var Win;
var page_index=0;
var page = new Array();
page[0] = "http://www.linkbrander.com/go/74179";
page[1] = "http://www.linkbrander.com/go/74180";
page[2] = "http://www.linkbrander.com/go/74181";
page[3] = "http://www.linkbrander.com/go/74182";


function next_page()
{
 
   page_index++;
   if (page_index == 4) 
        page_index = 0;
   Win.location.replace(page[page_index]);


}

Win=window.open(page[0], 'Win','resizable=yes,scrollbars=yes,toolbar=yes,width=500,height=300')
setInterval("next_page();",30000);
window.focus();