I made some improvements on the password strength meters available on the web. Using prototype/scriptaculous, I stole some code from ZeBadger (thanks!) and created a new meter which dynamically changes while typing your password.

Click here to see the demo

If you want to use this script, feel free to download the source and use it on your website.

Enjoy.

While playing around with the prototype framework, I wrote 2 code snipplets I want to share with you:

 
var _ = function(sEName, id, classname, attributes) {
	var e = document.createElement(sEName);
	if(id) { e.id = id; }
	if(classname) { e.className = classname; }
	if(attributes) { for(var p in attributes) { e.setAttribute(p, attributes[p]); }	}
	return $(e);
}
 
Element.addMethods({
	_a: function(element, e) {
		element.appendChild(e);
		return $(e);
	},
	_r: function(element, e) {
		element.removeChild(e);
		return$(e);
	}
});

Using the functions above, you will be able to create HTML structures on the fast DOM-lane:

 
var oHTML = _('div', 'head', 'headClass');
oHTML._a(_('div', 'second', 'secondClass'))._a(_('img', 'myimage', 'images', {src:'pica.jpg'}));
document.body.appendChild(oHTML);

Which results in:

 
<div id="head" class="headClass">
<div id="second" class="secondClass">
     <img src="pica.jpg" id="myimage" class="images" />
  </div>
</div>
 

Enjoy.