function initDoc() {
	copyAltToTitle();
}

function copyAltToTitle () {
	var imgs = document.images;
	var i = imgs.length;
	while (i--) {
		var img = imgs[i];
		img.title = img.alt;
	}
}
function rollover (btn,src) {
	var img = document.getElementById(btn);
	old_over_src = img.src;
	img.src = src;
	current_over_button = img;
}
function rollout () {
	current_over_button.src = old_over_src;
}

function mortCalcWin(URL){
	calcWin = window.open(URL,'MortCalcWin',
	'width=500,height=440,toolbar=0,directories=0,menubar=0,status=0,resizable=0,location=0,scrollbars=1,copyhistory=0');
}