adboxes = new Array(4);

adboxes[0] ="<a href=\"http://www.netfornepal.com\" target=\"_blank\"><img src=\"http://www.nepalhomepage.com/template/adboxes/netfornepal.gif\" border=1 width=120 height=60></a>";
adboxes[1] ="<a href=\"http://www.kathmandumart.com\" target=\"_blank\"><img src=\"http://www.nepalhomepage.com/template/adboxes/kathmandumart.gif\" border=1 width=120 height=60></a>";
adboxes[2] ="<a href=\"http://www.muncha.com/nepalhomepage.asp\" target=\"_blank\"><img src=\"http://www.muncha.com/images/banner_ad/nepalhomepage.gif\" border=1 width=120 height=60></a>";
adboxes[3] ="<a href=\"http://www.monterosa-nepal.com\" target=\"_blank\"><img src=\"http://www.nepalhomepage.com/template/adboxes/monterosa-nepal.gif\" border=1 width=120 height=60></a>";

index1 = Math.floor(Math.random() * adboxes.length);
index2 = (index1 + 1) % adboxes.length;
index3 = (index1 + 2) % adboxes.length;

function adbox1() {
	document.write(adboxes[index1])
}

function adbox2() {
	document.write(adboxes[index2])
}

function adbox3() {
	document.write(adboxes[index3])
}