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_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_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 showLayer(id) {
  var lyr = getElemRefs(id);
  if (lyr && lyr.css) lyr.css.visibility = "visible";
}

function hideLayer(id) {
  var lyr = getElemRefs(id);
  if (lyr && lyr.css) lyr.css.visibility = "hidden";
}

function getElemRefs(id) {
	var el = (document.getElementById)? document.getElementById(id): (document.all)? document.all[id]: (document.layers)? document.layers[id]: null;
	if (el) el.css = (el.style)? el.style: el;
	return el;
}

function winopen(mylink,mytitel)
{
	window.open('extended.php?content=' + mylink,mytitel,'width=620,height=600,toolbar=0,scrollbars=1,status=0,resizable=1');
}

function printwindow(mylink,mytitel)
{
	window.open('print.php?' + mylink,mytitel,'width=620,height=600,toolbar=0,scrollbars=1,status=0,resizable=1');
}

function checkFormMonatsrate(myform)
{
 if(myform.darlehen.value == "" || myform.darlehen.value == 0) {
  alert("Bitte geben Sie eine Darlehenssumme an.");
	myform.darlehen.focus();
	return false;
 } else {
  return true;
 }
}

function checkFormWieviel(myform)
{
 if(myform.kaltmiete.value == "") {
  alert("Bitte geben Sie Ihre derzeitige Kaltmiete an.");
	myform.kaltmiete.focus();
	return false;
 } else if(myform.finanzierungskapital.value == "") {
  alert("Bitte geben Sie Ihr Finanzierungskapital an.");
	myform.finanzierungskapital.focus();
	return false;
 } else if(myform.eigenkapital.value == "") {
  alert("Bitte geben Sie Ihr Eigenkapital an.");
	myform.eigenkapital.focus();
	return false;
 } else {
  return true;
 }
}