var page = new Array('etc.html', 'howto.html', 'news.html');
function submitSubForm() {
	postAct();
	document.up.submit();

}
function setForm() {
	document.getElementById('upfile').disabled = true;
	document.getElementById('txt').disabled = true;
}
function selectForm (num) {
	var names = new Array("upfile", "uri", "txt");
	for (i = 0; i < 3; i++) {
		document.getElementById(names[i]).disabled = (i != num);
	}
	with (document.getElementById('txt')) {
	if (num == 2) {
		rows = 10;
		document.up.txt.focus();
		
	}
	else {
		rows = 1;
	}
	}
}
function postAct () {
document.getElementById('bar').style.visibility = 'visible';
document.getElementById('submitBtn').disabled = true;
}

function switchTab(num) {

for (i = 0; i < 3; i++ ) {

	with (document.getElementById('menu' + i).style) {
		if (i == num) backgroundImage = 'url(img/tab1.gif)';
		else backgroundImage = 'url(img/tab2.gif)';
	}
}
document.getElementById('display').style.height = '900px';
window.open(page[num], "display");

}