var img = [];

img[0] = new Image(85,151);
img[0].src = '../images/button-home.png';
img[1] = new Image(85,160);
img[1].src = '../images/button-home-roll.png';
img[2] = new Image(85,151);
img[2].src = '../images/button-about.png';
img[3] = new Image(85,160);
img[3].src = '../images/button-about-roll.png';
img[4] = new Image(85,151);
img[4].src = '../images/button-services.png';
img[5] = new Image(85,160);
img[5].src = '../images/button-services-roll.png';
img[6] = new Image(85,151);
img[6].src = '../images/button-portfolio.png';
img[7] = new Image(85,160);
img[7].src = '../images/button-portfolio-roll.png';
img[8] = new Image(85,151);
img[8].src = '../images/button-clients.png';
img[9] = new Image(85,160);
img[9].src = '../images/button-clients-roll.png';
img[10] = new Image(85,151);
img[10].src = '../images/button-licenses.png';
img[11] = new Image(85,160);
img[11].src = '../images/button-licenses-roll.png';
img[12] = new Image(85,151);
img[12].src = '../images/button-contact.png';
img[13] = new Image(85,160);
img[13].src = '../images/button-contact-roll.png';

function swap(cur, next)
{
	cur.src = img[next].src;
}