Error. Please Help

I am trying to use this site: http://htmlbasix.com/cookiedpopup.shtml

To basically enter 5 different pieces of pop-under codes and if users go through 5 different pages of my site they will get a different pop-under. After that initial 5 of course they will not get anymore as they will be cookied off

Here is the code I am putting on my site

<script language="JavaScript">
<!--  
var frequencyCap = 12; 
function setCookie(cookieName,cookieValue, expirehours) {
  if (frequencyCap > 0) {
	var today = new Date();
	var expire = new Date();
 	expire.setTime(today.getTime() + 3600000 * frequencyCap);
 	document.cookie = cookieName+"="+escape(cookieValue) + ";expires="+expire.toGMTString();
  } else {
 	document.cookie = cookieName+"="+escape(cookieValue);
  }
}
function ReadCookie(cookieName) {
 var theCookie=""+document.cookie;
 var ind=theCookie.indexOf(cookieName);
 if (ind==-1 || cookieName=="") return ""; 
 var ind1=theCookie.indexOf(';',ind);
 if (ind1==-1) ind1=theCookie.length; 
 return unescape(theCookie.substring(ind+cookieName.length+1,ind1));
}

if (ReadCookie('cookie_popup') != '1') { 
 setCookie('cookie_popup','1', 5);
if (ReadCookie('ck1') != '1') { 
 setCookie('ck1','1', frequencyCap); 
document.write("<script src=\"http://www.adversal.com/cg.jsp\"></script>");
document.write("<script src=\"http://www.adversal.com/publisherJS.jsp\"></script>");
document.write("<script type=\"text/javascript\" language=\"javascript\">");
document.write("initAdversal(\"95f1c1f4d24be52347eebd68bc7a9c6d\", true);");
document.write("</script>");
}else if (ReadCookie('ck2') != '1') { 
 setCookie('ck2','1', frequencyCap); 
document.write("<div id=\"PaypopupStartCode\" style=\"display:none\">");
document.write("</div>");
document.write("<script language=\"JavaScript1.1\">");
document.write("if (typeof(paypopupScriptStart) == 'undefined') {var paypopupScriptStart = false;}");
document.write("if (!paypopupScriptStart) {");
document.write("	document.write('<scr'+'ipt src=\"http://popunder.adsrevenue.net/popup.php?'+(new Date()).getTime()+'&id=nash123&pop=enter&t=5&subid=52624&blk=1&fc=-1\"></scr'+'ipt>');");
document.write("	paypopupScriptStart = true;");
document.write("}");
document.write("</script>");
document.write("<noscript>");
document.write("<div style=\"width: 1px; height: 1px;overflow: hidden;\"><a href=\"http://www.paypopup.com\">Online Advertising</a></div>");
document.write("</noscript>");
}else if (ReadCookie('ck3') != '1') { 
 setCookie('ck3','1', frequencyCap); 
document.write("<SCRIPT TYPE=\"text/javascript\" SRC=\"http://content.yieldmanager.com/rmtag3.js\"></SCRIPT>");
document.write("<SCRIPT language=\"JavaScript\">");
document.write("var rm_host = \"http://ad.yieldmanager.com\";");
document.write("var rm_section_id = 64062;");
document.write("var rm_banned_pop_types = 29;");
document.write("var rm_pop_times = 1;");
document.write("var rm_pop_frequency = 86400;");
document.write("");
document.write("rmShowPop();");
document.write("</SCRIPT>");
}else if (ReadCookie('ck4') != '1') { 
 setCookie('ck4','1', frequencyCap); 
document.write("<script src=\"http://www.adversal.com/cg.jsp\"></script>");
document.write("<script src=\"http://www.adversal.com/publisherJS.jsp\"></script>");
document.write("<script type=\"text/javascript\" language=\"javascript\">");
document.write("initAdversal(\"95f1c1f4d24be52347eebd68bc7a9c6d\", true);");
document.write("</script>");
}else if (ReadCookie('ck5') != '1') { 
 setCookie('ck5','1', frequencyCap); 
document.write("<div id=\"PaypopupStartCode\" style=\"display:none\">");
document.write("</div>");
document.write("<script language=\"JavaScript1.1\">");
document.write("if (typeof(paypopupScriptStart) == 'undefined') {var paypopupScriptStart = false;}");
document.write("if (!paypopupScriptStart) {");
document.write("	document.write('<scr'+'ipt src=\"http://popunder.adsrevenue.net/popup.php?'+(new Date()).getTime()+'&id=nash123&pop=enter&t=5&subid=52624&blk=1&fc=-1\"></scr'+'ipt>');");
document.write("	paypopupScriptStart = true;");
document.write("}");
document.write("</script>");
document.write("<noscript>");
document.write("<div style=\"width: 1px; height: 1px;overflow: hidden;\"><a href=\"http://www.paypopup.com\">Online Advertising</a></div>");
document.write("</noscript>");
}
}

// --> 
</script> 
 

Code (markup):

This is the error that I get on my site:

"); document.write(""); document.write(""); }else if (ReadCookie('ck2') != '1') { setCookie('ck2','1', frequencyCap); document.write("
"); document.write("
"); document.write(""); document.write(""); }else if (ReadCookie('ck3') != '1') { setCookie('ck3','1', frequencyCap); document.write(""); document.write(""); }else if (ReadCookie('ck4') != '1') { setCookie('ck4','1', frequencyCap); document.write(""); document.write(""); document.write(""); }else if (ReadCookie('ck5') != '1') { setCookie('ck5','1', frequencyCap); document.write("
"); document.write("
"); document.write(""); document.write(""); } // -->

Code (markup):

Any ideas, any help, any other piece of setup would be VERY helpful. Thanks!