/* *** Footer Position ändern *** */
// Footer Positionierung //
function getWindowWidth() {
	var windowWidth = 0;
	if (typeof(window.innerWidth) == 'number') {
		windowWidth = window.innerWidth;
	}
	else {
		if (document.documentElement && document.documentElement.clientWidth) {
			windowWidth = document.documentElement.clientWidth;
		}
		else {
			if (document.body && document.body.clientWidth) {
				windowWidth = document.body.clientWidth;
			}
		}
	}
	return windowWidth;
}
function setFooter() {
	if (document.getElementById) {
		var windowWidth = getWindowWidth();
		if (windowWidth > 0) {
			var footerElement = document.getElementById('footer');
			var footerWidth  = footerElement.offsetWidth;
			/*var footerLang = document.getElementById('footerLang');*/
			/*var footerLangWidth  = footerLang.offsetWidth;*/
			if (windowWidth <= 950) {
				footerElement.style.bottom = '15px';
				/*footerLang.style.bottom = '15px';*/
			}
			else {
				footerElement.style.bottom = '0px';
				/*footerLang.style.bottom = '0px';*/
			}
		}
	}
}
 
// Footer platzierung
window.onresize=setFooter;
/*****************************************************/


/* *** Bild austauschen (Mouseover) *** */
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];}}
}

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];}
}


/* *** Bild austauschen NEU (Mouseover) *** */
function imgSwap(oImg)
{
   var strOver  = "_over"    // image to be used with mouse over
   var strOff = "_out"     // normal image
   var strImg = oImg.src
   if (strImg.indexOf(strOver) != -1) 
      oImg.src = strImg.replace(strOver,strOff)
   else
      oImg.src = strImg.replace(strOff,strOver)
}

function formshowhide(id)
{
	if (id == 4)
	{
		if(document.getElementById('rbyes').checked)
		{
			document.getElementById('wie_oft_title').style.visibility = "visible";
			document.getElementById('wie_oft').style.visibility = "visible";
		}
		else
		{
			document.getElementById('wie_oft_title').style.visibility = "hidden";
			document.getElementById('wie_oft').style.visibility = "hidden";
		}
	}
	if (id == 7)
	{
		if(document.getElementById('rbno7').checked)
		{
			document.getElementById('tag_7ta').style.visibility = "visible";
		}
		else
		{
			document.getElementById('tag_7ta').style.visibility = "hidden";
		}
	}
}

function checkForm()
{
    var form = document.forms['formFragebogen'];
    with (form)
    {
        if ( elements['f_name'].value == ''){
            alert('Bitte geben Sie Ihren Namen und Vornamen an. ');
            return false;
        } else if ( elements['f_vorname'].value == '' ){
            alert('Bitte geben Sie Ihren Namen und Vornamen an. '); 
            return false;
        } else if ( elements['f_anrede'].value == '0' ){
            alert('Bitte wählen Sie eine Anrede! '); 
            return false;
        }
        else
            form.submit();
    }
    return false;
}