//check width of viewport and show skyscraper if >= 1270....
 var viewportwidth;

 // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
 if (typeof window.innerWidth != 'undefined')
 {
      viewportwidth = window.innerWidth;
 }

 // IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)
 else if (typeof document.documentElement != 'undefined'
     && typeof document.documentElement.clientWidth !=
     'undefined' && document.documentElement.clientWidth != 0)
 {
       viewportwidth = document.documentElement.clientWidth+21; //add a few pix
 }

 // older versions of IE
 else
 {
       viewportwidth = document.getElementsByTagName('body')[0].clientWidth;
       client = 'ouwe ie meuk';
 }

if (viewportwidth >= 1260)
{
	showBanner('120x600');
}