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];}
}

function MeWindowOpen(theURL,winName,features, myWidth, myHeight, isCenter) { //v3.0
  if(window.screen)if(isCenter)if(isCenter=="true"){
    var myLeft = (screen.width-myWidth)/2.7;
    var myTop = (screen.height-myHeight)/2.7;
    features+=(features!='')?',':'';
    features+=',left='+myLeft+',top='+myTop;
  }
  window.open(theURL,winName,features+((features!='')?',':'')+'width='+myWidth+',height='+myHeight);
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function checkRadios() {
 var el = document.forms[0].elements;
 for(var i = 0 ; i < el.length ; ++i) {
  if(el[i].type == "radio") {
   var radiogroup = el[el[i].name]; // get the whole set of radio buttons.
   var itemchecked = false;
   for(var j = 0 ; j < radiogroup.length ; ++j) {
    if(radiogroup[j].checked) {
	 itemchecked = true;
	 break;
	}
   }
   if(!itemchecked) { 
    alert("Bitte klicke einen der Buttons für "+el[i].name+".");
    if(el[i].focus)
     el[i].focus();
	return false;
   }
  }
 }
 return true;
} 

function validate_form ( )
{
    valid = true;

    if ( document.survey_form.firstname.value == "" )
    {
        alert ( "Please fill in your Firstname." );
        valid = false;
    }
	
	    if ( document.survey_form.lastname.value == "" )
    {
        alert ( "Please fill in your Lastname." );
        valid = false;
    }
	
	    if ( document.survey_form.company.value == "" )
    {
        alert ( "Please fill in your Company Name." );
        valid = false;
    }
	
    if ( document.survey_form.address.value == "" )
    {
        alert ( "Please fill in your Address." );
        valid = false;
    }
	
    if ( document.survey_form.city.value == "" )
    {
        alert ( "Please fill in your City." );
        valid = false;
    }
	
    if ( document.survey_form.zip.value == "" )
    {
        alert ( "Please fill in your Postcode." );
        valid = false;
    }	
	
    if ( document.survey_form.prefix.selectedIndex == 0 )
    {
        alert ( "Please select your Name Prefix." );
        valid = false;
    }	
	
    if ( document.survey_form.country.selectedIndex == 0 )
    {
        alert ( "Please select your Country." );
        valid = false;
    }

    return valid;
}

function validate_form2 ( )
{
    valid = true;

    if ( document.survey_form.firstname.value == "" )
    {
        alert ( "Bitte geben Sie Ihren Vornamen an." );
        valid = false;
    }
	
	    if ( document.survey_form.lastname.value == "" )
    {
        alert ( "Bitte geben Sie Ihren Nachnamen an." );
        valid = false;
    }
	
	    if ( document.survey_form.company.value == "" )
    {
        alert ( "Bitte geben Sie Ihren Firmennamen an." );
        valid = false;
    }
	
    if ( document.survey_form.address.value == "" )
    {
        alert ( "Bitte geben Sie Ihre Strasse an." );
        valid = false;
    }
	
    if ( document.survey_form.city.value == "" )
    {
        alert ( "Bitte geben Sie Ihren Ort an." );
        valid = false;
    }
	
    if ( document.survey_form.zip.value == "" )
    {
        alert ( "Bitte geben Sie Ihre Postleitzahl an." );
        valid = false;
    }	
	
    if ( document.survey_form.prefix.selectedIndex == 0 )
    {
        alert ( "Bitte wählen Sie Ihre Anrede." );
        valid = false;
    }	
	
    if ( document.survey_form.country.selectedIndex == 0 )
    {
        alert ( "Bitte wählen Sie Ihr Land." );
        valid = false;
    }

    return valid;
}