function validateForm() {
var val,errors='';
val = MM_findObj("question_text");
if (val.value == "") { errors+='Geben Sie bitte an Ihre Frage.\n'; }
val = MM_findObj("e-mail");
if (val.value == "") {errors+='Geben Sie bitte an Ihr E-Mail.\n'; }
else { if (val.value.indexOf('@')<1) { errors+='Ihr E-Mail es muss die E-Mail Adresse enthalten \n'; }}
if (errors) { alert(errors);}
document.returnValue = (errors == '');
}

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 NewWin(url, xsize, ysize, name, type)
{
	var	strWFeatures, openedW;
	if (type!= null)
	{
		strWFeatures  = 'toolbar=1,location=0,directories=0,status=0,menubar=1,resizable=1,scrollbars=1,width=' + xsize + ',height=' + ysize + ',left=0,top=0';		
	}
	else
	{
		strWFeatures  = 'toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=1,scrollbars=1,width=' + xsize + ',height=' + ysize + ',left=0,top=0';		
	}
	if (name!= null)
	{
		openedW = window.open(url, name, strWFeatures);
	}
	else
	{
		openedW = window.open(url, "NewWin", strWFeatures);
	}
	openedW.moveTo(0, 0);
	openedW.focus();			
}
function checkNum()
{
  if(window.event.keyCode >= 48 && window.event.keyCode  <= 57 || window.event.keyCode == 8)
  {
	return true;
  }
  else
  {
  	return false;
  }
}
function checkNumPlus()
{
  if(window.event.keyCode >= 48 && window.event.keyCode  <= 57 || window.event.keyCode == 8 || window.event.keyCode >= 43 && window.event.keyCode <= 44)
  { return true; } else { return false; }
}