gistfile1.js

function alcGetUrlWithProtocol(url)
{
  var useSSL = 'https:' == document.location.protocol;
  if (useSSL == true){
    var new_url = url.replace(/http:/,'https:');  
  }else{   
    var new_url = url ;
  } 
  
  return new_url
}

function alcFindScriptElement(url){
  var alcTagElement = null;
  var scripts = document.getElementsByTagName('script');
  if(scripts!=null){
    for(var i=scripts.length-1;alcTagElement==null && i >= 0 ;i--){
      var scriptElement=scripts[i];var scriptSrc=scriptElement.src;
      if(scriptSrc.match(url)){alcTagElement=scriptElement;}
    }
  }
  return alcTagElement;
}

function alcGetElementbySource(type,source){
  var allImages = document.getElementsByTagName(type);
  var target;
  for(var i = 0, max = allImages.length; i < max; i++)
    if (allImages[i].src === source){
       target = allImages[i];
       break;
    }
}

function alcCreatePixelElement(source){
  var image = document.createElement('img');
  image.src = alcGetUrlWithProtocol(source);
  image.style.display = 'none';
  allScriptTags = document.getElementsByTagName('script');
  lastScriptTag = allScriptTags[allScriptTags.length - 1];
  lastScriptTag.parentNode.insertBefore(image, lastScriptTag);
}

function alcCreateScriptElement(source){
  var script = document.createElement('script');
  script.src = alcGetUrlWithProtocol(source);
  script.type = 'text/javascript';
  script.async = true;
  allScriptTags = document.getElementsByTagName('script');
  lastScriptTag = allScriptTags[allScriptTags.length - 1];
  lastScriptTag.parentNode.insertBefore(script, lastScriptTag);
}

// add crypto to the page.
alcCreateScriptElement("http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/sha1.js");


function alc_submit_form()
    {
        var alcEmail = document.frmMain.elements["email"].value;

        emailReturned1 = CryptoJS.SHA1(alcEmail.toUpperCase());
        emailReturned2 = CryptoJS.SHA1(alcEmail.toLowerCase());

        alcCreatePixelElement("http://ei.rlcdn.com/382379.gif?s="+emailReturned1+"&n=1");
        
        document.frmMain.submit();
    }