window.onload = function() {
  var img = document.getElementsByTagName('img');
  var len = img.length;

  for (var i = 0; i < len; i++) {
    var ele = img[i];
    ele.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+ ele.src +"', sizingMethod='image')";
  }
}

function validateSubscribe(form) {
  if (!form.fullname.value.trim()) {
    alert('Please enter Your full name.');
    form.fullname.focus();
    return false;
  }
  if (!form.email.value.trim()) {
    alert('Please enter Your e-mail address.');
    form.email.focus();
    return false;
  }
  if (!validateAddress(form.email)) { return false; }
  alert('Thank You.');
  return true;
}

function validateAddress(node) {
 var filter = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
 if (filter.test(node.value)) return true;

 node.focus();
 node.select();
 alert('This is not a valid e-mail address.');
 return false;
}

String.prototype.trim = function() { return this.replace(/^\s+/,"").replace(/\s+$/,"").replace(/  +/g,"") }