function checkform_en(){
	with (document.buchung_en){
						
		var validCharText = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZÄÖÜäöüß.- "
		var validCharNum = "0123456789.:-"
				
		if(!name.value){
			alert("Please insert your name!");
			name.focus();
			return false;
		}
				
		if(!vorname.value){
			alert("Please insert your first name!");
			vorname.focus();
			return false;
		}
				
		if(!strasse.value){
			alert("Please insert your adress!");
			strasse.focus();
			return false;
		}
				
		if(!plz.value){
			alert("Please insert your zip code!");
			plz.focus();
			return false;
		}
				
		if(!ort.value){
			alert("Please insert your town!");
			ort.focus();
			return false;
		}
				
		if(!telefon.value){
			alert("Please insert your telephone number!");
			telefon.focus();
			return false;
		}
				
		if(!email.value){
			alert("Please insert your e-mai-adress!");
			email.focus();
			return false;
		}
				
		return true;
	}
}