<!--


function shiftHomeOpacity(id,dowhen,max) { 
    //if an element is invisible, make it visible, else make it invisible 
    if(dowhen == 'start') {
        opacity(id, 0, max, 1000); 
    } else { 
        opacity(id, max, 0, 1000); 
    } 
}


var whichIsOn = 1;
var homeTime;

function changeHome() {
	endIt();
	if(whichIsOn == 4) {
		whichIsOn = 1;
	} else {
		whichIsOn = whichIsOn + 1;
	}
	startIt();
}

function changeEarly(changenum) {
	if(whichIsOn != changenum) {
		clearTimeout(homeTime);
		endIt();
		whichIsOn = changenum;
		startIt();
	}
}

function changeNext() {
	clearTimeout(homeTime);
	endIt();
	if(whichIsOn == 4) {
		whichIsOn = 1;
	} else {
		whichIsOn = whichIsOn + 1;
	}
	startIt();
}

function changePrev() {
	clearTimeout(homeTime);
	endIt();
	if(whichIsOn == 1) {
		whichIsOn = 4;
	} else {
		whichIsOn = whichIsOn - 1;
	}
	startIt();
}

function startIt() {
	shiftHomeOpacity("home"+whichIsOn, "start",100);
	document.getElementById("slide"+whichIsOn+"num").className = "slidenumon";
	homeTime = setTimeout("changeHome()",6000);
}

function endIt() {
	shiftHomeOpacity("home"+whichIsOn, "end",100);
	document.getElementById("slide"+whichIsOn+"num").className = "slidenum";
}

// -->