var oas='http://ads.pentoninteractive.com/RealMedia/ads/';
var RN = new String (Math.random());
var RNS = RN.substring (2, 11);

function DisplayAdHereAnySize (position, sitepage, keyword)
{
//this is a secondary constructor that calls the default with zeroes for size
DisplayAdHere (position, 0, 0, sitepage, keyword);
}

<!-- here is the ad insertion function -->
function DisplayAdHere (position, width, height, sitepage, keyword)
{

var oaspage= sitepage + '/1' + RNS + '@' + position;

var height_para;
var width_para;

  if (height > 0)
	{
		height_para = ' HEIGHT="' + height + '" ';
	}
	else 
	{
		height_para = "";
	}
	
  if (width > 0)
   {
	  width_para = 'WIDTH="' + width + '" ';
	}
	else
	{
		width_para = "";
	}
	
  if (keyword != "")
	{
	oaspage = oaspage + keyword;
	}

//alert(oaspage);
if (_version < 11) {
document.write ('<A HREF="' + oas + 'click_nx.ads/'+ oaspage + '" TARGET="_blank" >')
document.write ('<IMG SRC="' + oas + 'adstream_nx.cgi/' + oaspage + '" BORDER="0" ' + width_para +  height_para + '></a>');
} else {
document.write ('<SCRIPT LANGUAGE="JavaScript1.1" SRC="' + oas + 'adstream_jx.ads/' + oaspage + '">');
document.write ('\<\!-- --\>');
document.write ('\<\/SCRIPT\>');
document.write ('\<\!-- --\>');
}
}