var impAserver = "http://as.ao.impact-ad.jp";
var impAtarget = "/SITE="+targetSite+"/AREA="+targetArea+"/AAMSZ="+adSize+"/OENCJP=UTF8";

impArnd = Math.round(Math.random() * 100000000);
if (!impApid) var impApid = Math.round(Math.random() * 100000000);

document.write('<scr');
document.write('ipt type="text/javascript" language="JavaScript" src="' + impAserver + '/jserver/acc_random=' + impArnd + impAtarget + '/pageid=' + impApid + '">');
document.write('</scr');
document.write('ipt>');