var number=3;
var random_number=0;
today=new Date();
jran=today.getTime();
ia=9301;
ic=49297;
im=233280;
jran = (jran*ia+ic) % im;
random_number=Math.ceil( (jran/(im*1.0)) *number);
image    = new Array(20);
prelink  = new Array(20);
link     = new Array(20);
postlink = new Array(20);

image[0]    = "ads/hhresort.gif";
prelink[0]  = "";
link[0]     = "/cgi-bin/redir.pl?url=www.myhiltonheadcondo.com";
postlink[0] = "";

image[1]    = "ads/hhresort.gif";
prelink[1]  = "";
link[1]     = "/cgi-bin/redir.pl?url=www.myhiltonheadcondo.com";
postlink[1] = "";

image[2]    = "ads/hotelscom.gif";
prelink[2]  = "";
link[2]     = "http://travel.ian.com/index.jsp?cid=242837";
postlink[2] = "";

image[3]    = "ads/hhresort.gif";
prelink[3]  = "";
link[3]     = "/cgi-bin/redir.pl?url=www.myhiltonheadcondo.com";
postlink[3] = "";