var imgs = new Array(
			['hom1','hom2'],
			['abo1','abo2'],
			['fini1','fini2'],
			['inv1','inv2'],
			['ris1','ris2'],
			['stra1','stra2'],
			['eme1','eme2'],
			['fin1','fin2'],
			['mon1','mon2'],
			['new1','new2'],
			['con1','con2'],
			['adV_1','adV_2']
			);
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++;
}