// form validation function //
function validatede(form) {

  var email = form.email.value;



  var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;


  if(email == "") {
    alert('Error: You must enter your email.');
    return false;
  }
  if(!email.match(emailRegex)) {
    alert('Error: You have entered an invalid email.');
    return false;
  }

  return true;
}



// add to favourites //
 
function addToFavourites() {
var pageURL = window.location.href;
var pageName = document.title;
	  if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)) {
  window.external.AddFavorite(pageURL,pageName);
  } else if (navigator.appName == "Netscape") {
    window.sidebar.addPanel(pageName,pageURL,"");
  } else {
    alert("Press CTRL-D (Netscape) or CTRL-T (Opera) to bookmark");
} } 

// email page //
function mailpage()
{
mail_str = "mailto:?subject=Check out the " + document.title;
mail_str += "&body=I thought you might be interested in the " + document.title;
mail_str += ". You can view it at, " + location.href; 
location.href = mail_str;
}