/* a134.dl - Tue May 23 15:07:35 EDT 2006 */
function findFrame() {
        // need to find a sibling up the tree
	var p = window;
        var ref;

        while (p != top) {
                try {
                  if (p.location.host == window.location.host) {
                        ref = p.document.referrer;
                  }
                } catch (e) { // We expect this to happen if the domains are different.
                }

                p = p.parent;
        }

        return ref;
}

  var DL_noiframe = (self == top);

  var f = findFrame();
  var host;

  if (f) {
	host = f;
  } else {
  	host = document.referrer != '' ? document.referrer : document.location.href;
  }

  var shortDomain =  document.domain;

  while (shortDomain.indexOf('.') != -1 && !DL_noiframe) {
  // Don't bother with gatefile if we're already in the right domain
  try {
    if (top.document.domain == document.domain) DL_noiframe = true;
  } catch (e) {
	shortDomain =  document.domain.substr(document.domain.indexOf('.')+1);
        if (shortDomain.indexOf('.') != -1) {
        	document.domain = shortDomain;
	}
  }

  } /* while */
  var DL_params = '&type=d_link&survey_num=0&site=5084&code=0&survey_server=survey.questionmarket.com&dl_logo=nyt-775x100-1l-eng-nul.jpg&dl_invite=generic_nonincentive&dl_autoskip=40&dl_exclude=select.nytimes.com&img=http://amch.questionmarket.com/static/&delay=0&go_delay=0&use_brand=&dl_delay_capture=5000';
  if (!DL_noiframe) {DL_params = DL_params + '&gf=/ads/dynamiclogic/GateFile.html';
    var strIframeLocation = "/ads/dynamiclogic/GateFile.html";
    // Is /ads/dynamiclogic/GateFile.html a directory or a complete filename?
    if (strIframeLocation.substr(-1) == '/' ||
        strIframeLocation.indexOf(".") == -1)
      strIframeLocation += "/GateFile.html";
    strIframeLocation += "?sub=amch";
    
	function ebGetHostName(a) {
		var i;
		var host = '';
		if ((a.length >= 7) && (a.substr(0,7) == "http://")) {
			host = a.substr(7);
		} else {
			if ((a.length >= 8) && (a.substr(0,8) == "https://")) {
				host = a.substr(8);
			} else {
				host=a;
			}
		}
		i=host.indexOf("/");
		if (i>0) {
			host = host.substr(0,i);
		}
		return(host);
	}

	
	if (strIframeLocation.substr(0,4) != "http") {

		var siteHost = ebGetHostName(host);

		if (strIframeLocation.charAt(0) != "/")
                        strIframeLocation = '/' + strIframeLocation;

                strIframeLocation = "http://" + siteHost + strIframeLocation;

	  // for testing purposes: send another request if we're in two or more nested iframes
	  if (parent != top) {
	      var DL_element = document.createElement('script');
	      DL_element.type="text/javascript";
	      DL_element.src="http://amch.questionmarket.com/adscgen/log_error.php?errcode=1&details="+
	        (escape("d0/5084/0 " + siteHost ));
	      document.getElementsByTagName('head').item(0).appendChild(DL_element);
	  }
	}

        var DL_element = document.createElement('iframe');
        DL_element.frameborder=0;
        DL_element.width=0;
        DL_element.height=0;
        DL_element.src=strIframeLocation+DL_params;
        DL_element.setAttribute('style', 'display:none; visibility:hidden; border:none');
        document.body.insertBefore(DL_element, document.body.firstChild);  } else {
    var DL_element = top.document.createElement('script');
    DL_element.type="text/javascript";
    DL_element.src="http://amch.questionmarket.com/adscgen/dynamiclink.js.php?sub=amch"+DL_params+"&"+
                    (window == top? "noiframe=true" : "")+"&onload=1";
    top.document.getElementsByTagName('head').item(0).appendChild(DL_element);
  }