function submitform() {
	//enter something
	document.f.t.value = trim(document.f.t.value);
	if (document.f.t.value == "") {
		alert("Please enter some text or a website.");
		return false;
		}
	//enter something long enough
	var z = document.f.t.value.toLowerCase();
	if (z.length < 25 && z.substring(0,7) != "http://" && z.substring(0,4) != "www.") {
		alert("Please enter something longer than this. More text is needed to make an accurate language identification");
		return false;
		}
	//use POST for long input
	if (z.length>200) {
		document.f.method = "post";
		}		
	//go
	document.f.submit();
	}
	
function direction() {
	if (document.f.t.dir == "ltr") {
		document.f.t.dir = "rtl";
		}
	else {
		document.f.t.dir = "ltr";
		}
	}