function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
	var elem = document.getElementById(id);
	//alert('elem='+elem);
	var object = elem.style; 
	object.opacity = (opacity / 101);
	object.MozOpacity = (opacity / 101);
	object.KhtmlOpacity = (opacity / 101);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec);
	} else {
		opacity(id, 100, 0, millisec);
	}
}

function blendimage(divid, imageid, imagefile, millisec) {
	var speed = Math.round(millisec / 100);
	var timer = 0;
	
	//set the current image as background
	document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";
	
	//make image transparent
	changeOpac(0, imageid);
	
	//make new image
	document.getElementById(imageid).src = imagefile;

	//fade in image
	for(i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
		timer++;
	}
}

function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}
var t, t1, t2;
var c = 0;
var messages = new Array();
messages[0]='Lose a friendly wager?';
messages[1]='Owe someone a beer?';
messages[2]='Birthday?';
messages[3]='Your team win?<br/>THEIR team win?';
messages[4]='Engagment? Divorce?';
messages[5]='Someone get a hole in one?';
messages[6]='Someone get promoted?';
messages[7]='Someone hook up?<br/>Someone get dumped?';
messages[8]='Find someone from school?';
//messages[4]='without even being there!';
function animate_header(){
	var elem = document.getElementById('heading');
	if(c < 4){
		c = c+1;
		random_num = (Math.round((Math.random()*(messages.length-1))))		
		elem.innerHTML = messages[random_num];
		/*
		if(c >= messages.length) c = 1;	
		elem.innerHTML = messages[c];
		*/
		t = setTimeout("animate_header()", 3000);
	}else{
		elem.innerHTML = "Buy someone a beer...<br/>without even being there!";
	}

		
}