E-Mail Adresse ungueltig");
		return false;
	}

	if (len<2) {
		var errStr="E-Mail Adresse ungueltig";
		alert(errStr);
		return false;
	}

	return true;
}