var timer;
var aNavim = ["basic", "entry", "literarybasic", "college", "picturebasic", "short"];

function showMenu (targetID) {
	stopTimeout();
	for (var i = 0; i < aNavim.length; i++) {
		if (aNavim[i] != targetID) {
			document.getElementById(aNavim[i]).style.display = 'none';
		} else {
			document.getElementById(targetID).style.display = 'block';
		}
	}
}


function startTimeout() {
	timer = setTimeout("showMenu('" + defMenu + "')", 1400);
}

function stopTimeout() {
	clearTimeout(timer);
}

function rollover(name,state){
		var imgsrc ="../image/"+name + "_" + state + ".jpg";
		document[name].src = imgsrc;
}


function roll(name,state){
		var imgsrc ="image/"+name + "_" + state + ".jpg";
		document[name].src = imgsrc;
}