// Visionael Newsletter Script

        function click_newsletter() {
            document.getElementById("nlsub-button").style.display="none"; 
            document.getElementById("nlsub-button").style.visibility = "hidden";
            document.getElementById("nlsub-form").style.display="inherit";                                                  
            document.getElementById("nlsub-form").style.visibility = "visible";
            document.forms["nlsub-form-ui"].elements["emailaddress"].focus();
            return true;
        }
        
        function ajaxRequest(){
         var activexmodes=["Msxml2.XMLHTTP", "Microsoft.XMLHTTP"]; //activeX versions to check for in IE
         if (window.ActiveXObject){ //Test for support for ActiveXObject in IE first (as XMLHttpRequest in IE7 is broken)
          for (var i=0; i<activexmodes.length; i++){
           try{
            return new ActiveXObject(activexmodes[i]);
           }
           catch(e){
            //suppress error
           }
          }
         }
         else if (window.XMLHttpRequest) // if Mozilla, Safari etc
          return new XMLHttpRequest();
         else
          return false;
        }        

        function IsEmpty(aTextField) {
           if ((aTextField.value.length==0) || (aTextField.value==null)) {
              return true;
           }
           else {
              return false; 
           }
        }	



        function signupnewsletter() {
            var ajo = new ajaxRequest();
            var emailtext = document.forms["nlsub-form-ui"].elements["emailaddress"].value;
            
            if ( (emailtext == "") || ( emailtext.indexOf("@") <= 0) ) {
                alert("Please enter a valid email address");
                return false;
            } else
            {
                ajo.open("GET", "/cbin032/signupnewsletter.asp?email=" + document.forms["nlsub-form-ui"].elements["emailaddress"].value, true);
                ajo.send(null);
                alert("Thank you for subscribing to Visionael Newsletter");   
                return true;
            }
        }