function reservation_onsubmit() {
var msg	=""

if (document.formres.nametxt.value ==""){ 
		msg=msg+"please enter your name\n"
	}
if (document.formres.addresstxt.value==""){
	msg=msg+"please enter your adress\n" 
	}
if (document.formres.ziptxt.value==""){
	msg=msg+"please enter you phonenumber\n" 
	}
	
if (document.formres.citytxt.value==""){
	msg=msg+"please enter your city\n" 
	}
	
if (document.formres.countrytxt.value==""){
	msg=msg+"please enter your country\n" 
	}
		
if (document.formres.mailtxt.value==""){
	msg=msg+"please enter your e-mail adress\n" 
	}

if (msg !=""){
	alert(msg)
	return false;
		}
else
{
	document.formres.method="post"
	document.formres.action="sendmail.php" //name der seite die aufgerufen werden soll
	document.formres.submit()
}
}
		
// -->