var imgs = new Array(
			['navbar_01','navbarovr_01'],
			['navbar_02','navbarovr_02'],
			['navbar_03','navbarovr_03'],
			['navbar_04','navbarovr_04'],
			['navbar_05','navbarovr_05'],
			['navbar_06','navbarovr_06']
			);
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++;
}