// JavaScript Document

// ------------------------------------------------------------------------------
// getObjsByClass
// ------------------------------------------------------------------------------
function getObjsByClass(c,t){
	var x = 0;
	var objs_class = new Array;
	var objs=document.getElementsByTagName(t);
	for (var i=0;i<objs.length;i++) if (objs[i].className==c) objs_class[x++] = objs[i];
	return objs_class;
}

// ------------------------------------------------------------------------------
// getObjByID
// ------------------------------------------------------------------------------
function getObjByID(id) {
	var o = document.getElementById(id);
	o.s = document.layers ? o : o.style;
	return o;
}

// ------------------------------------------------------------------------------
// addLoadEvent
// ------------------------------------------------------------------------------
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
	// alert("addLoadEvent set");
  } else {
    // alert("addLoadEvent add");
	window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

// ------------------------------------------------------------------------------
// goto_url
// ------------------------------------------------------------------------------
function goto_url(url){ 
	parent.location = url;
}

// ------------------------------------------------------------------------------
// checkRequiredFields - Newsletter
// ------------------------------------------------------------------------------
function checkFields(input,requiredFields,fieldNames){
    var fieldCheck   = true;
	var mailCheck    = true;
    var message = "\nUm Sie für den GenaU Newsletter zu registrieren benötigen wir folgende Angaben:\n\n\t";
	
    for(var fieldNum=0; fieldNum < requiredFields.length; fieldNum++) {
        // Check emptiness
		if ((input.elements[requiredFields[fieldNum]].value == "") ||
            (input.elements[requiredFields[fieldNum]].value == " ")) {

            message += fieldNames[fieldNum] + "\n\t";
            fieldCheck = false;
        // check email
		} else if (requiredFields[fieldNum] == "xxx_email_xxx"){
			mailCheck = check_email(input.elements[requiredFields[fieldNum]].value);
		}
    }
	
	if (fieldCheck) message = "";
	if (!mailCheck) message = "Bitte tragen Sie eine gültige E-Mail-Adresse ein."
	
    if (fieldCheck && mailCheck) return true;
    else {
        alert(message);
        return false;
    }
}

// ------------------------------------------------------------------------------
// check_email
// ------------------------------------------------------------------------------
function check_email(s) {
 var a = false;
 var res = false;
 if(typeof(RegExp) == 'function'){
 	var b = new RegExp('abc');
  	if(b.test('abc') == true){a = true;}
 }
 if(a == true){
  	reg = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)'+
                   	 '(\\@)([a-zA-Z0-9\\-\\.]+)'+
                     '(\\.)([a-zA-Z]{2,4})$');
  	res = (reg.test(s));
 } else {
 	res = (s.search('@') >= 1 &&
    	s.lastIndexOf('.') > s.search('@') &&
    	s.lastIndexOf('.') >= s.length-10)
 }
 return(res);
}

// ------------------------------------------------------------------------------
// MM
// ------------------------------------------------------------------------------
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}