var extWindow= false;

function external(url){
	if(extWindow && !extWindow.closed) extWindow.location.href= url;
	else window.open(url, "extWindow", "dependent=yes,hotkeys=yes,location=yes,menubar=yes,resizable=yes,scrollbars=yes,status=yes,toolbar=yes");
	extWindow.focus();
}

function historyback(){
	if(!home) window.history.back();
}
	
function submitForm(form){
	if(form){
		if(form.subject && form.subject.value || form.message && form.message.value || form.text && form.text.value){
			var email= false;

			if(form.reply && (email= form.reply.value) || form.email && (email= form.email.value)){
				if(email && /(\w+[\.\-]?\w+)+?@(\w+[\.\-]?\w+)+?\.[a-zA-Z]{2,4}/.test(email) || !email) form.submit();
				else alert("Soll'n das für ne Email sein?!");
			}
			else form.submit();
		}
		else alert("Heute nich so gesprächig, hm?");
	}
}