var imgs = new Array(
			['hom1','hom2'],
			['mee1','mee2'],
			['inv1','inv2'],
			['mar1','mar2'],
			['per1','per2'],
			['let1','let2'],
			['leg1','leg2']
			);
var n=1
for(var i=0; i<imgs.length; i++) {
	this['off'+n] = new Image();
	this['off'+n].src = 'images/'+imgs[i][0]+'.gif';
	this['ovr'+n] = new Image();
	this['ovr'+n].src = 'images/'+imgs[i][1]+'.gif';
	n++;
}