var str0 = " <iframe marginwidth=0 marginheight=0  frameborder=0 bordercolor='#000000' scrolling=no src='http://element.netbig.com/nan/468x60/iframe_ebs.htm' width=468 height=60></iframe> ";
var str1 = " <iframe marginwidth=0 marginheight=0  frameborder=0 bordercolor='#000000' scrolling=no src='http://element.netbig.com/nan/468x60/iframe_ebs.htm' width=468 height=60></iframe> ";
var str2 = " <iframe marginwidth=0 marginheight=0  frameborder=0 bordercolor='#000000' scrolling=no src='http://element.netbig.com/nan/468x60/iframe_ebs.htm' width=468 height=60></iframe> ";
var str3 = " <iframe marginwidth=0 marginheight=0  frameborder=0 bordercolor='#000000' scrolling=no src='http://element.netbig.com/nan/468x60/iframe_ebs.htm' width=468 height=60></iframe> ";

var i=1;
 
i=(Math.floor(Math.random(i)*3));

if (i==0) document.writeln(str0);
if (i==1) document.writeln(str1);
if (i==2) document.writeln(str2);
if (i==3) document.writeln(str3);