switch(ad_size) { case '468x60': var height = '60'; var width = '468'; break; case '728x90': var height = '90'; var width = '728'; break; case '160x600': var height = '600'; var width = '160'; break; case '120x600': var height = '600'; var width = '120'; break; case '300x250': var height = '250'; var width = '300'; break; }  document.write('<iframe name="adframe" id="adframe" src="' + adurl + 'getads.php?kw=' + keywords + '&ag=' + ad_group + '&size=' + ad_size + '&lc=' + link_color + '&bg=' +  bg_color + '&bc=' + border_color + '&fbg=' + footer_color + '&flc=' + footer_link + '&affid=' + affiliate_id + '" frameborder="0" allowtransparency="true" scrolling="no" width="' + width + '" height="' + height + '"></iframe>');